You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@cassandra.apache.org by al...@apache.org on 2013/12/21 22:40:50 UTC

[1/4] Rename RowMutation->Mutation in preparation for Row->Partition

Updated Branches:
  refs/heads/trunk d7536612f -> 6bbb13b9b


http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/compaction/BlacklistingCompactionsTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/compaction/BlacklistingCompactionsTest.java b/test/unit/org/apache/cassandra/db/compaction/BlacklistingCompactionsTest.java
index d73ccfd..de449d8 100644
--- a/test/unit/org/apache/cassandra/db/compaction/BlacklistingCompactionsTest.java
+++ b/test/unit/org/apache/cassandra/db/compaction/BlacklistingCompactionsTest.java
@@ -31,10 +31,7 @@ import org.junit.Test;
 
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.Util;
-import org.apache.cassandra.db.ColumnFamilyStore;
-import org.apache.cassandra.db.DecoratedKey;
-import org.apache.cassandra.db.RowMutation;
-import org.apache.cassandra.db.Keyspace;
+import org.apache.cassandra.db.*;
 import org.apache.cassandra.io.sstable.SSTableReader;
 import org.apache.cassandra.io.util.FileUtils;
 import org.apache.cassandra.utils.ByteBufferUtil;
@@ -92,7 +89,7 @@ public class BlacklistingCompactionsTest extends SchemaLoader
             for (int i = 0; i < ROWS_PER_SSTABLE; i++)
             {
                 DecoratedKey key = Util.dk(String.valueOf(i % 2));
-                RowMutation rm = new RowMutation(KEYSPACE, key.key);
+                Mutation rm = new Mutation(KEYSPACE, key.key);
                 long timestamp = j * ROWS_PER_SSTABLE + i;
                 rm.add("Standard1", cellname(i / 2), ByteBufferUtil.EMPTY_BYTE_BUFFER, timestamp);
                 maxTimestampExpected = Math.max(timestamp, maxTimestampExpected);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/compaction/CompactionsPurgeTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/compaction/CompactionsPurgeTest.java b/test/unit/org/apache/cassandra/db/compaction/CompactionsPurgeTest.java
index 03a8c71..ac58839 100644
--- a/test/unit/org/apache/cassandra/db/compaction/CompactionsPurgeTest.java
+++ b/test/unit/org/apache/cassandra/db/compaction/CompactionsPurgeTest.java
@@ -23,16 +23,12 @@ import java.util.Collection;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 
-import org.apache.cassandra.db.Cell;
+import org.apache.cassandra.db.*;
+
 import org.junit.Test;
 
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.cql3.UntypedResultSet;
-import org.apache.cassandra.db.Keyspace;
-import org.apache.cassandra.db.DecoratedKey;
-import org.apache.cassandra.db.RowMutation;
-import org.apache.cassandra.db.ColumnFamily;
-import org.apache.cassandra.db.ColumnFamilyStore;
 import org.apache.cassandra.db.filter.QueryFilter;
 import org.apache.cassandra.io.sstable.SSTableReader;
 import org.apache.cassandra.Util;
@@ -63,10 +59,10 @@ public class CompactionsPurgeTest extends SchemaLoader
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfName);
 
         DecoratedKey key = Util.dk("key1");
-        RowMutation rm;
+        Mutation rm;
 
         // inserts
-        rm = new RowMutation(KEYSPACE1, key.key);
+        rm = new Mutation(KEYSPACE1, key.key);
         for (int i = 0; i < 10; i++)
         {
             rm.add(cfName, cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
@@ -77,14 +73,14 @@ public class CompactionsPurgeTest extends SchemaLoader
         // deletes
         for (int i = 0; i < 10; i++)
         {
-            rm = new RowMutation(KEYSPACE1, key.key);
+            rm = new Mutation(KEYSPACE1, key.key);
             rm.delete(cfName, cellname(String.valueOf(i)), 1);
             rm.apply();
         }
         cfs.forceBlockingFlush();
 
         // resurrect one column
-        rm = new RowMutation(KEYSPACE1, key.key);
+        rm = new Mutation(KEYSPACE1, key.key);
         rm.add(cfName, cellname(String.valueOf(5)), ByteBufferUtil.EMPTY_BYTE_BUFFER, 2);
         rm.apply();
         cfs.forceBlockingFlush();
@@ -106,12 +102,12 @@ public class CompactionsPurgeTest extends SchemaLoader
         String cfName = "Standard1";
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfName);
 
-        RowMutation rm;
+        Mutation rm;
         for (int k = 1; k <= 2; ++k) {
             DecoratedKey key = Util.dk("key" + k);
 
             // inserts
-            rm = new RowMutation(KEYSPACE2, key.key);
+            rm = new Mutation(KEYSPACE2, key.key);
             for (int i = 0; i < 10; i++)
             {
                 rm.add(cfName, cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
@@ -122,7 +118,7 @@ public class CompactionsPurgeTest extends SchemaLoader
             // deletes
             for (int i = 0; i < 10; i++)
             {
-                rm = new RowMutation(KEYSPACE2, key.key);
+                rm = new Mutation(KEYSPACE2, key.key);
                 rm.delete(cfName, cellname(String.valueOf(i)), 1);
                 rm.apply();
             }
@@ -136,7 +132,7 @@ public class CompactionsPurgeTest extends SchemaLoader
         // for first key. Then submit minor compaction on remembered sstables.
         cfs.forceBlockingFlush();
         Collection<SSTableReader> sstablesIncomplete = cfs.getSSTables();
-        rm = new RowMutation(KEYSPACE2, key1.key);
+        rm = new Mutation(KEYSPACE2, key1.key);
         rm.add(cfName, cellname(String.valueOf(5)), ByteBufferUtil.EMPTY_BYTE_BUFFER, 2);
         rm.apply();
         cfs.forceBlockingFlush();
@@ -164,24 +160,24 @@ public class CompactionsPurgeTest extends SchemaLoader
         Keyspace keyspace = Keyspace.open(KEYSPACE2);
         String cfName = "Standard1";
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfName);
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey key3 = Util.dk("key3");
 
         // inserts
-        rm = new RowMutation(KEYSPACE2, key3.key);
+        rm = new Mutation(KEYSPACE2, key3.key);
         rm.add(cfName, cellname("c1"), ByteBufferUtil.EMPTY_BYTE_BUFFER, 8);
         rm.add(cfName, cellname("c2"), ByteBufferUtil.EMPTY_BYTE_BUFFER, 8);
         rm.apply();
         cfs.forceBlockingFlush();
         // delete c1
-        rm = new RowMutation(KEYSPACE2, key3.key);
+        rm = new Mutation(KEYSPACE2, key3.key);
         rm.delete(cfName, cellname("c1"), 10);
         rm.apply();
         cfs.forceBlockingFlush();
         Collection<SSTableReader> sstablesIncomplete = cfs.getSSTables();
 
         // delete c2 so we have new delete in a diffrent SSTable
-        rm = new RowMutation(KEYSPACE2, key3.key);
+        rm = new Mutation(KEYSPACE2, key3.key);
         rm.delete(cfName, cellname("c2"), 9);
         rm.apply();
         cfs.forceBlockingFlush();
@@ -206,10 +202,10 @@ public class CompactionsPurgeTest extends SchemaLoader
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfName);
 
         DecoratedKey key = Util.dk("key1");
-        RowMutation rm;
+        Mutation rm;
 
         // inserts
-        rm = new RowMutation(KEYSPACE1, key.key);
+        rm = new Mutation(KEYSPACE1, key.key);
         for (int i = 0; i < 5; i++)
         {
             rm.add(cfName, cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
@@ -219,7 +215,7 @@ public class CompactionsPurgeTest extends SchemaLoader
         // deletes
         for (int i = 0; i < 5; i++)
         {
-            rm = new RowMutation(KEYSPACE1, key.key);
+            rm = new Mutation(KEYSPACE1, key.key);
             rm.delete(cfName, cellname(String.valueOf(i)), 1);
             rm.apply();
         }
@@ -244,10 +240,10 @@ public class CompactionsPurgeTest extends SchemaLoader
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfName);
 
         DecoratedKey key = Util.dk("key3");
-        RowMutation rm;
+        Mutation rm;
 
         // inserts
-        rm = new RowMutation(keyspaceName, key.key);
+        rm = new Mutation(keyspaceName, key.key);
         for (int i = 0; i < 10; i++)
         {
             rm.add(cfName, cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
@@ -258,7 +254,7 @@ public class CompactionsPurgeTest extends SchemaLoader
         cfs.getColumnFamily(QueryFilter.getIdentityFilter(key, cfName, System.currentTimeMillis()));
 
         // deletes row
-        rm = new RowMutation(keyspaceName, key.key);
+        rm = new Mutation(keyspaceName, key.key);
         rm.delete(cfName, 1);
         rm.apply();
 
@@ -267,7 +263,7 @@ public class CompactionsPurgeTest extends SchemaLoader
         Util.compactAll(cfs, Integer.MAX_VALUE).get();
 
         // re-inserts with timestamp lower than delete
-        rm = new RowMutation(keyspaceName, key.key);
+        rm = new Mutation(keyspaceName, key.key);
         for (int i = 0; i < 10; i++)
         {
             rm.add(cfName, cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
@@ -291,17 +287,17 @@ public class CompactionsPurgeTest extends SchemaLoader
         Keyspace keyspace = Keyspace.open(keyspaceName);
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfName);
         DecoratedKey key = Util.dk("key3");
-        RowMutation rm;
+        Mutation rm;
         QueryFilter filter = QueryFilter.getIdentityFilter(key, cfName, System.currentTimeMillis());
 
         // inserts
-        rm = new RowMutation(keyspaceName, key.key);
+        rm = new Mutation(keyspaceName, key.key);
         for (int i = 0; i < 10; i++)
             rm.add(cfName, cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, i);
         rm.apply();
 
         // deletes row with timestamp such that not all columns are deleted
-        rm = new RowMutation(keyspaceName, key.key);
+        rm = new Mutation(keyspaceName, key.key);
         rm.delete(cfName, 4);
         rm.apply();
         ColumnFamily cf = cfs.getColumnFamily(filter);
@@ -313,7 +309,7 @@ public class CompactionsPurgeTest extends SchemaLoader
         assertFalse(cfs.getColumnFamily(filter).isMarkedForDelete());
 
         // re-inserts with timestamp lower than delete
-        rm = new RowMutation(keyspaceName, key.key);
+        rm = new Mutation(keyspaceName, key.key);
         for (int i = 0; i < 5; i++)
             rm.add(cfName, cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, i);
         rm.apply();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/compaction/CompactionsTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/compaction/CompactionsTest.java b/test/unit/org/apache/cassandra/db/compaction/CompactionsTest.java
index b78f182..e7aa442 100644
--- a/test/unit/org/apache/cassandra/db/compaction/CompactionsTest.java
+++ b/test/unit/org/apache/cassandra/db/compaction/CompactionsTest.java
@@ -35,10 +35,8 @@ import org.apache.cassandra.OrderedJUnit4ClassRunner;
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.Util;
 import org.apache.cassandra.db.*;
-import org.apache.cassandra.db.columniterator.IdentityQueryFilter;
 import org.apache.cassandra.db.columniterator.OnDiskAtomIterator;
 import org.apache.cassandra.db.filter.QueryFilter;
-import org.apache.cassandra.db.marshal.CompositeType;
 import org.apache.cassandra.dht.BytesToken;
 import org.apache.cassandra.dht.Range;
 import org.apache.cassandra.dht.Token;
@@ -71,7 +69,7 @@ public class CompactionsTest extends SchemaLoader
         for (int i = 0; i < 10; i++)
         {
             DecoratedKey key = Util.dk(Integer.toString(i));
-            RowMutation rm = new RowMutation(KEYSPACE1, key.key);
+            Mutation rm = new Mutation(KEYSPACE1, key.key);
             for (int j = 0; j < 10; j++)
                 rm.add("Standard1", Util.cellname(Integer.toString(j)),
                        ByteBufferUtil.EMPTY_BYTE_BUFFER,
@@ -132,7 +130,7 @@ public class CompactionsTest extends SchemaLoader
         ByteBuffer scName = ByteBufferUtil.bytes("TestSuperColumn");
 
         // a subcolumn
-        RowMutation rm = new RowMutation(KEYSPACE1, key.key);
+        Mutation rm = new Mutation(KEYSPACE1, key.key);
         rm.add("Super1", Util.cellname(scName, ByteBufferUtil.bytes(0)),
                ByteBufferUtil.EMPTY_BYTE_BUFFER,
                FBUtilities.timestampMicros());
@@ -140,7 +138,7 @@ public class CompactionsTest extends SchemaLoader
         cfs.forceBlockingFlush();
 
         // shadow the subcolumn with a supercolumn tombstone
-        rm = new RowMutation(KEYSPACE1, key.key);
+        rm = new Mutation(KEYSPACE1, key.key);
         rm.deleteRange("Super1", SuperColumns.startOf(scName), SuperColumns.endOf(scName), FBUtilities.timestampMicros());
         rm.apply();
         cfs.forceBlockingFlush();
@@ -182,7 +180,7 @@ public class CompactionsTest extends SchemaLoader
         for (int i=1; i < 5; i++)
         {
             DecoratedKey key = Util.dk(String.valueOf(i));
-            RowMutation rm = new RowMutation(KEYSPACE1, key.key);
+            Mutation rm = new Mutation(KEYSPACE1, key.key);
             rm.add("Standard2", Util.cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, i);
             rm.apply();
 
@@ -197,7 +195,7 @@ public class CompactionsTest extends SchemaLoader
         for (int i=1; i < 5; i++)
         {
             DecoratedKey key = Util.dk(String.valueOf(i));
-            RowMutation rm = new RowMutation(KEYSPACE1, key.key);
+            Mutation rm = new Mutation(KEYSPACE1, key.key);
             rm.add("Standard2", Util.cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, i);
             rm.apply();
         }
@@ -242,7 +240,7 @@ public class CompactionsTest extends SchemaLoader
         final int ROWS_PER_SSTABLE = 10;
         for (int i = 0; i < ROWS_PER_SSTABLE; i++) {
             DecoratedKey key = Util.dk(String.valueOf(i));
-            RowMutation rm = new RowMutation(KEYSPACE1, key.key);
+            Mutation rm = new Mutation(KEYSPACE1, key.key);
             rm.add(cfname, Util.cellname("col"),
                    ByteBufferUtil.EMPTY_BYTE_BUFFER,
                    System.currentTimeMillis());
@@ -310,7 +308,7 @@ public class CompactionsTest extends SchemaLoader
 
         // Add test row
         DecoratedKey key = Util.dk(k);
-        RowMutation rm = new RowMutation(KEYSPACE1, key.key);
+        Mutation rm = new Mutation(KEYSPACE1, key.key);
         rm.add(cfname, Util.cellname(ByteBufferUtil.bytes("sc"), ByteBufferUtil.bytes("c")), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
         rm.apply();
 
@@ -322,7 +320,7 @@ public class CompactionsTest extends SchemaLoader
         assert !(cfs.getColumnFamily(filter).getColumnCount() == 0);
 
         // Remove key
-        rm = new RowMutation(KEYSPACE1, key.key);
+        rm = new Mutation(KEYSPACE1, key.key);
         rm.delete(cfname, 2);
         rm.apply();
 
@@ -364,7 +362,7 @@ public class CompactionsTest extends SchemaLoader
     {
         long timestamp = System.currentTimeMillis();
         DecoratedKey decoratedKey = Util.dk(String.format("%03d", key));
-        RowMutation rm = new RowMutation(KEYSPACE1, decoratedKey.key);
+        Mutation rm = new Mutation(KEYSPACE1, decoratedKey.key);
         rm.add("Standard1", Util.cellname("col"), ByteBufferUtil.EMPTY_BYTE_BUFFER, timestamp, 1000);
         rm.apply();
     }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/compaction/LeveledCompactionStrategyTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/compaction/LeveledCompactionStrategyTest.java b/test/unit/org/apache/cassandra/db/compaction/LeveledCompactionStrategyTest.java
index a107e1b..38c6d56 100644
--- a/test/unit/org/apache/cassandra/db/compaction/LeveledCompactionStrategyTest.java
+++ b/test/unit/org/apache/cassandra/db/compaction/LeveledCompactionStrategyTest.java
@@ -30,19 +30,13 @@ import org.junit.runner.RunWith;
 import org.apache.cassandra.OrderedJUnit4ClassRunner;
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.Util;
-import org.apache.cassandra.db.ColumnFamilyStore;
-import org.apache.cassandra.db.DecoratedKey;
-import org.apache.cassandra.db.RowMutation;
-import org.apache.cassandra.db.Keyspace;
+import org.apache.cassandra.db.*;
 import org.apache.cassandra.dht.Range;
 import org.apache.cassandra.dht.Token;
-import org.apache.cassandra.io.sstable.Component;
 import org.apache.cassandra.io.sstable.SSTableReader;
 import org.apache.cassandra.repair.RepairJobDesc;
 import org.apache.cassandra.repair.Validator;
-import org.apache.cassandra.utils.ByteBufferUtil;
 import org.apache.cassandra.utils.FBUtilities;
-import org.apache.cassandra.utils.Pair;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
@@ -71,7 +65,7 @@ public class LeveledCompactionStrategyTest extends SchemaLoader
         for (int r = 0; r < rows; r++)
         {
             DecoratedKey key = Util.dk(String.valueOf(r));
-            RowMutation rm = new RowMutation(ksname, key.key);
+            Mutation rm = new Mutation(ksname, key.key);
             for (int c = 0; c < columns; c++)
             {
                 rm.add(cfname, Util.cellname("column" + c), value, 0);
@@ -119,7 +113,7 @@ public class LeveledCompactionStrategyTest extends SchemaLoader
         for (int r = 0; r < rows; r++)
         {
             DecoratedKey key = Util.dk(String.valueOf(r));
-            RowMutation rm = new RowMutation(ksname, key.key);
+            Mutation rm = new Mutation(ksname, key.key);
             for (int c = 0; c < columns; c++)
             {
                 rm.add(cfname, Util.cellname("column" + c), value, 0);
@@ -163,7 +157,7 @@ public class LeveledCompactionStrategyTest extends SchemaLoader
         for (int r = 0; r < rows; r++)
         {
             DecoratedKey key = Util.dk(String.valueOf(r));
-            RowMutation rm = new RowMutation(ksname, key.key);
+            Mutation rm = new Mutation(ksname, key.key);
             for (int c = 0; c < columns; c++)
             {
                 rm.add(cfname, Util.cellname("column" + c), value, 0);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/compaction/OneCompactionTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/compaction/OneCompactionTest.java b/test/unit/org/apache/cassandra/db/compaction/OneCompactionTest.java
index 31b3375..2cb45f4 100644
--- a/test/unit/org/apache/cassandra/db/compaction/OneCompactionTest.java
+++ b/test/unit/org/apache/cassandra/db/compaction/OneCompactionTest.java
@@ -28,10 +28,8 @@ import org.apache.cassandra.Util;
 import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;
-import org.apache.cassandra.db.Keyspace;
-import org.apache.cassandra.db.DecoratedKey;
-import org.apache.cassandra.db.RowMutation;
-import org.apache.cassandra.db.ColumnFamilyStore;
+
+import org.apache.cassandra.db.*;
 
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.utils.ByteBufferUtil;
@@ -49,7 +47,7 @@ public class OneCompactionTest extends SchemaLoader
         Set<DecoratedKey> inserted = new HashSet<DecoratedKey>();
         for (int j = 0; j < insertsPerTable; j++) {
             DecoratedKey key = Util.dk(String.valueOf(j));
-            RowMutation rm = new RowMutation("Keyspace1", key.key);
+            Mutation rm = new Mutation("Keyspace1", key.key);
             rm.add(columnFamilyName, Util.cellname("0"), ByteBufferUtil.EMPTY_BYTE_BUFFER, j);
             rm.apply();
             inserted.add(key);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/compaction/SizeTieredCompactionStrategyTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/compaction/SizeTieredCompactionStrategyTest.java b/test/unit/org/apache/cassandra/db/compaction/SizeTieredCompactionStrategyTest.java
index bc4061c..bd4e76d 100644
--- a/test/unit/org/apache/cassandra/db/compaction/SizeTieredCompactionStrategyTest.java
+++ b/test/unit/org/apache/cassandra/db/compaction/SizeTieredCompactionStrategyTest.java
@@ -24,14 +24,10 @@ import org.junit.Test;
 
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.Util;
-import org.apache.cassandra.db.ColumnFamilyStore;
-import org.apache.cassandra.db.DecoratedKey;
-import org.apache.cassandra.db.Keyspace;
-import org.apache.cassandra.db.RowMutation;
+import org.apache.cassandra.db.*;
 import org.apache.cassandra.exceptions.ConfigurationException;
 import org.apache.cassandra.io.sstable.SSTableReader;
 import org.apache.cassandra.metrics.RestorableMeter;
-import org.apache.cassandra.utils.ByteBufferUtil;
 import org.apache.cassandra.utils.Pair;
 
 import static org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy.getBuckets;
@@ -164,7 +160,7 @@ public class SizeTieredCompactionStrategyTest extends SchemaLoader
         for (int r = 0; r < numSSTables; r++)
         {
             DecoratedKey key = Util.dk(String.valueOf(r));
-            RowMutation rm = new RowMutation(ksname, key.key);
+            Mutation rm = new Mutation(ksname, key.key);
             rm.add(cfname, Util.cellname("column"), value, 0);
             rm.apply();
             cfs.forceBlockingFlush();
@@ -208,7 +204,7 @@ public class SizeTieredCompactionStrategyTest extends SchemaLoader
         for (int r = 0; r < numSSTables; r++)
         {
             DecoratedKey key = Util.dk(String.valueOf(r));
-            RowMutation rm = new RowMutation(ksname, key.key);
+            Mutation rm = new Mutation(ksname, key.key);
             rm.add(cfname, Util.cellname("column"), value, 0);
             rm.apply();
             cfs.forceBlockingFlush();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/compaction/TTLExpiryTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/compaction/TTLExpiryTest.java b/test/unit/org/apache/cassandra/db/compaction/TTLExpiryTest.java
index 1d6664e..9aeb6d6 100644
--- a/test/unit/org/apache/cassandra/db/compaction/TTLExpiryTest.java
+++ b/test/unit/org/apache/cassandra/db/compaction/TTLExpiryTest.java
@@ -29,15 +29,8 @@ import org.junit.runner.RunWith;
 import org.apache.cassandra.OrderedJUnit4ClassRunner;
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.Util;
-import org.apache.cassandra.db.ColumnFamilyStore;
-import org.apache.cassandra.db.DataRange;
-import org.apache.cassandra.db.DecoratedKey;
-import org.apache.cassandra.db.Keyspace;
-import org.apache.cassandra.db.RowMutation;
-import org.apache.cassandra.db.RowPosition;
-import org.apache.cassandra.db.columniterator.IdentityQueryFilter;
+import org.apache.cassandra.db.*;
 import org.apache.cassandra.db.columniterator.OnDiskAtomIterator;
-import org.apache.cassandra.db.filter.QueryFilter;
 import org.apache.cassandra.io.sstable.SSTableReader;
 import org.apache.cassandra.io.sstable.SSTableScanner;
 import org.apache.cassandra.utils.ByteBufferUtil;
@@ -54,7 +47,7 @@ public class TTLExpiryTest extends SchemaLoader
         cfs.disableAutoCompaction();
         cfs.metadata.gcGraceSeconds(0);
         long timestamp = System.currentTimeMillis();
-        RowMutation rm = new RowMutation("Keyspace1", Util.dk("ttl").key);
+        Mutation rm = new Mutation("Keyspace1", Util.dk("ttl").key);
         rm.add("Standard1", Util.cellname("col"),
                ByteBufferUtil.EMPTY_BYTE_BUFFER,
                timestamp,
@@ -67,21 +60,21 @@ public class TTLExpiryTest extends SchemaLoader
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation("Keyspace1", Util.dk("ttl").key);
+        rm = new Mutation("Keyspace1", Util.dk("ttl").key);
                 rm.add("Standard1", Util.cellname("col2"),
                        ByteBufferUtil.EMPTY_BYTE_BUFFER,
                        timestamp,
                        1);
                 rm.apply();
         cfs.forceBlockingFlush();
-        rm = new RowMutation("Keyspace1", Util.dk("ttl").key);
+        rm = new Mutation("Keyspace1", Util.dk("ttl").key);
         rm.add("Standard1", Util.cellname("col3"),
                    ByteBufferUtil.EMPTY_BYTE_BUFFER,
                    timestamp,
                    1);
         rm.apply();
         cfs.forceBlockingFlush();
-        rm = new RowMutation("Keyspace1", Util.dk("ttl").key);
+        rm = new Mutation("Keyspace1", Util.dk("ttl").key);
         rm.add("Standard1", Util.cellname("col311"),
                    ByteBufferUtil.EMPTY_BYTE_BUFFER,
                    timestamp,
@@ -102,7 +95,7 @@ public class TTLExpiryTest extends SchemaLoader
         cfs.disableAutoCompaction();
         cfs.metadata.gcGraceSeconds(0);
         long timestamp = System.currentTimeMillis();
-        RowMutation rm = new RowMutation("Keyspace1", Util.dk("ttl").key);
+        Mutation rm = new Mutation("Keyspace1", Util.dk("ttl").key);
         rm.add("Standard1", Util.cellname("col"),
                ByteBufferUtil.EMPTY_BYTE_BUFFER,
                timestamp,
@@ -115,14 +108,14 @@ public class TTLExpiryTest extends SchemaLoader
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation("Keyspace1", Util.dk("ttl").key);
+        rm = new Mutation("Keyspace1", Util.dk("ttl").key);
                 rm.add("Standard1", Util.cellname("col2"),
                        ByteBufferUtil.EMPTY_BYTE_BUFFER,
                        timestamp,
                        1);
                 rm.apply();
         cfs.forceBlockingFlush();
-        rm = new RowMutation("Keyspace1", Util.dk("ttl").key);
+        rm = new Mutation("Keyspace1", Util.dk("ttl").key);
         rm.add("Standard1", Util.cellname("col3"),
                    ByteBufferUtil.EMPTY_BYTE_BUFFER,
                    timestamp,
@@ -130,7 +123,7 @@ public class TTLExpiryTest extends SchemaLoader
         rm.apply();
         cfs.forceBlockingFlush();
         DecoratedKey noTTLKey = Util.dk("nottl");
-        rm = new RowMutation("Keyspace1", noTTLKey.key);
+        rm = new Mutation("Keyspace1", noTTLKey.key);
         rm.add("Standard1", Util.cellname("col311"),
                    ByteBufferUtil.EMPTY_BYTE_BUFFER,
                    timestamp);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/index/PerRowSecondaryIndexTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/index/PerRowSecondaryIndexTest.java b/test/unit/org/apache/cassandra/db/index/PerRowSecondaryIndexTest.java
index a4fb875..03f5860 100644
--- a/test/unit/org/apache/cassandra/db/index/PerRowSecondaryIndexTest.java
+++ b/test/unit/org/apache/cassandra/db/index/PerRowSecondaryIndexTest.java
@@ -58,8 +58,8 @@ public class PerRowSecondaryIndexTest extends SchemaLoader
     public void testIndexInsertAndUpdate() throws IOException
     {
         // create a row then test that the configured index instance was able to read the row
-        RowMutation rm;
-        rm = new RowMutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k1"));
+        Mutation rm;
+        rm = new Mutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", Util.cellname("indexed"), ByteBufferUtil.bytes("foo"), 1);
         rm.apply();
 
@@ -68,7 +68,7 @@ public class PerRowSecondaryIndexTest extends SchemaLoader
         assertEquals(ByteBufferUtil.bytes("foo"), indexedRow.getColumn(Util.cellname("indexed")).value());
 
         // update the row and verify what was indexed
-        rm = new RowMutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", Util.cellname("indexed"), ByteBufferUtil.bytes("bar"), 2);
         rm.apply();
 
@@ -82,8 +82,8 @@ public class PerRowSecondaryIndexTest extends SchemaLoader
     public void testColumnDelete() throws IOException
     {
         // issue a column delete and test that the configured index instance was notified to update
-        RowMutation rm;
-        rm = new RowMutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k2"));
+        Mutation rm;
+        rm = new Mutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k2"));
         rm.delete("Indexed1", Util.cellname("indexed"), 1);
         rm.apply();
 
@@ -101,8 +101,8 @@ public class PerRowSecondaryIndexTest extends SchemaLoader
     public void testRowDelete() throws IOException
     {
         // issue a row level delete and test that the configured index instance was notified to update
-        RowMutation rm;
-        rm = new RowMutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k3"));
+        Mutation rm;
+        rm = new Mutation("PerRowSecondaryIndex", ByteBufferUtil.bytes("k3"));
         rm.delete("Indexed1", 1);
         rm.apply();
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/marshal/CompositeTypeTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/marshal/CompositeTypeTest.java b/test/unit/org/apache/cassandra/db/marshal/CompositeTypeTest.java
index ac85ccf..f606780 100644
--- a/test/unit/org/apache/cassandra/db/marshal/CompositeTypeTest.java
+++ b/test/unit/org/apache/cassandra/db/marshal/CompositeTypeTest.java
@@ -174,7 +174,7 @@ public class CompositeTypeTest extends SchemaLoader
         ByteBuffer cname5 = createCompositeKey("test2", uuids[1], 42, false);
 
         ByteBuffer key = ByteBufferUtil.bytes("k");
-        RowMutation rm = new RowMutation("Keyspace1", key);
+        Mutation rm = new Mutation("Keyspace1", key);
         addColumn(rm, cname5);
         addColumn(rm, cname1);
         addColumn(rm, cname4);
@@ -256,7 +256,7 @@ public class CompositeTypeTest extends SchemaLoader
         }
     }
 
-    private void addColumn(RowMutation rm, ByteBuffer cname)
+    private void addColumn(Mutation rm, ByteBuffer cname)
     {
         rm.add(cfName, CellNames.simpleDense(cname), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
     }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/marshal/DynamicCompositeTypeTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/marshal/DynamicCompositeTypeTest.java b/test/unit/org/apache/cassandra/db/marshal/DynamicCompositeTypeTest.java
index 15b7650..26d2e62 100644
--- a/test/unit/org/apache/cassandra/db/marshal/DynamicCompositeTypeTest.java
+++ b/test/unit/org/apache/cassandra/db/marshal/DynamicCompositeTypeTest.java
@@ -173,7 +173,7 @@ public class DynamicCompositeTypeTest extends SchemaLoader
         ByteBuffer cname5 = createDynamicCompositeKey("test2", uuids[1], 42, false);
 
         ByteBuffer key = ByteBufferUtil.bytes("k");
-        RowMutation rm = new RowMutation("Keyspace1", key);
+        Mutation rm = new Mutation("Keyspace1", key);
         addColumn(rm, cname5);
         addColumn(rm, cname1);
         addColumn(rm, cname4);
@@ -230,7 +230,7 @@ public class DynamicCompositeTypeTest extends SchemaLoader
         assert !TypeParser.parse("DynamicCompositeType(a => BytesType)").isCompatibleWith(TypeParser.parse("DynamicCompositeType(a => BytesType, b => AsciiType)"));
     }
 
-    private void addColumn(RowMutation rm, ByteBuffer cname)
+    private void addColumn(Mutation rm, ByteBuffer cname)
     {
         rm.add(cfName, CellNames.simpleDense(cname), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
     }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/io/sstable/IndexSummaryManagerTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/io/sstable/IndexSummaryManagerTest.java b/test/unit/org/apache/cassandra/io/sstable/IndexSummaryManagerTest.java
index 1c86216..994a846 100644
--- a/test/unit/org/apache/cassandra/io/sstable/IndexSummaryManagerTest.java
+++ b/test/unit/org/apache/cassandra/io/sstable/IndexSummaryManagerTest.java
@@ -110,7 +110,7 @@ public class IndexSummaryManagerTest extends SchemaLoader
             for (int row = 0; row < numRows; row++)
             {
                 DecoratedKey key = Util.dk(String.valueOf(row));
-                RowMutation rm = new RowMutation(ksname, key.key);
+                Mutation rm = new Mutation(ksname, key.key);
                 rm.add(cfname, Util.cellname("column"), value, 0);
                 rm.apply();
             }
@@ -244,7 +244,7 @@ public class IndexSummaryManagerTest extends SchemaLoader
         for (int row = 0; row < numRows; row++)
         {
             DecoratedKey key = Util.dk(String.valueOf(row));
-            RowMutation rm = new RowMutation(ksname, key.key);
+            Mutation rm = new Mutation(ksname, key.key);
             rm.add(cfname, Util.cellname("column"), value, 0);
             rm.apply();
         }
@@ -304,7 +304,7 @@ public class IndexSummaryManagerTest extends SchemaLoader
             for (int row = 0; row < numRows; row++)
             {
                 DecoratedKey key = Util.dk(String.valueOf(row));
-                RowMutation rm = new RowMutation(ksname, key.key);
+                Mutation rm = new Mutation(ksname, key.key);
                 rm.add(cfname, Util.cellname("column"), value, 0);
                 rm.apply();
             }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/io/sstable/SSTableMetadataTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/io/sstable/SSTableMetadataTest.java b/test/unit/org/apache/cassandra/io/sstable/SSTableMetadataTest.java
index cf44573..5c801c6 100644
--- a/test/unit/org/apache/cassandra/io/sstable/SSTableMetadataTest.java
+++ b/test/unit/org/apache/cassandra/io/sstable/SSTableMetadataTest.java
@@ -32,9 +32,6 @@ import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.Util;
 import org.apache.cassandra.db.*;
 import org.apache.cassandra.db.composites.*;
-import org.apache.cassandra.db.marshal.BytesType;
-import org.apache.cassandra.db.marshal.CompositeType;
-import org.apache.cassandra.db.marshal.IntegerType;
 import org.apache.cassandra.utils.ByteBufferUtil;
 
 import static org.junit.Assert.assertEquals;
@@ -51,7 +48,7 @@ public class SSTableMetadataTest extends SchemaLoader
         for(int i = 0; i < 10; i++)
         {
             DecoratedKey key = Util.dk(Integer.toString(i));
-            RowMutation rm = new RowMutation("Keyspace1", key.key);
+            Mutation rm = new Mutation("Keyspace1", key.key);
             for (int j = 0; j < 10; j++)
                 rm.add("Standard1", Util.cellname(Integer.toString(j)),
                        ByteBufferUtil.EMPTY_BYTE_BUFFER,
@@ -59,7 +56,7 @@ public class SSTableMetadataTest extends SchemaLoader
                        10 + j);
             rm.apply();
         }
-        RowMutation rm = new RowMutation("Keyspace1", Util.dk("longttl").key);
+        Mutation rm = new Mutation("Keyspace1", Util.dk("longttl").key);
         rm.add("Standard1", Util.cellname("col"),
                ByteBufferUtil.EMPTY_BYTE_BUFFER,
                timestamp,
@@ -75,7 +72,7 @@ public class SSTableMetadataTest extends SchemaLoader
             assertEquals(ttltimestamp + 10000, firstDelTime, 10);
 
         }
-        rm = new RowMutation("Keyspace1", Util.dk("longttl2").key);
+        rm = new Mutation("Keyspace1", Util.dk("longttl2").key);
         rm.add("Standard1", Util.cellname("col"),
                ByteBufferUtil.EMPTY_BYTE_BUFFER,
                timestamp,
@@ -122,7 +119,7 @@ public class SSTableMetadataTest extends SchemaLoader
         ColumnFamilyStore store = keyspace.getColumnFamilyStore("Standard2");
         long timestamp = System.currentTimeMillis();
         DecoratedKey key = Util.dk("deletetest");
-        RowMutation rm = new RowMutation("Keyspace1", key.key);
+        Mutation rm = new Mutation("Keyspace1", key.key);
         for (int i = 0; i<5; i++)
             rm.add("Standard2", Util.cellname("deletecolumn"+i),
                        ByteBufferUtil.EMPTY_BYTE_BUFFER,
@@ -142,7 +139,7 @@ public class SSTableMetadataTest extends SchemaLoader
             firstMaxDelTime = sstable.getSSTableMetadata().maxLocalDeletionTime;
             assertEquals(ttltimestamp + 1000, firstMaxDelTime, 10);
         }
-        rm = new RowMutation("Keyspace1", key.key);
+        rm = new Mutation("Keyspace1", key.key);
         rm.delete("Standard2", Util.cellname("todelete"), timestamp + 1);
         rm.apply();
         store.forceBlockingFlush();
@@ -174,7 +171,7 @@ public class SSTableMetadataTest extends SchemaLoader
         for (int j = 0; j < 8; j++)
         {
             DecoratedKey key = Util.dk("row"+j);
-            RowMutation rm = new RowMutation("Keyspace1", key.key);
+            Mutation rm = new Mutation("Keyspace1", key.key);
             for (int i = 100; i<150; i++)
             {
                 rm.add("Standard3", Util.cellname(j+"col"+i), ByteBufferUtil.EMPTY_BYTE_BUFFER, System.currentTimeMillis());
@@ -189,7 +186,7 @@ public class SSTableMetadataTest extends SchemaLoader
             assertEquals(ByteBufferUtil.string(sstable.getSSTableMetadata().maxColumnNames.get(0)), "7col149");
         }
         DecoratedKey key = Util.dk("row2");
-        RowMutation rm = new RowMutation("Keyspace1", key.key);
+        Mutation rm = new Mutation("Keyspace1", key.key);
         for (int i = 101; i<299; i++)
         {
             rm.add("Standard3", Util.cellname(9+"col"+i), ByteBufferUtil.EMPTY_BYTE_BUFFER, System.currentTimeMillis());
@@ -228,7 +225,7 @@ public class SSTableMetadataTest extends SchemaLoader
         ByteBuffer key = ByteBufferUtil.bytes("k");
         for (int i = 0; i < 10; i++)
         {
-            RowMutation rm = new RowMutation("Keyspace1", key);
+            Mutation rm = new Mutation("Keyspace1", key);
             CellName colName = type.makeCellName(ByteBufferUtil.bytes("a"+(9-i)), ByteBufferUtil.bytes(i));
             rm.add("StandardComposite2", colName, ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
             rm.apply();
@@ -238,7 +235,7 @@ public class SSTableMetadataTest extends SchemaLoader
         key = ByteBufferUtil.bytes("k2");
         for (int i = 0; i < 10; i++)
         {
-            RowMutation rm = new RowMutation("Keyspace1", key);
+            Mutation rm = new Mutation("Keyspace1", key);
             CellName colName = type.makeCellName(ByteBufferUtil.bytes("b"+(9-i)), ByteBufferUtil.bytes(i));
             rm.add("StandardComposite2", colName, ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
             rm.apply();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/io/sstable/SSTableReaderTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/io/sstable/SSTableReaderTest.java b/test/unit/org/apache/cassandra/io/sstable/SSTableReaderTest.java
index cf17e5f..4b05e17 100644
--- a/test/unit/org/apache/cassandra/io/sstable/SSTableReaderTest.java
+++ b/test/unit/org/apache/cassandra/io/sstable/SSTableReaderTest.java
@@ -86,7 +86,7 @@ public class SSTableReaderTest extends SchemaLoader
         for (int j = 0; j < 10; j++)
         {
             ByteBuffer key = ByteBufferUtil.bytes(String.valueOf(j));
-            RowMutation rm = new RowMutation("Keyspace1", key);
+            Mutation rm = new Mutation("Keyspace1", key);
             rm.add("Standard2", cellname("0"), ByteBufferUtil.EMPTY_BYTE_BUFFER, j);
             rm.apply();
         }
@@ -127,7 +127,7 @@ public class SSTableReaderTest extends SchemaLoader
         for (int j = 0; j < 100; j += 2)
         {
             ByteBuffer key = ByteBufferUtil.bytes(String.valueOf(j));
-            RowMutation rm = new RowMutation("Keyspace1", key);
+            Mutation rm = new Mutation("Keyspace1", key);
             rm.add("Standard1", cellname("0"), ByteBufferUtil.EMPTY_BYTE_BUFFER, j);
             rm.apply();
         }
@@ -162,7 +162,7 @@ public class SSTableReaderTest extends SchemaLoader
         for (int j = 0; j < 100; j += 2)
         {
             ByteBuffer key = ByteBufferUtil.bytes(String.valueOf(j));
-            RowMutation rm = new RowMutation("Keyspace1", key);
+            Mutation rm = new Mutation("Keyspace1", key);
             rm.add("Standard1", cellname("0"), ByteBufferUtil.EMPTY_BYTE_BUFFER, j);
             rm.apply();
         }
@@ -190,7 +190,7 @@ public class SSTableReaderTest extends SchemaLoader
         for (int j = 0; j < 10; j++)
         {
             ByteBuffer key = ByteBufferUtil.bytes(String.valueOf(j));
-            RowMutation rm = new RowMutation("Keyspace1", key);
+            Mutation rm = new Mutation("Keyspace1", key);
             rm.add("Standard2", cellname("0"), ByteBufferUtil.EMPTY_BYTE_BUFFER, j);
             rm.apply();
         }
@@ -219,7 +219,7 @@ public class SSTableReaderTest extends SchemaLoader
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore store = keyspace.getColumnFamilyStore("Indexed1");
         ByteBuffer key = ByteBufferUtil.bytes(String.valueOf("k1"));
-        RowMutation rm = new RowMutation("Keyspace1", key);
+        Mutation rm = new Mutation("Keyspace1", key);
         rm.add("Indexed1", cellname("birthdate"), ByteBufferUtil.bytes(1L), System.currentTimeMillis());
         rm.apply();
         store.forceBlockingFlush();
@@ -251,7 +251,7 @@ public class SSTableReaderTest extends SchemaLoader
                 lastKey = key;
             if (store.metadata.getKeyValidator().compare(lastKey.key, key.key) < 0)
                 lastKey = key;
-            RowMutation rm = new RowMutation(ks, key.key);
+            Mutation rm = new Mutation(ks, key.key);
             rm.add(cf, cellname("col"),
                    ByteBufferUtil.EMPTY_BYTE_BUFFER, timestamp);
             rm.apply();
@@ -275,7 +275,7 @@ public class SSTableReaderTest extends SchemaLoader
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore store = keyspace.getColumnFamilyStore("Indexed1");
         ByteBuffer key = ByteBufferUtil.bytes(String.valueOf("k1"));
-        RowMutation rm = new RowMutation("Keyspace1", key);
+        Mutation rm = new Mutation("Keyspace1", key);
         rm.add("Indexed1", cellname("birthdate"), ByteBufferUtil.bytes(1L), System.currentTimeMillis());
         rm.apply();
         store.forceBlockingFlush();
@@ -302,7 +302,7 @@ public class SSTableReaderTest extends SchemaLoader
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore store = keyspace.getColumnFamilyStore("Standard1");
         ByteBuffer key = ByteBufferUtil.bytes(String.valueOf("k1"));
-        RowMutation rm = new RowMutation("Keyspace1", key);
+        Mutation rm = new Mutation("Keyspace1", key);
         rm.add("Standard1", cellname("xyz"), ByteBufferUtil.bytes("abc"), 0);
         rm.apply();
         store.forceBlockingFlush();
@@ -329,7 +329,7 @@ public class SSTableReaderTest extends SchemaLoader
         for (int j = 0; j < 130; j++)
         {
             ByteBuffer key = ByteBufferUtil.bytes(String.valueOf(j));
-            RowMutation rm = new RowMutation("Keyspace1", key);
+            Mutation rm = new Mutation("Keyspace1", key);
             rm.add("Standard2", cellname("0"), ByteBufferUtil.EMPTY_BYTE_BUFFER, j);
             rm.apply();
         }
@@ -363,7 +363,7 @@ public class SSTableReaderTest extends SchemaLoader
         for (int j = 0; j < NUM_ROWS; j++)
         {
             ByteBuffer key = ByteBufferUtil.bytes(String.format("%3d", j));
-            RowMutation rm = new RowMutation("Keyspace1", key);
+            Mutation rm = new Mutation("Keyspace1", key);
             rm.add("StandardLowIndexInterval", Util.cellname("0"), ByteBufferUtil.bytes(String.format("%3d", j)), j);
             rm.apply();
         }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/io/sstable/SSTableScannerTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/io/sstable/SSTableScannerTest.java b/test/unit/org/apache/cassandra/io/sstable/SSTableScannerTest.java
index 8f7f07b..b514c05 100644
--- a/test/unit/org/apache/cassandra/io/sstable/SSTableScannerTest.java
+++ b/test/unit/org/apache/cassandra/io/sstable/SSTableScannerTest.java
@@ -71,7 +71,7 @@ public class SSTableScannerTest extends SchemaLoader
     {
         long timestamp = System.currentTimeMillis();
         DecoratedKey decoratedKey = Util.dk(toKey(key));
-        RowMutation rm = new RowMutation(KEYSPACE, decoratedKey.key);
+        Mutation rm = new Mutation(KEYSPACE, decoratedKey.key);
         rm.add(TABLE, Util.cellname("col"), ByteBufferUtil.EMPTY_BYTE_BUFFER, timestamp, 1000);
         rm.apply();
     }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/service/AntiEntropyServiceCounterTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/service/AntiEntropyServiceCounterTest.java b/test/unit/org/apache/cassandra/service/AntiEntropyServiceCounterTest.java
index b33f208..4a82183 100644
--- a/test/unit/org/apache/cassandra/service/AntiEntropyServiceCounterTest.java
+++ b/test/unit/org/apache/cassandra/service/AntiEntropyServiceCounterTest.java
@@ -39,7 +39,7 @@ public class AntiEntropyServiceCounterTest extends AntiEntropyServiceTestAbstrac
     public List<IMutation> getWriteData()
     {
         List<IMutation> rms = new LinkedList<IMutation>();
-        RowMutation rm = new RowMutation(keyspaceName, ByteBufferUtil.bytes("key1"));
+        Mutation rm = new Mutation(keyspaceName, ByteBufferUtil.bytes("key1"));
         rm.addCounter(cfname, CellNames.simpleDense(ByteBufferUtil.bytes("Column1")), 42);
         rms.add(new CounterMutation(rm, ConsistencyLevel.ONE));
         return rms;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/service/AntiEntropyServiceStandardTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/service/AntiEntropyServiceStandardTest.java b/test/unit/org/apache/cassandra/service/AntiEntropyServiceStandardTest.java
index 9cfe8f0..f4025cc 100644
--- a/test/unit/org/apache/cassandra/service/AntiEntropyServiceStandardTest.java
+++ b/test/unit/org/apache/cassandra/service/AntiEntropyServiceStandardTest.java
@@ -38,8 +38,8 @@ public class AntiEntropyServiceStandardTest extends AntiEntropyServiceTestAbstra
     public List<IMutation> getWriteData()
     {
         List<IMutation> rms = new LinkedList<IMutation>();
-        RowMutation rm;
-        rm = new RowMutation(keyspaceName, ByteBufferUtil.bytes("key1"));
+        Mutation rm;
+        rm = new Mutation(keyspaceName, ByteBufferUtil.bytes("key1"));
         rm.add(cfname, Util.cellname("Column1"), ByteBufferUtil.bytes("asdfasdf"), 0);
         rms.add(rm);
         return rms;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/service/QueryPagerTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/service/QueryPagerTest.java b/test/unit/org/apache/cassandra/service/QueryPagerTest.java
index 9e28fe6..318feb9 100644
--- a/test/unit/org/apache/cassandra/service/QueryPagerTest.java
+++ b/test/unit/org/apache/cassandra/service/QueryPagerTest.java
@@ -79,7 +79,7 @@ public class QueryPagerTest extends SchemaLoader
          */
         for (int i = 0; i < nbKeys; i++)
         {
-            RowMutation rm = new RowMutation(KS, bytes("k" + i));
+            Mutation rm = new Mutation(KS, bytes("k" + i));
             ColumnFamily cf = rm.addOrGet(CF);
 
             for (int j = 0; j < nbCols; j++)

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/streaming/StreamingTransferTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/streaming/StreamingTransferTest.java b/test/unit/org/apache/cassandra/streaming/StreamingTransferTest.java
index 412d9d0..8cf13bc 100644
--- a/test/unit/org/apache/cassandra/streaming/StreamingTransferTest.java
+++ b/test/unit/org/apache/cassandra/streaming/StreamingTransferTest.java
@@ -230,7 +230,7 @@ public class StreamingTransferTest extends SchemaLoader
                 ColumnFamily cf = TreeMapBackedSortedColumns.factory.create(keyspace.getName(), cfs.name);
                 cf.addColumn(column(col, "v", timestamp));
                 cf.addColumn(new Cell(cellname("birthdate"), ByteBufferUtil.bytes(val), timestamp));
-                RowMutation rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes(key), cf);
+                Mutation rm = new Mutation("Keyspace1", ByteBufferUtil.bytes(key), cf);
                 logger.debug("Applying row to transfer " + rm);
                 rm.apply();
             }
@@ -264,7 +264,7 @@ public class StreamingTransferTest extends SchemaLoader
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfname);
 
         String key = "key1";
-        RowMutation rm = new RowMutation(ks, ByteBufferUtil.bytes(key));
+        Mutation rm = new Mutation(ks, ByteBufferUtil.bytes(key));
         // add columns of size slightly less than column_index_size to force insert column index
         rm.add(cfname, cellname(1), ByteBuffer.wrap(new byte[DatabaseDescriptor.getColumnIndexSize() - 64]), 2);
         rm.add(cfname, cellname(6), ByteBuffer.wrap(new byte[DatabaseDescriptor.getColumnIndexSize()]), 2);
@@ -454,7 +454,7 @@ public class StreamingTransferTest extends SchemaLoader
                 ColumnFamily cf = TreeMapBackedSortedColumns.factory.create(keyspace.getName(), cfs.name);
                 cf.addColumn(column(colName, "value", timestamp));
                 cf.addColumn(new Cell(cellname("birthdate"), ByteBufferUtil.bytes(new Date(timestamp).toString()), timestamp));
-                RowMutation rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes(key), cf);
+                Mutation rm = new Mutation("Keyspace1", ByteBufferUtil.bytes(key), cf);
                 logger.debug("Applying row to transfer " + rm);
                 rm.apply();
             }


[4/4] git commit: Rename RowMutation->Mutation in preparation for Row->Partition

Posted by al...@apache.org.
Rename RowMutation->Mutation in preparation for Row->Partition


Project: http://git-wip-us.apache.org/repos/asf/cassandra/repo
Commit: http://git-wip-us.apache.org/repos/asf/cassandra/commit/6bbb13b9
Tree: http://git-wip-us.apache.org/repos/asf/cassandra/tree/6bbb13b9
Diff: http://git-wip-us.apache.org/repos/asf/cassandra/diff/6bbb13b9

Branch: refs/heads/trunk
Commit: 6bbb13b9b0fe62de2a2140055af2ea6968c73ccc
Parents: d753661
Author: Aleksey Yeschenko <al...@apache.org>
Authored: Sun Dec 22 00:37:43 2013 +0300
Committer: Aleksey Yeschenko <al...@apache.org>
Committed: Sun Dec 22 00:37:43 2013 +0300

----------------------------------------------------------------------
 .../cassandra/triggers/InvertedIndex.java       |  10 +-
 .../org/apache/cassandra/config/CFMetaData.java |  52 +--
 .../cassandra/config/ColumnDefinition.java      |  14 +-
 .../org/apache/cassandra/config/KSMetaData.java |  27 +-
 .../cassandra/config/TriggerDefinition.java     |  16 +-
 .../org/apache/cassandra/config/UTMetaData.java |  16 +-
 .../apache/cassandra/cql/DeleteStatement.java   |  22 +-
 .../apache/cassandra/cql/UpdateStatement.java   |  35 +-
 .../cql3/statements/ModificationStatement.java  |  10 +-
 .../apache/cassandra/db/BatchlogManager.java    |  22 +-
 .../cassandra/db/CollationController.java       |   4 +-
 .../org/apache/cassandra/db/CounterCell.java    |   6 +-
 .../apache/cassandra/db/CounterMutation.java    |  79 ++---
 .../db/DefinitionsUpdateVerbHandler.java        |   6 +-
 .../org/apache/cassandra/db/DefsTables.java     |   8 +-
 .../cassandra/db/HintedHandOffManager.java      |  36 +-
 src/java/org/apache/cassandra/db/Keyspace.java  |   4 +-
 .../db/MigrationRequestVerbHandler.java         |   8 +-
 src/java/org/apache/cassandra/db/Mutation.java  | 336 +++++++++++++++++++
 .../cassandra/db/MutationVerbHandler.java       |  85 +++++
 .../cassandra/db/ReadRepairVerbHandler.java     |   7 +-
 .../org/apache/cassandra/db/RowMutation.java    | 335 ------------------
 .../cassandra/db/RowMutationVerbHandler.java    |  87 -----
 .../org/apache/cassandra/db/SystemKeyspace.java |  33 +-
 .../cassandra/db/commitlog/CommitLog.java       |  13 +-
 .../db/commitlog/CommitLogReplayer.java         |  52 +--
 .../db/commitlog/CommitLogSegment.java          |  14 +-
 .../db/commitlog/CommitLogSegmentManager.java   |   9 +-
 .../apache/cassandra/net/MessagingService.java  |   8 +-
 .../cassandra/service/MigrationManager.java     |  32 +-
 .../apache/cassandra/service/MigrationTask.java |   6 +-
 .../cassandra/service/RowDataResolver.java      |   9 +-
 .../apache/cassandra/service/StorageProxy.java  |  58 ++--
 .../cassandra/service/StorageService.java       |   2 +-
 .../apache/cassandra/service/paxos/Commit.java  |  11 +-
 .../cassandra/service/paxos/PaxosState.java     |   6 +-
 .../org/apache/cassandra/sink/IRequestSink.java |   4 +-
 .../cassandra/thrift/CassandraServer.java       | 114 +++----
 .../apache/cassandra/tracing/TraceState.java    |   4 +-
 .../org/apache/cassandra/tracing/Tracing.java   |   6 +-
 .../org/apache/cassandra/triggers/ITrigger.java |   8 +-
 .../cassandra/triggers/TriggerExecutor.java     |  21 +-
 .../org/apache/cassandra/cli/CliHelp.yaml       |   4 +-
 .../apache/cassandra/db/LongKeyspaceTest.java   |   4 +-
 .../apache/cassandra/db/MeteredFlusherTest.java |   2 +-
 .../cassandra/db/commitlog/ComitLogStress.java  |   4 +-
 .../db/compaction/LongCompactionsTest.java      |   2 +-
 .../LongLeveledCompactionStrategyTest.java      |   8 +-
 .../unit/org/apache/cassandra/SchemaLoader.java |   7 +-
 test/unit/org/apache/cassandra/Util.java        |   4 +-
 .../apache/cassandra/config/CFMetaDataTest.java |   3 +-
 .../org/apache/cassandra/config/DefsTest.java   |  18 +-
 .../org/apache/cassandra/db/CleanupTest.java    |   4 +-
 .../cassandra/db/CollationControllerTest.java   |  19 +-
 .../cassandra/db/ColumnFamilyStoreTest.java     | 108 +++---
 .../org/apache/cassandra/db/CommitLogTest.java  |  10 +-
 .../cassandra/db/CounterMutationTest.java       |   8 +-
 .../apache/cassandra/db/HintedHandOffTest.java  |   2 +-
 .../org/apache/cassandra/db/KeyCacheTest.java   |   7 +-
 .../apache/cassandra/db/KeyCollisionTest.java   |   4 +-
 .../org/apache/cassandra/db/KeyspaceTest.java   |  30 +-
 .../org/apache/cassandra/db/MultitableTest.java |   6 +-
 .../org/apache/cassandra/db/NameSortTest.java   |   6 +-
 .../apache/cassandra/db/RangeTombstoneTest.java |  40 +--
 .../apache/cassandra/db/ReadMessageTest.java    |   8 +-
 .../cassandra/db/RecoveryManager2Test.java      |   2 +-
 .../cassandra/db/RecoveryManager3Test.java      |   6 +-
 .../cassandra/db/RecoveryManagerTest.java       |  12 +-
 .../db/RecoveryManagerTruncateTest.java         |   4 +-
 .../org/apache/cassandra/db/RemoveCellTest.java |   6 +-
 .../cassandra/db/RemoveColumnFamilyTest.java    |   6 +-
 .../db/RemoveColumnFamilyWithFlush1Test.java    |   6 +-
 .../db/RemoveColumnFamilyWithFlush2Test.java    |   6 +-
 .../apache/cassandra/db/RemoveSubCellTest.java  |  16 +-
 .../apache/cassandra/db/RowIterationTest.java   |   9 +-
 .../unit/org/apache/cassandra/db/ScrubTest.java |   4 +-
 .../apache/cassandra/db/SerializationsTest.java |  48 +--
 .../org/apache/cassandra/db/TimeSortTest.java   |  12 +-
 .../compaction/BlacklistingCompactionsTest.java |   7 +-
 .../db/compaction/CompactionsPurgeTest.java     |  54 ++-
 .../db/compaction/CompactionsTest.java          |  20 +-
 .../LeveledCompactionStrategyTest.java          |  14 +-
 .../db/compaction/OneCompactionTest.java        |   8 +-
 .../SizeTieredCompactionStrategyTest.java       |  10 +-
 .../cassandra/db/compaction/TTLExpiryTest.java  |  25 +-
 .../db/index/PerRowSecondaryIndexTest.java      |  14 +-
 .../cassandra/db/marshal/CompositeTypeTest.java |   4 +-
 .../db/marshal/DynamicCompositeTypeTest.java    |   4 +-
 .../io/sstable/IndexSummaryManagerTest.java     |   6 +-
 .../io/sstable/SSTableMetadataTest.java         |  21 +-
 .../cassandra/io/sstable/SSTableReaderTest.java |  20 +-
 .../io/sstable/SSTableScannerTest.java          |   2 +-
 .../service/AntiEntropyServiceCounterTest.java  |   2 +-
 .../service/AntiEntropyServiceStandardTest.java |   4 +-
 .../cassandra/service/QueryPagerTest.java       |   2 +-
 .../streaming/StreamingTransferTest.java        |   6 +-
 96 files changed, 1114 insertions(+), 1189 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/examples/triggers/src/org/apache/cassandra/triggers/InvertedIndex.java
----------------------------------------------------------------------
diff --git a/examples/triggers/src/org/apache/cassandra/triggers/InvertedIndex.java b/examples/triggers/src/org/apache/cassandra/triggers/InvertedIndex.java
index 2e1d4cc..8ebc46e 100644
--- a/examples/triggers/src/org/apache/cassandra/triggers/InvertedIndex.java
+++ b/examples/triggers/src/org/apache/cassandra/triggers/InvertedIndex.java
@@ -24,12 +24,12 @@ import java.util.Collection;
 import java.util.List;
 import java.util.Properties;
 
-import org.apache.cassandra.db.Cell;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import org.apache.cassandra.db.Cell;
 import org.apache.cassandra.db.ColumnFamily;
-import org.apache.cassandra.db.RowMutation;
+import org.apache.cassandra.db.Mutation;
 import org.apache.cassandra.io.util.FileUtils;
 
 public class InvertedIndex implements ITrigger
@@ -37,12 +37,12 @@ public class InvertedIndex implements ITrigger
     private static final Logger logger = LoggerFactory.getLogger(InvertedIndex.class);
     private Properties properties = loadProperties();
 
-    public Collection<RowMutation> augment(ByteBuffer key, ColumnFamily update)
+    public Collection<Mutation> augment(ByteBuffer key, ColumnFamily update)
     {
-        List<RowMutation> mutations = new ArrayList<>();
+        List<Mutation> mutations = new ArrayList<>();
         for (Cell cell : update)
         {
-            RowMutation mutation = new RowMutation(properties.getProperty("keyspace"), cell.value());
+            Mutation mutation = new Mutation(properties.getProperty("keyspace"), cell.value());
             mutation.add(properties.getProperty("columnfamily"), cell.name(), key, System.currentTimeMillis());
             mutations.add(mutation);
         }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/config/CFMetaData.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/config/CFMetaData.java b/src/java/org/apache/cassandra/config/CFMetaData.java
index 097f150..ddc839c 100644
--- a/src/java/org/apache/cassandra/config/CFMetaData.java
+++ b/src/java/org/apache/cassandra/config/CFMetaData.java
@@ -1022,7 +1022,7 @@ public final class CFMetaData
     /**
      * Create CFMetaData from thrift {@link CqlRow} that contains columns from schema_columnfamilies.
      *
-     * @param row CqlRow containing columns from schema_columnfamilies.
+     * @param cf CqlRow containing columns from schema_columnfamilies.
      * @return CFMetaData derived from CqlRow
      */
     public static CFMetaData fromThriftCqlRow(CqlRow cf, CqlResult columnsRes)
@@ -1476,11 +1476,11 @@ public final class CFMetaData
      *
      * @return Difference between attributes in form of schema mutation
      */
-    public RowMutation toSchemaUpdate(CFMetaData newState, long modificationTimestamp, boolean fromThrift)
+    public Mutation toSchemaUpdate(CFMetaData newState, long modificationTimestamp, boolean fromThrift)
     {
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(ksName));
+        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(ksName));
 
-        newState.toSchemaNoColumnsNoTriggers(rm, modificationTimestamp);
+        newState.toSchemaNoColumnsNoTriggers(mutation, modificationTimestamp);
 
         MapDifference<ByteBuffer, ColumnDefinition> columnDiff = Maps.difference(columnMetadata, newState.columnMetadata);
 
@@ -1492,31 +1492,31 @@ public final class CFMetaData
             if (fromThrift && cd.kind != ColumnDefinition.Kind.REGULAR)
                 continue;
 
-            cd.deleteFromSchema(rm, modificationTimestamp);
+            cd.deleteFromSchema(mutation, modificationTimestamp);
         }
 
         // newly added columns
         for (ColumnDefinition cd : columnDiff.entriesOnlyOnRight().values())
-            cd.toSchema(rm, modificationTimestamp);
+            cd.toSchema(mutation, modificationTimestamp);
 
         // old columns with updated attributes
         for (ByteBuffer name : columnDiff.entriesDiffering().keySet())
         {
             ColumnDefinition cd = newState.columnMetadata.get(name);
-            cd.toSchema(rm, modificationTimestamp);
+            cd.toSchema(mutation, modificationTimestamp);
         }
 
         MapDifference<String, TriggerDefinition> triggerDiff = Maps.difference(triggers, newState.triggers);
 
         // dropped triggers
         for (TriggerDefinition td : triggerDiff.entriesOnlyOnLeft().values())
-            td.deleteFromSchema(rm, cfName, modificationTimestamp);
+            td.deleteFromSchema(mutation, cfName, modificationTimestamp);
 
         // newly created triggers
         for (TriggerDefinition td : triggerDiff.entriesOnlyOnRight().values())
-            td.toSchema(rm, cfName, modificationTimestamp);
+            td.toSchema(mutation, cfName, modificationTimestamp);
 
-        return rm;
+        return mutation;
     }
 
     /**
@@ -1524,24 +1524,24 @@ public final class CFMetaData
      *
      * @param timestamp Timestamp to use
      *
-     * @return RowMutation to use to completely remove cf from schema
+     * @return Mutation to use to completely remove cf from schema
      */
-    public RowMutation dropFromSchema(long timestamp)
+    public Mutation dropFromSchema(long timestamp)
     {
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(ksName));
-        ColumnFamily cf = rm.addOrGet(SchemaColumnFamiliesCf);
+        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(ksName));
+        ColumnFamily cf = mutation.addOrGet(SchemaColumnFamiliesCf);
         int ldt = (int) (System.currentTimeMillis() / 1000);
 
         Composite prefix = SchemaColumnFamiliesCf.comparator.make(cfName);
         cf.addAtom(new RangeTombstone(prefix, prefix.end(), timestamp, ldt));
 
         for (ColumnDefinition cd : allColumns())
-            cd.deleteFromSchema(rm, timestamp);
+            cd.deleteFromSchema(mutation, timestamp);
 
         for (TriggerDefinition td : triggers.values())
-            td.deleteFromSchema(rm, cfName, timestamp);
+            td.deleteFromSchema(mutation, cfName, timestamp);
 
-        return rm;
+        return mutation;
     }
 
     public boolean isPurged()
@@ -1554,19 +1554,19 @@ public final class CFMetaData
         isPurged = true;
     }
 
-    public void toSchema(RowMutation rm, long timestamp)
+    public void toSchema(Mutation mutation, long timestamp)
     {
-        toSchemaNoColumnsNoTriggers(rm, timestamp);
+        toSchemaNoColumnsNoTriggers(mutation, timestamp);
 
         for (ColumnDefinition cd : allColumns())
-            cd.toSchema(rm, timestamp);
+            cd.toSchema(mutation, timestamp);
     }
 
-    private void toSchemaNoColumnsNoTriggers(RowMutation rm, long timestamp)
+    private void toSchemaNoColumnsNoTriggers(Mutation mutation, long timestamp)
     {
         // For property that can be null (and can be changed), we insert tombstones, to make sure
         // we don't keep a property the user has removed
-        ColumnFamily cf = rm.addOrGet(SchemaColumnFamiliesCf);
+        ColumnFamily cf = mutation.addOrGet(SchemaColumnFamiliesCf);
         Composite prefix = SchemaColumnFamiliesCf.comparator.make(cfName);
         CFRowAdder adder = new CFRowAdder(cf, prefix, timestamp);
 
@@ -1790,11 +1790,11 @@ public final class CFMetaData
      *
      * @throws ConfigurationException if any of the attributes didn't pass validation
      */
-    public RowMutation toSchema(long timestamp) throws ConfigurationException
+    public Mutation toSchema(long timestamp) throws ConfigurationException
     {
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(ksName));
-        toSchema(rm, timestamp);
-        return rm;
+        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(ksName));
+        toSchema(mutation, timestamp);
+        return mutation;
     }
 
     // The comparator to validate the definition name.

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/config/ColumnDefinition.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/config/ColumnDefinition.java b/src/java/org/apache/cassandra/config/ColumnDefinition.java
index f16a0a6..79f50bf 100644
--- a/src/java/org/apache/cassandra/config/ColumnDefinition.java
+++ b/src/java/org/apache/cassandra/config/ColumnDefinition.java
@@ -279,14 +279,14 @@ public class ColumnDefinition extends ColumnSpecification
     }
 
     /**
-     * Drop specified column from the schema using given row.
+     * Drop specified column from the schema using given mutation.
      *
-     * @param rm         The schema row mutation
-     * @param timestamp  The timestamp to use for column modification
+     * @param mutation  The schema mutation
+     * @param timestamp The timestamp to use for column modification
      */
-    public void deleteFromSchema(RowMutation rm, long timestamp)
+    public void deleteFromSchema(Mutation mutation, long timestamp)
     {
-        ColumnFamily cf = rm.addOrGet(CFMetaData.SchemaColumnsCf);
+        ColumnFamily cf = mutation.addOrGet(CFMetaData.SchemaColumnsCf);
         int ldt = (int) (System.currentTimeMillis() / 1000);
 
         // Note: we do want to use name.toString(), not name.bytes directly for backward compatibility (For CQL3, this won't make a difference).
@@ -294,9 +294,9 @@ public class ColumnDefinition extends ColumnSpecification
         cf.addAtom(new RangeTombstone(prefix, prefix.end(), timestamp, ldt));
     }
 
-    public void toSchema(RowMutation rm, long timestamp)
+    public void toSchema(Mutation mutation, long timestamp)
     {
-        ColumnFamily cf = rm.addOrGet(CFMetaData.SchemaColumnsCf);
+        ColumnFamily cf = mutation.addOrGet(CFMetaData.SchemaColumnsCf);
         Composite prefix = CFMetaData.SchemaColumnsCf.comparator.make(cfName, name.toString());
         CFRowAdder adder = new CFRowAdder(cf, prefix, timestamp);
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/config/KSMetaData.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/config/KSMetaData.java b/src/java/org/apache/cassandra/config/KSMetaData.java
index 3dfea03..c3fe641 100644
--- a/src/java/org/apache/cassandra/config/KSMetaData.java
+++ b/src/java/org/apache/cassandra/config/KSMetaData.java
@@ -194,7 +194,7 @@ public final class KSMetaData
         return ksdef;
     }
 
-    public RowMutation toSchemaUpdate(KSMetaData newState, long modificationTimestamp)
+    public Mutation toSchemaUpdate(KSMetaData newState, long modificationTimestamp)
     {
         return newState.toSchema(modificationTimestamp);
     }
@@ -226,21 +226,22 @@ public final class KSMetaData
         return fromSchema(ksDefRow, Collections.<CFMetaData>emptyList());
     }
 
-    public RowMutation dropFromSchema(long timestamp)
+    public Mutation dropFromSchema(long timestamp)
     {
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(name));
-        rm.delete(SystemKeyspace.SCHEMA_KEYSPACES_CF, timestamp);
-        rm.delete(SystemKeyspace.SCHEMA_COLUMNFAMILIES_CF, timestamp);
-        rm.delete(SystemKeyspace.SCHEMA_COLUMNS_CF, timestamp);
-        rm.delete(SystemKeyspace.SCHEMA_TRIGGERS_CF, timestamp);
+        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(name));
 
-        return rm;
+        mutation.delete(SystemKeyspace.SCHEMA_KEYSPACES_CF, timestamp);
+        mutation.delete(SystemKeyspace.SCHEMA_COLUMNFAMILIES_CF, timestamp);
+        mutation.delete(SystemKeyspace.SCHEMA_COLUMNS_CF, timestamp);
+        mutation.delete(SystemKeyspace.SCHEMA_TRIGGERS_CF, timestamp);
+
+        return mutation;
     }
 
-    public RowMutation toSchema(long timestamp)
+    public Mutation toSchema(long timestamp)
     {
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(name));
-        ColumnFamily cf = rm.addOrGet(CFMetaData.SchemaKeyspacesCf);
+        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, SystemKeyspace.getSchemaKSKey(name));
+        ColumnFamily cf = mutation.addOrGet(CFMetaData.SchemaKeyspacesCf);
         CFRowAdder adder = new CFRowAdder(cf, CFMetaData.SchemaKeyspacesCf.comparator.builder().build(), timestamp);
 
         adder.add("durable_writes", durableWrites);
@@ -248,9 +249,9 @@ public final class KSMetaData
         adder.add("strategy_options", json(strategyOptions));
 
         for (CFMetaData cfm : cfMetaData.values())
-            cfm.toSchema(rm, timestamp);
+            cfm.toSchema(mutation, timestamp);
 
-        return rm;
+        return mutation;
     }
 
     /**

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/config/TriggerDefinition.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/config/TriggerDefinition.java b/src/java/org/apache/cassandra/config/TriggerDefinition.java
index e1809eb..aaaf631 100644
--- a/src/java/org/apache/cassandra/config/TriggerDefinition.java
+++ b/src/java/org/apache/cassandra/config/TriggerDefinition.java
@@ -72,15 +72,15 @@ public class TriggerDefinition
     }
 
     /**
-     * Add specified trigger to the schema using given row.
+     * Add specified trigger to the schema using given mutation.
      *
-     * @param rm        The schema row mutation
+     * @param mutation  The schema mutation
      * @param cfName    The name of the parent ColumnFamily
      * @param timestamp The timestamp to use for the columns
      */
-    public void toSchema(RowMutation rm, String cfName, long timestamp)
+    public void toSchema(Mutation mutation, String cfName, long timestamp)
     {
-        ColumnFamily cf = rm.addOrGet(SystemKeyspace.SCHEMA_TRIGGERS_CF);
+        ColumnFamily cf = mutation.addOrGet(SystemKeyspace.SCHEMA_TRIGGERS_CF);
 
         CFMetaData cfm = CFMetaData.SchemaTriggersCf;
         Composite prefix = cfm.comparator.make(cfName, name);
@@ -90,15 +90,15 @@ public class TriggerDefinition
     }
 
     /**
-     * Drop specified trigger from the schema using given row.
+     * Drop specified trigger from the schema using given mutation.
      *
-     * @param rm        The schema row mutation
+     * @param mutation  The schema mutation
      * @param cfName    The name of the parent ColumnFamily
      * @param timestamp The timestamp to use for the tombstone
      */
-    public void deleteFromSchema(RowMutation rm, String cfName, long timestamp)
+    public void deleteFromSchema(Mutation mutation, String cfName, long timestamp)
     {
-        ColumnFamily cf = rm.addOrGet(SystemKeyspace.SCHEMA_TRIGGERS_CF);
+        ColumnFamily cf = mutation.addOrGet(SystemKeyspace.SCHEMA_TRIGGERS_CF);
         int ldt = (int) (System.currentTimeMillis() / 1000);
 
         Composite prefix = CFMetaData.SchemaTriggersCf.comparator.make(cfName, name);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/config/UTMetaData.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/config/UTMetaData.java b/src/java/org/apache/cassandra/config/UTMetaData.java
index f78e645..76f3999 100644
--- a/src/java/org/apache/cassandra/config/UTMetaData.java
+++ b/src/java/org/apache/cassandra/config/UTMetaData.java
@@ -83,10 +83,10 @@ public final class UTMetaData
         return fromSchema(result);
     }
 
-    public static RowMutation toSchema(UserType newType, long timestamp)
+    public static Mutation toSchema(UserType newType, long timestamp)
     {
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, newType.name);
-        ColumnFamily cf = rm.addOrGet(SystemKeyspace.SCHEMA_USER_TYPES_CF);
+        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, newType.name);
+        ColumnFamily cf = mutation.addOrGet(SystemKeyspace.SCHEMA_USER_TYPES_CF);
 
         CFMetaData cfm = CFMetaData.SchemaUserTypesCf;
         UpdateParameters params = new UpdateParameters(cfm, Collections.<ByteBuffer>emptyList(), timestamp, 0, null);
@@ -106,14 +106,14 @@ public final class UTMetaData
             throw new AssertionError();
         }
 
-        return rm;
+        return mutation;
     }
 
-    public static RowMutation dropFromSchema(UserType droppedType, long timestamp)
+    public static Mutation dropFromSchema(UserType droppedType, long timestamp)
     {
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, droppedType.name);
-        rm.delete(SystemKeyspace.SCHEMA_USER_TYPES_CF, timestamp);
-        return rm;
+        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, droppedType.name);
+        mutation.delete(SystemKeyspace.SCHEMA_USER_TYPES_CF, timestamp);
+        return mutation;
     }
 
     public void addAll(UTMetaData types)

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/cql/DeleteStatement.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/cql/DeleteStatement.java b/src/java/org/apache/cassandra/cql/DeleteStatement.java
index bcc63e1..71942e4 100644
--- a/src/java/org/apache/cassandra/cql/DeleteStatement.java
+++ b/src/java/org/apache/cassandra/cql/DeleteStatement.java
@@ -24,9 +24,9 @@ import java.util.List;
 import org.apache.cassandra.auth.Permission;
 import org.apache.cassandra.config.CFMetaData;
 import org.apache.cassandra.config.Schema;
+import org.apache.cassandra.db.Mutation;
 import org.apache.cassandra.db.composites.CellName;
 import org.apache.cassandra.db.IMutation;
-import org.apache.cassandra.db.RowMutation;
 import org.apache.cassandra.db.marshal.AbstractType;
 import org.apache.cassandra.exceptions.InvalidRequestException;
 import org.apache.cassandra.exceptions.UnauthorizedException;
@@ -76,27 +76,25 @@ public class DeleteStatement extends AbstractModification
         clientState.hasColumnFamilyAccess(keyspace, columnFamily, Permission.MODIFY);
         AbstractType<?> keyType = Schema.instance.getCFMetaData(keyspace, columnFamily).getKeyValidator();
 
-        List<IMutation> rowMutations = new ArrayList<IMutation>(keys.size());
+        List<IMutation> mutations = new ArrayList<IMutation>(keys.size());
 
         for (Term key : keys)
-        {
-            rowMutations.add(mutationForKey(key.getByteBuffer(keyType, variables), keyspace, timestamp, clientState, variables, metadata));
-        }
+            mutations.add(mutationForKey(key.getByteBuffer(keyType, variables), keyspace, timestamp, clientState, variables, metadata));
 
-        return rowMutations;
+        return mutations;
     }
 
-    public RowMutation mutationForKey(ByteBuffer key, String keyspace, Long timestamp, ThriftClientState clientState, List<ByteBuffer> variables, CFMetaData metadata)
+    public Mutation mutationForKey(ByteBuffer key, String keyspace, Long timestamp, ThriftClientState clientState, List<ByteBuffer> variables, CFMetaData metadata)
     throws InvalidRequestException
     {
-        RowMutation rm = new RowMutation(keyspace, key);
+        Mutation mutation = new Mutation(keyspace, key);
 
         QueryProcessor.validateKeyAlias(metadata, keyName);
 
         if (columns.size() < 1)
         {
-            // No columns, delete the row
-            rm.delete(columnFamily, (timestamp == null) ? getTimestamp(clientState) : timestamp);
+            // No columns, delete the partition
+            mutation.delete(columnFamily, (timestamp == null) ? getTimestamp(clientState) : timestamp);
         }
         else
         {
@@ -106,11 +104,11 @@ public class DeleteStatement extends AbstractModification
             {
                 CellName columnName = metadata.comparator.cellFromByteBuffer(column.getByteBuffer(at, variables));
                 validateColumnName(columnName);
-                rm.delete(columnFamily, columnName, (timestamp == null) ? getTimestamp(clientState) : timestamp);
+                mutation.delete(columnFamily, columnName, (timestamp == null) ? getTimestamp(clientState) : timestamp);
             }
         }
 
-        return rm;
+        return mutation;
     }
 
     public String toString()

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/cql/UpdateStatement.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/cql/UpdateStatement.java b/src/java/org/apache/cassandra/cql/UpdateStatement.java
index 446c5a2..16a0d76 100644
--- a/src/java/org/apache/cassandra/cql/UpdateStatement.java
+++ b/src/java/org/apache/cassandra/cql/UpdateStatement.java
@@ -23,12 +23,9 @@ import java.util.*;
 import org.apache.cassandra.auth.Permission;
 import org.apache.cassandra.config.CFMetaData;
 import org.apache.cassandra.config.Schema;
+import org.apache.cassandra.db.*;
 import org.apache.cassandra.db.composites.CellName;
 import org.apache.cassandra.db.composites.CellNameType;
-import org.apache.cassandra.db.CounterMutation;
-import org.apache.cassandra.db.ConsistencyLevel;
-import org.apache.cassandra.db.IMutation;
-import org.apache.cassandra.db.RowMutation;
 import org.apache.cassandra.db.marshal.AbstractType;
 import org.apache.cassandra.exceptions.InvalidRequestException;
 import org.apache.cassandra.exceptions.UnauthorizedException;
@@ -151,18 +148,16 @@ public class UpdateStatement extends AbstractModification
 
         clientState.hasColumnFamilyAccess(keyspace, columnFamily, Permission.MODIFY);
 
-        List<IMutation> rowMutations = new LinkedList<IMutation>();
+        List<IMutation> mutations = new LinkedList<>();
 
         for (Term key: keys)
-        {
-            rowMutations.add(mutationForKey(keyspace, key.getByteBuffer(getKeyType(keyspace),variables), metadata, timestamp, clientState, variables));
-        }
+            mutations.add(mutationForKey(keyspace, key.getByteBuffer(getKeyType(keyspace),variables), metadata, timestamp, clientState, variables));
 
-        return rowMutations;
+        return mutations;
     }
 
     /**
-     * Compute a row mutation for a single key
+     * Compute a mutation for a single key
      *
      *
      * @param keyspace working keyspace
@@ -171,7 +166,7 @@ public class UpdateStatement extends AbstractModification
      * @param timestamp global timestamp to use for every key mutation
      *
      * @param clientState
-     * @return row mutation
+     * @return mutation
      *
      * @throws InvalidRequestException on the wrong request
      */
@@ -182,9 +177,9 @@ public class UpdateStatement extends AbstractModification
         CellNameType comparator = metadata.comparator;
         AbstractType<?> at = comparator.asAbstractType();
 
-        // if true we need to wrap RowMutation into CounterMutation
+        // if true we need to wrap Mutation into CounterMutation
         boolean hasCounterColumn = false;
-        RowMutation rm = new RowMutation(keyspace, key);
+        Mutation mutation = new Mutation(keyspace, key);
 
         for (Map.Entry<Term, Operation> column : getColumns().entrySet())
         {
@@ -199,11 +194,11 @@ public class UpdateStatement extends AbstractModification
                 ByteBuffer colValue = op.a.getByteBuffer(metadata.getValueValidator(colName),variables);
 
                 validateColumn(metadata, colName, colValue);
-                rm.add(columnFamily,
-                       colName,
-                       colValue,
-                       (timestamp == null) ? getTimestamp(clientState) : timestamp,
-                       getTimeToLive());
+                mutation.add(columnFamily,
+                             colName,
+                             colValue,
+                             (timestamp == null) ? getTimestamp(clientState) : timestamp,
+                             getTimeToLive());
             }
             else
             {
@@ -224,11 +219,11 @@ public class UpdateStatement extends AbstractModification
                                                       op.b.getText()));
                 }
 
-                rm.addCounter(columnFamily, colName, value);
+                mutation.addCounter(columnFamily, colName, value);
             }
         }
 
-        return (hasCounterColumn) ? new CounterMutation(rm, getConsistencyLevel()) : rm;
+        return (hasCounterColumn) ? new CounterMutation(mutation, getConsistencyLevel()) : mutation;
     }
 
     public String getColumnFamily()

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/cql3/statements/ModificationStatement.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/cql3/statements/ModificationStatement.java b/src/java/org/apache/cassandra/cql3/statements/ModificationStatement.java
index a396ef4..d164816 100644
--- a/src/java/org/apache/cassandra/cql3/statements/ModificationStatement.java
+++ b/src/java/org/apache/cassandra/cql3/statements/ModificationStatement.java
@@ -516,18 +516,18 @@ public abstract class ModificationStatement implements CQLStatement, MeasurableF
 
     private IMutation makeMutation(ByteBuffer key, ColumnFamily cf, ConsistencyLevel cl, boolean isBatch)
     {
-        RowMutation rm;
+        Mutation mutation;
         if (isBatch)
         {
             // we might group other mutations together with this one later, so make it mutable
-            rm = new RowMutation(cfm.ksName, key);
-            rm.add(cf);
+            mutation = new Mutation(cfm.ksName, key);
+            mutation.add(cf);
         }
         else
         {
-            rm = new RowMutation(cfm.ksName, key, cf);
+            mutation = new Mutation(cfm.ksName, key, cf);
         }
-        return isCounter() ? new CounterMutation(rm, cl) : rm;
+        return isCounter() ? new CounterMutation(mutation, cl) : mutation;
     }
 
     private ColumnFamily buildConditions(ByteBuffer key, Composite clusteringPrefix, UpdateParameters params)

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/BatchlogManager.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/BatchlogManager.java b/src/java/org/apache/cassandra/db/BatchlogManager.java
index 24fb0c5..b103b69 100644
--- a/src/java/org/apache/cassandra/db/BatchlogManager.java
+++ b/src/java/org/apache/cassandra/db/BatchlogManager.java
@@ -35,7 +35,6 @@ import javax.management.ObjectName;
 
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
-import org.apache.cassandra.db.composites.CellName;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -44,6 +43,7 @@ import org.apache.cassandra.config.CFMetaData;
 import org.apache.cassandra.config.DatabaseDescriptor;
 import org.apache.cassandra.cql3.QueryProcessor;
 import org.apache.cassandra.cql3.UntypedResultSet;
+import org.apache.cassandra.db.composites.CellName;
 import org.apache.cassandra.db.compaction.CompactionManager;
 import org.apache.cassandra.db.marshal.LongType;
 import org.apache.cassandra.db.marshal.UUIDType;
@@ -121,21 +121,21 @@ public class BatchlogManager implements BatchlogManagerMBean
         batchlogTasks.execute(runnable);
     }
 
-    public static RowMutation getBatchlogMutationFor(Collection<RowMutation> mutations, UUID uuid)
+    public static Mutation getBatchlogMutationFor(Collection<Mutation> mutations, UUID uuid)
     {
         long timestamp = FBUtilities.timestampMicros();
         ByteBuffer writtenAt = LongType.instance.decompose(timestamp / 1000);
-        ByteBuffer data = serializeRowMutations(mutations);
+        ByteBuffer data = serializeMutations(mutations);
 
         ColumnFamily cf = ArrayBackedSortedColumns.factory.create(CFMetaData.BatchlogCf);
         cf.addColumn(new Cell(cellName(""), ByteBufferUtil.EMPTY_BYTE_BUFFER, timestamp));
         cf.addColumn(new Cell(cellName("data"), data, timestamp));
         cf.addColumn(new Cell(cellName("written_at"), writtenAt, timestamp));
 
-        return new RowMutation(Keyspace.SYSTEM_KS, UUIDType.instance.decompose(uuid), cf);
+        return new Mutation(Keyspace.SYSTEM_KS, UUIDType.instance.decompose(uuid), cf);
     }
 
-    private static ByteBuffer serializeRowMutations(Collection<RowMutation> mutations)
+    private static ByteBuffer serializeMutations(Collection<Mutation> mutations)
     {
         FastByteArrayOutputStream bos = new FastByteArrayOutputStream();
         DataOutputStream out = new DataOutputStream(bos);
@@ -143,8 +143,8 @@ public class BatchlogManager implements BatchlogManagerMBean
         try
         {
             out.writeInt(mutations.size());
-            for (RowMutation rm : mutations)
-                RowMutation.serializer.serialize(rm, out, VERSION);
+            for (Mutation mutation : mutations)
+                Mutation.serializer.serialize(mutation, out, VERSION);
         }
         catch (IOException e)
         {
@@ -204,14 +204,14 @@ public class BatchlogManager implements BatchlogManagerMBean
         DataInputStream in = new DataInputStream(ByteBufferUtil.inputStream(data));
         int size = in.readInt();
         for (int i = 0; i < size; i++)
-            replaySerializedMutation(RowMutation.serializer.deserialize(in, VERSION), writtenAt);
+            replaySerializedMutation(Mutation.serializer.deserialize(in, VERSION), writtenAt);
     }
 
     /*
      * We try to deliver the mutations to the replicas ourselves if they are alive and only resort to writing hints
      * when a replica is down or a write request times out.
      */
-    private void replaySerializedMutation(RowMutation mutation, long writtenAt)
+    private void replaySerializedMutation(Mutation mutation, long writtenAt)
     {
         int ttl = calculateHintTTL(mutation, writtenAt);
         if (ttl <= 0)
@@ -235,7 +235,7 @@ public class BatchlogManager implements BatchlogManagerMBean
             attemptDirectDelivery(mutation, writtenAt, liveEndpoints);
     }
 
-    private void attemptDirectDelivery(RowMutation mutation, long writtenAt, Set<InetAddress> endpoints)
+    private void attemptDirectDelivery(Mutation mutation, long writtenAt, Set<InetAddress> endpoints)
     {
         List<WriteResponseHandler> handlers = Lists.newArrayList();
         final CopyOnWriteArraySet<InetAddress> undelivered = new CopyOnWriteArraySet<InetAddress>(endpoints);
@@ -277,7 +277,7 @@ public class BatchlogManager implements BatchlogManagerMBean
 
     // calculate ttl for the mutation's hint (and reduce ttl by the time the mutation spent in the batchlog).
     // this ensures that deletes aren't "undone" by an old batch replay.
-    private int calculateHintTTL(RowMutation mutation, long writtenAt)
+    private int calculateHintTTL(Mutation mutation, long writtenAt)
     {
         return (int) ((HintedHandOffManager.calculateHintTTL(mutation) * 1000 - (System.currentTimeMillis() - writtenAt)) / 1000);
     }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/CollationController.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/CollationController.java b/src/java/org/apache/cassandra/db/CollationController.java
index c7c09bf..1f164a9 100644
--- a/src/java/org/apache/cassandra/db/CollationController.java
+++ b/src/java/org/apache/cassandra/db/CollationController.java
@@ -149,9 +149,9 @@ public class CollationController
                 && cfs.getCompactionStrategy() instanceof SizeTieredCompactionStrategy)
             {
                 Tracing.trace("Defragmenting requested data");
-                RowMutation rm = new RowMutation(cfs.keyspace.getName(), filter.key.key, returnCF.cloneMe());
+                Mutation mutation = new Mutation(cfs.keyspace.getName(), filter.key.key, returnCF.cloneMe());
                 // skipping commitlog and index updates is fine since we're just de-fragmenting existing data
-                Keyspace.open(rm.getKeyspaceName()).apply(rm, false, false);
+                Keyspace.open(mutation.getKeyspaceName()).apply(mutation, false, false);
             }
 
             // Caller is responsible for final removeDeletedCF.  This is important for cacheRow to work correctly:

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/CounterCell.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/CounterCell.java b/src/java/org/apache/cassandra/db/CounterCell.java
index 0391eb8..297ec73 100644
--- a/src/java/org/apache/cassandra/db/CounterCell.java
+++ b/src/java/org/apache/cassandra/db/CounterCell.java
@@ -349,12 +349,12 @@ public class CounterCell extends Cell
 
     private static void sendToOtherReplica(DecoratedKey key, ColumnFamily cf) throws RequestExecutionException
     {
-        RowMutation rm = new RowMutation(cf.metadata().ksName, key.key, cf);
+        Mutation mutation = new Mutation(cf.metadata().ksName, key.key, cf);
 
         final InetAddress local = FBUtilities.getBroadcastAddress();
         String localDataCenter = DatabaseDescriptor.getEndpointSnitch().getDatacenter(local);
 
-        StorageProxy.performWrite(rm, ConsistencyLevel.ANY, localDataCenter, new StorageProxy.WritePerformer()
+        StorageProxy.performWrite(mutation, ConsistencyLevel.ANY, localDataCenter, new StorageProxy.WritePerformer()
         {
             public void apply(IMutation mutation, Iterable<InetAddress> targets, AbstractWriteResponseHandler responseHandler, String localDataCenter, ConsistencyLevel consistency_level)
             throws OverloadedException
@@ -363,7 +363,7 @@ public class CounterCell extends Cell
                 Set<InetAddress> remotes = Sets.difference(ImmutableSet.copyOf(targets), ImmutableSet.of(local));
                 // Fake local response to be a good lad but we won't wait on the responseHandler
                 responseHandler.response(null);
-                StorageProxy.sendToHintedEndpoints((RowMutation) mutation, remotes, responseHandler, localDataCenter);
+                StorageProxy.sendToHintedEndpoints((Mutation) mutation, remotes, responseHandler, localDataCenter);
             }
         }, null, WriteType.SIMPLE);
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/CounterMutation.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/CounterMutation.java b/src/java/org/apache/cassandra/db/CounterMutation.java
index f0942e2..a07dd9b 100644
--- a/src/java/org/apache/cassandra/db/CounterMutation.java
+++ b/src/java/org/apache/cassandra/db/CounterMutation.java
@@ -42,38 +42,33 @@ public class CounterMutation implements IMutation
 {
     public static final CounterMutationSerializer serializer = new CounterMutationSerializer();
 
-    private final RowMutation rowMutation;
+    private final Mutation mutation;
     private final ConsistencyLevel consistency;
 
-    public CounterMutation(RowMutation rowMutation, ConsistencyLevel consistency)
+    public CounterMutation(Mutation mutation, ConsistencyLevel consistency)
     {
-        this.rowMutation = rowMutation;
+        this.mutation = mutation;
         this.consistency = consistency;
     }
 
     public String getKeyspaceName()
     {
-        return rowMutation.getKeyspaceName();
+        return mutation.getKeyspaceName();
     }
 
     public Collection<UUID> getColumnFamilyIds()
     {
-        return rowMutation.getColumnFamilyIds();
+        return mutation.getColumnFamilyIds();
     }
 
     public Collection<ColumnFamily> getColumnFamilies()
     {
-        return rowMutation.getColumnFamilies();
+        return mutation.getColumnFamilies();
     }
 
     public ByteBuffer key()
     {
-        return rowMutation.key();
-    }
-
-    public RowMutation rowMutation()
-    {
-        return rowMutation;
+        return mutation.key();
     }
 
     public ConsistencyLevel consistency()
@@ -81,19 +76,19 @@ public class CounterMutation implements IMutation
         return consistency;
     }
 
-    public RowMutation makeReplicationMutation()
+    public Mutation makeReplicationMutation()
     {
         List<ReadCommand> readCommands = new LinkedList<ReadCommand>();
         long timestamp = System.currentTimeMillis();
-        for (ColumnFamily columnFamily : rowMutation.getColumnFamilies())
+        for (ColumnFamily columnFamily : mutation.getColumnFamilies())
         {
             if (!columnFamily.metadata().getReplicateOnWrite())
                 continue;
-            addReadCommandFromColumnFamily(rowMutation.getKeyspaceName(), rowMutation.key(), columnFamily, timestamp, readCommands);
+            addReadCommandFromColumnFamily(mutation.getKeyspaceName(), mutation.key(), columnFamily, timestamp, readCommands);
         }
 
-        // create a replication RowMutation
-        RowMutation replicationMutation = new RowMutation(rowMutation.getKeyspaceName(), rowMutation.key());
+        // create a replication Mutation
+        Mutation replicationMutation = new Mutation(mutation.getKeyspaceName(), mutation.key());
         for (ReadCommand readCommand : readCommands)
         {
             Keyspace keyspace = Keyspace.open(readCommand.ksName);
@@ -121,7 +116,7 @@ public class CounterMutation implements IMutation
 
     public boolean shouldReplicateOnWrite()
     {
-        for (ColumnFamily cf : rowMutation.getColumnFamilies())
+        for (ColumnFamily cf : mutation.getColumnFamilies())
             if (cf.metadata().getReplicateOnWrite())
                 return true;
         return false;
@@ -130,10 +125,10 @@ public class CounterMutation implements IMutation
     public void apply()
     {
         // transform all CounterUpdateCell to CounterCell: accomplished by localCopy
-        RowMutation rm = new RowMutation(rowMutation.getKeyspaceName(), ByteBufferUtil.clone(rowMutation.key()));
-        Keyspace keyspace = Keyspace.open(rm.getKeyspaceName());
+        Mutation m = new Mutation(mutation.getKeyspaceName(), ByteBufferUtil.clone(mutation.key()));
+        Keyspace keyspace = Keyspace.open(m.getKeyspaceName());
 
-        for (ColumnFamily cf_ : rowMutation.getColumnFamilies())
+        for (ColumnFamily cf_ : mutation.getColumnFamilies())
         {
             ColumnFamily cf = cf_.cloneMeShallow();
             ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cf.id());
@@ -141,9 +136,9 @@ public class CounterMutation implements IMutation
             {
                 cf.addColumn(cell.localCopy(cfs), HeapAllocator.instance);
             }
-            rm.add(cf);
+            m.add(cf);
         }
-        rm.apply();
+        m.apply();
     }
 
     public void addAll(IMutation m)
@@ -152,7 +147,7 @@ public class CounterMutation implements IMutation
             throw new IllegalArgumentException();
 
         CounterMutation cm = (CounterMutation)m;
-        rowMutation.addAll(cm.rowMutation);
+        mutation.addAll(cm.mutation);
     }
 
     @Override
@@ -164,30 +159,30 @@ public class CounterMutation implements IMutation
     public String toString(boolean shallow)
     {
         StringBuilder buff = new StringBuilder("CounterMutation(");
-        buff.append(rowMutation.toString(shallow));
+        buff.append(mutation.toString(shallow));
         buff.append(", ").append(consistency.toString());
         return buff.append(")").toString();
     }
-}
 
-class CounterMutationSerializer implements IVersionedSerializer<CounterMutation>
-{
-    public void serialize(CounterMutation cm, DataOutput out, int version) throws IOException
+    public static class CounterMutationSerializer implements IVersionedSerializer<CounterMutation>
     {
-        RowMutation.serializer.serialize(cm.rowMutation(), out, version);
-        out.writeUTF(cm.consistency().name());
-    }
+        public void serialize(CounterMutation cm, DataOutput out, int version) throws IOException
+        {
+            Mutation.serializer.serialize(cm.mutation, out, version);
+            out.writeUTF(cm.consistency.name());
+        }
 
-    public CounterMutation deserialize(DataInput in, int version) throws IOException
-    {
-        RowMutation rm = RowMutation.serializer.deserialize(in, version);
-        ConsistencyLevel consistency = Enum.valueOf(ConsistencyLevel.class, in.readUTF());
-        return new CounterMutation(rm, consistency);
-    }
+        public CounterMutation deserialize(DataInput in, int version) throws IOException
+        {
+            Mutation m = Mutation.serializer.deserialize(in, version);
+            ConsistencyLevel consistency = Enum.valueOf(ConsistencyLevel.class, in.readUTF());
+            return new CounterMutation(m, consistency);
+        }
 
-    public long serializedSize(CounterMutation cm, int version)
-    {
-        return RowMutation.serializer.serializedSize(cm.rowMutation(), version)
-             + TypeSizes.NATIVE.sizeof(cm.consistency().name());
+        public long serializedSize(CounterMutation cm, int version)
+        {
+            return Mutation.serializer.serializedSize(cm.mutation, version)
+                    + TypeSizes.NATIVE.sizeof(cm.consistency.name());
+        }
     }
 }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/DefinitionsUpdateVerbHandler.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/DefinitionsUpdateVerbHandler.java b/src/java/org/apache/cassandra/db/DefinitionsUpdateVerbHandler.java
index cab094d..5cb62ed 100644
--- a/src/java/org/apache/cassandra/db/DefinitionsUpdateVerbHandler.java
+++ b/src/java/org/apache/cassandra/db/DefinitionsUpdateVerbHandler.java
@@ -32,13 +32,13 @@ import org.apache.cassandra.utils.WrappedRunnable;
  * Called when node receives updated schema state from the schema migration coordinator node.
  * Such happens when user makes local schema migration on one of the nodes in the ring
  * (which is going to act as coordinator) and that node sends (pushes) it's updated schema state
- * (in form of row mutations) to all the alive nodes in the cluster.
+ * (in form of mutations) to all the alive nodes in the cluster.
  */
-public class DefinitionsUpdateVerbHandler implements IVerbHandler<Collection<RowMutation>>
+public class DefinitionsUpdateVerbHandler implements IVerbHandler<Collection<Mutation>>
 {
     private static final Logger logger = LoggerFactory.getLogger(DefinitionsUpdateVerbHandler.class);
 
-    public void doVerb(final MessageIn<Collection<RowMutation>> message, int id)
+    public void doVerb(final MessageIn<Collection<Mutation>> message, int id)
     {
         logger.debug("Received schema mutation push from {}", message.from);
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/DefsTables.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/DefsTables.java b/src/java/org/apache/cassandra/db/DefsTables.java
index 693ef97..a9e1c74 100644
--- a/src/java/org/apache/cassandra/db/DefsTables.java
+++ b/src/java/org/apache/cassandra/db/DefsTables.java
@@ -37,11 +37,9 @@ import org.apache.cassandra.db.compaction.CompactionManager;
 import org.apache.cassandra.db.filter.QueryFilter;
 import org.apache.cassandra.db.marshal.AsciiType;
 import org.apache.cassandra.db.marshal.UserType;
-import org.apache.cassandra.db.marshal.UTF8Type;
 import org.apache.cassandra.exceptions.ConfigurationException;
 import org.apache.cassandra.service.MigrationManager;
 import org.apache.cassandra.service.StorageService;
-import org.apache.cassandra.utils.ByteBufferUtil;
 
 /**
  * SCHEMA_{KEYSPACES, COLUMNFAMILIES, COLUMNS}_CF are used to store Keyspace/ColumnFamily attributes to make schema
@@ -145,7 +143,7 @@ public class DefsTables
     }
 
     /**
-     * Merge remote schema in form of row mutations with local and mutate ks/cf metadata objects
+     * Merge remote schema in form of mutations with local and mutate ks/cf metadata objects
      * (which also involves fs operations on add/drop ks/cf)
      *
      * @param mutations the schema changes to apply
@@ -153,14 +151,14 @@ public class DefsTables
      * @throws ConfigurationException If one of metadata attributes has invalid value
      * @throws IOException If data was corrupted during transportation or failed to apply fs operations
      */
-    public static synchronized void mergeSchema(Collection<RowMutation> mutations) throws ConfigurationException, IOException
+    public static synchronized void mergeSchema(Collection<Mutation> mutations) throws ConfigurationException, IOException
     {
         // current state of the schema
         Map<DecoratedKey, ColumnFamily> oldKeyspaces = SystemKeyspace.getSchema(SystemKeyspace.SCHEMA_KEYSPACES_CF);
         Map<DecoratedKey, ColumnFamily> oldColumnFamilies = SystemKeyspace.getSchema(SystemKeyspace.SCHEMA_COLUMNFAMILIES_CF);
         List<Row> oldTypes = SystemKeyspace.serializedSchema(SystemKeyspace.SCHEMA_USER_TYPES_CF);
 
-        for (RowMutation mutation : mutations)
+        for (Mutation mutation : mutations)
             mutation.apply();
 
         if (!StorageService.instance.isClientMode())

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/HintedHandOffManager.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/HintedHandOffManager.java b/src/java/org/apache/cassandra/db/HintedHandOffManager.java
index 9b470e4..51a1822 100644
--- a/src/java/org/apache/cassandra/db/HintedHandOffManager.java
+++ b/src/java/org/apache/cassandra/db/HintedHandOffManager.java
@@ -121,7 +121,7 @@ public class HintedHandOffManager implements HintedHandOffManagerMBean
      * Returns a mutation representing a Hint to be sent to <code>targetId</code>
      * as soon as it becomes available again.
      */
-    public RowMutation hintFor(RowMutation mutation, int ttl, UUID targetId)
+    public Mutation hintFor(Mutation mutation, int ttl, UUID targetId)
     {
         assert ttl > 0;
 
@@ -135,18 +135,18 @@ public class HintedHandOffManager implements HintedHandOffManagerMBean
         UUID hintId = UUIDGen.getTimeUUID();
         // serialize the hint with id and version as a composite column name
         CellName name = CFMetaData.HintsCf.comparator.makeCellName(hintId, MessagingService.current_version);
-        ByteBuffer value = ByteBuffer.wrap(FBUtilities.serialize(mutation, RowMutation.serializer, MessagingService.current_version));
+        ByteBuffer value = ByteBuffer.wrap(FBUtilities.serialize(mutation, Mutation.serializer, MessagingService.current_version));
         ColumnFamily cf = ArrayBackedSortedColumns.factory.create(Schema.instance.getCFMetaData(Keyspace.SYSTEM_KS, SystemKeyspace.HINTS_CF));
         cf.addColumn(name, value, System.currentTimeMillis(), ttl);
-        return new RowMutation(Keyspace.SYSTEM_KS, UUIDType.instance.decompose(targetId), cf);
+        return new Mutation(Keyspace.SYSTEM_KS, UUIDType.instance.decompose(targetId), cf);
     }
 
     /*
-     * determine the TTL for the hint RowMutation
+     * determine the TTL for the hint Mutation
      * this is set at the smallest GCGraceSeconds for any of the CFs in the RM
      * this ensures that deletes aren't "undone" by delivery of an old hint
      */
-    public static int calculateHintTTL(RowMutation mutation)
+    public static int calculateHintTTL(Mutation mutation)
     {
         int ttl = maxHintTTL;
         for (ColumnFamily cf : mutation.getColumnFamilies())
@@ -181,9 +181,9 @@ public class HintedHandOffManager implements HintedHandOffManagerMBean
 
     private static void deleteHint(ByteBuffer tokenBytes, CellName columnName, long timestamp)
     {
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, tokenBytes);
-        rm.delete(SystemKeyspace.HINTS_CF, columnName, timestamp);
-        rm.applyUnsafe(); // don't bother with commitlog since we're going to flush as soon as we're done with delivery
+        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, tokenBytes);
+        mutation.delete(SystemKeyspace.HINTS_CF, columnName, timestamp);
+        mutation.applyUnsafe(); // don't bother with commitlog since we're going to flush as soon as we're done with delivery
     }
 
     public void deleteHintsForEndpoint(final String ipOrHostname)
@@ -206,8 +206,8 @@ public class HintedHandOffManager implements HintedHandOffManagerMBean
             return;
         UUID hostId = StorageService.instance.getTokenMetadata().getHostId(endpoint);
         ByteBuffer hostIdBytes = ByteBuffer.wrap(UUIDGen.decompose(hostId));
-        final RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, hostIdBytes);
-        rm.delete(SystemKeyspace.HINTS_CF, System.currentTimeMillis());
+        final Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, hostIdBytes);
+        mutation.delete(SystemKeyspace.HINTS_CF, System.currentTimeMillis());
 
         // execute asynchronously to avoid blocking caller (which may be processing gossip)
         Runnable runnable = new Runnable()
@@ -217,7 +217,7 @@ public class HintedHandOffManager implements HintedHandOffManagerMBean
                 try
                 {
                     logger.info("Deleting any stored hints for {}", endpoint);
-                    rm.apply();
+                    mutation.apply();
                     compact();
                 }
                 catch (Exception e)
@@ -384,10 +384,10 @@ public class HintedHandOffManager implements HintedHandOffManagerMBean
 
                 int version = Int32Type.instance.compose(hint.name().get(1));
                 DataInputStream in = new DataInputStream(ByteBufferUtil.inputStream(hint.value()));
-                RowMutation rm;
+                Mutation mutation;
                 try
                 {
-                    rm = RowMutation.serializer.deserialize(in, version);
+                    mutation = Mutation.serializer.deserialize(in, version);
                 }
                 catch (UnknownColumnFamilyException e)
                 {
@@ -401,12 +401,12 @@ public class HintedHandOffManager implements HintedHandOffManagerMBean
                 }
 
                 truncationTimesCache.clear();
-                for (UUID cfId : ImmutableSet.copyOf((rm.getColumnFamilyIds())))
+                for (UUID cfId : ImmutableSet.copyOf((mutation.getColumnFamilyIds())))
                 {
                     Long truncatedAt = truncationTimesCache.get(cfId);
                     if (truncatedAt == null)
                     {
-                        ColumnFamilyStore cfs = Keyspace.open(rm.getKeyspaceName()).getColumnFamilyStore(cfId);
+                        ColumnFamilyStore cfs = Keyspace.open(mutation.getKeyspaceName()).getColumnFamilyStore(cfId);
                         truncatedAt = cfs.getTruncationTime();
                         truncationTimesCache.put(cfId, truncatedAt);
                     }
@@ -414,17 +414,17 @@ public class HintedHandOffManager implements HintedHandOffManagerMBean
                     if (hint.maxTimestamp() < truncatedAt)
                     {
                         logger.debug("Skipping delivery of hint for truncated columnfamily {}", cfId);
-                        rm = rm.without(cfId);
+                        mutation = mutation.without(cfId);
                     }
                 }
 
-                if (rm.isEmpty())
+                if (mutation.isEmpty())
                 {
                     deleteHint(hostIdBytes, hint.name(), hint.maxTimestamp());
                     continue;
                 }
 
-                MessageOut<RowMutation> message = rm.createMessage();
+                MessageOut<Mutation> message = mutation.createMessage();
                 rateLimiter.acquire(message.serializedSize(MessagingService.current_version));
                 Runnable callback = new Runnable()
                 {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/Keyspace.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/Keyspace.java b/src/java/org/apache/cassandra/db/Keyspace.java
index 14bcca1..c380e45 100644
--- a/src/java/org/apache/cassandra/db/Keyspace.java
+++ b/src/java/org/apache/cassandra/db/Keyspace.java
@@ -328,7 +328,7 @@ public class Keyspace
         return new Row(filter.key, columnFamily);
     }
 
-    public void apply(RowMutation mutation, boolean writeCommitLog)
+    public void apply(Mutation mutation, boolean writeCommitLog)
     {
         apply(mutation, writeCommitLog, true);
     }
@@ -341,7 +341,7 @@ public class Keyspace
      * @param writeCommitLog false to disable commitlog append entirely
      * @param updateIndexes  false to disable index updates (used by CollationController "defragmenting")
      */
-    public void apply(RowMutation mutation, boolean writeCommitLog, boolean updateIndexes)
+    public void apply(Mutation mutation, boolean writeCommitLog, boolean updateIndexes)
     {
         // write the mutation to the commitlog and memtables
         Tracing.trace("Acquiring switchLock read lock");

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/MigrationRequestVerbHandler.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/MigrationRequestVerbHandler.java b/src/java/org/apache/cassandra/db/MigrationRequestVerbHandler.java
index 31a64a9..d4503ba 100644
--- a/src/java/org/apache/cassandra/db/MigrationRequestVerbHandler.java
+++ b/src/java/org/apache/cassandra/db/MigrationRequestVerbHandler.java
@@ -29,7 +29,7 @@ import org.apache.cassandra.net.MessagingService;
 import org.apache.cassandra.service.MigrationManager;
 
 /**
- * Sends it's current schema state in form of row mutations in reply to the remote node's request.
+ * Sends it's current schema state in form of mutations in reply to the remote node's request.
  * Such a request is made when one of the nodes, by means of Gossip, detects schema disagreement in the ring.
  */
 public class MigrationRequestVerbHandler implements IVerbHandler
@@ -39,9 +39,9 @@ public class MigrationRequestVerbHandler implements IVerbHandler
     public void doVerb(MessageIn message, int id)
     {
         logger.debug("Received migration request from {}.", message.from);
-        MessageOut<Collection<RowMutation>> response = new MessageOut<>(MessagingService.Verb.INTERNAL_RESPONSE,
-                                                                        SystemKeyspace.serializeSchema(),
-                                                                        MigrationManager.MigrationsSerializer.instance);
+        MessageOut<Collection<Mutation>> response = new MessageOut<>(MessagingService.Verb.INTERNAL_RESPONSE,
+                                                                     SystemKeyspace.serializeSchema(),
+                                                                     MigrationManager.MigrationsSerializer.instance);
         MessagingService.instance().sendReply(response, id, message.from);
     }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/Mutation.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/Mutation.java b/src/java/org/apache/cassandra/db/Mutation.java
new file mode 100644
index 0000000..d70d7f9
--- /dev/null
+++ b/src/java/org/apache/cassandra/db/Mutation.java
@@ -0,0 +1,336 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.cassandra.db;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.util.*;
+
+import org.apache.commons.lang3.StringUtils;
+
+import org.apache.cassandra.config.CFMetaData;
+import org.apache.cassandra.config.Schema;
+import org.apache.cassandra.db.composites.CellName;
+import org.apache.cassandra.db.composites.Composite;
+import org.apache.cassandra.io.IVersionedSerializer;
+import org.apache.cassandra.net.MessageOut;
+import org.apache.cassandra.net.MessagingService;
+import org.apache.cassandra.utils.ByteBufferUtil;
+
+// TODO convert this to a Builder pattern instead of encouraging M.add directly,
+// which is less-efficient since we have to keep a mutable HashMap around
+public class Mutation implements IMutation
+{
+    public static final MutationSerializer serializer = new MutationSerializer();
+
+    public static final String FORWARD_TO = "FWD_TO";
+    public static final String FORWARD_FROM = "FWD_FRM";
+
+    // todo this is redundant
+    // when we remove it, also restore SerializationsTest.testMutationRead to not regenerate new Mutations each test
+    private final String keyspaceName;
+
+    private final ByteBuffer key;
+    // map of column family id to mutations for that column family.
+    private final Map<UUID, ColumnFamily> modifications;
+
+    public Mutation(String keyspaceName, ByteBuffer key)
+    {
+        this(keyspaceName, key, new HashMap<UUID, ColumnFamily>());
+    }
+
+    public Mutation(String keyspaceName, ByteBuffer key, ColumnFamily cf)
+    {
+        this(keyspaceName, key, Collections.singletonMap(cf.id(), cf));
+    }
+
+    public Mutation(String keyspaceName, Row row)
+    {
+        this(keyspaceName, row.key.key, row.cf);
+    }
+
+    protected Mutation(String keyspaceName, ByteBuffer key, Map<UUID, ColumnFamily> modifications)
+    {
+        this.keyspaceName = keyspaceName;
+        this.key = key;
+        this.modifications = modifications;
+    }
+
+    public Mutation(ByteBuffer key, ColumnFamily cf)
+    {
+        this(cf.metadata().ksName, key, cf);
+    }
+
+    public String getKeyspaceName()
+    {
+        return keyspaceName;
+    }
+
+    public Collection<UUID> getColumnFamilyIds()
+    {
+        return modifications.keySet();
+    }
+
+    public ByteBuffer key()
+    {
+        return key;
+    }
+
+    public Collection<ColumnFamily> getColumnFamilies()
+    {
+        return modifications.values();
+    }
+
+    public ColumnFamily getColumnFamily(UUID cfId)
+    {
+        return modifications.get(cfId);
+    }
+
+    /*
+     * Specify a column family name and the corresponding column
+     * family object.
+     * param @ cf - column family name
+     * param @ columnFamily - the column family.
+     */
+    public void add(ColumnFamily columnFamily)
+    {
+        assert columnFamily != null;
+        ColumnFamily prev = modifications.put(columnFamily.id(), columnFamily);
+        if (prev != null)
+            // developer error
+            throw new IllegalArgumentException("ColumnFamily " + columnFamily + " already has modifications in this mutation: " + prev);
+    }
+
+    /**
+     * @return the ColumnFamily in this Mutation corresponding to @param cfName, creating an empty one if necessary.
+     */
+    public ColumnFamily addOrGet(String cfName)
+    {
+        return addOrGet(Schema.instance.getCFMetaData(keyspaceName, cfName));
+    }
+
+    public ColumnFamily addOrGet(CFMetaData cfm)
+    {
+        ColumnFamily cf = modifications.get(cfm.cfId);
+        if (cf == null)
+        {
+            cf = TreeMapBackedSortedColumns.factory.create(cfm);
+            modifications.put(cfm.cfId, cf);
+        }
+        return cf;
+    }
+
+    public boolean isEmpty()
+    {
+        return modifications.isEmpty();
+    }
+
+    public void add(String cfName, CellName name, ByteBuffer value, long timestamp, int timeToLive)
+    {
+        addOrGet(cfName).addColumn(name, value, timestamp, timeToLive);
+    }
+
+    public void addCounter(String cfName, CellName name, long value)
+    {
+        addOrGet(cfName).addCounter(name, value);
+    }
+
+    public void add(String cfName, CellName name, ByteBuffer value, long timestamp)
+    {
+        add(cfName, name, value, timestamp, 0);
+    }
+
+    public void delete(String cfName, long timestamp)
+    {
+        int localDeleteTime = (int) (System.currentTimeMillis() / 1000);
+        addOrGet(cfName).delete(new DeletionInfo(timestamp, localDeleteTime));
+    }
+
+    public void delete(String cfName, CellName name, long timestamp)
+    {
+        int localDeleteTime = (int) (System.currentTimeMillis() / 1000);
+        addOrGet(cfName).addTombstone(name, localDeleteTime, timestamp);
+    }
+
+    public void deleteRange(String cfName, Composite start, Composite end, long timestamp)
+    {
+        int localDeleteTime = (int) (System.currentTimeMillis() / 1000);
+        addOrGet(cfName).addAtom(new RangeTombstone(start, end, timestamp, localDeleteTime));
+    }
+
+    public void addAll(IMutation m)
+    {
+        if (!(m instanceof Mutation))
+            throw new IllegalArgumentException();
+
+        Mutation mutation = (Mutation)m;
+        if (!keyspaceName.equals(mutation.keyspaceName) || !key.equals(mutation.key))
+            throw new IllegalArgumentException();
+
+        for (Map.Entry<UUID, ColumnFamily> entry : mutation.modifications.entrySet())
+        {
+            // It's slighty faster to assume the key wasn't present and fix if
+            // not in the case where it wasn't there indeed.
+            ColumnFamily cf = modifications.put(entry.getKey(), entry.getValue());
+            if (cf != null)
+                entry.getValue().resolve(cf);
+        }
+    }
+
+    /*
+     * This is equivalent to calling commit. Applies the changes to
+     * to the keyspace that is obtained by calling Keyspace.open().
+     */
+    public void apply()
+    {
+        Keyspace ks = Keyspace.open(keyspaceName);
+        ks.apply(this, ks.metadata.durableWrites);
+    }
+
+    public void applyUnsafe()
+    {
+        Keyspace.open(keyspaceName).apply(this, false);
+    }
+
+    public MessageOut<Mutation> createMessage()
+    {
+        return createMessage(MessagingService.Verb.MUTATION);
+    }
+
+    public MessageOut<Mutation> createMessage(MessagingService.Verb verb)
+    {
+        return new MessageOut<>(verb, this, serializer);
+    }
+
+    public String toString()
+    {
+        return toString(false);
+    }
+
+    public String toString(boolean shallow)
+    {
+        StringBuilder buff = new StringBuilder("Mutation(");
+        buff.append("keyspace='").append(keyspaceName).append('\'');
+        buff.append(", key='").append(ByteBufferUtil.bytesToHex(key)).append('\'');
+        buff.append(", modifications=[");
+        if (shallow)
+        {
+            List<String> cfnames = new ArrayList<String>(modifications.size());
+            for (UUID cfid : modifications.keySet())
+            {
+                CFMetaData cfm = Schema.instance.getCFMetaData(cfid);
+                cfnames.add(cfm == null ? "-dropped-" : cfm.cfName);
+            }
+            buff.append(StringUtils.join(cfnames, ", "));
+        }
+        else
+            buff.append(StringUtils.join(modifications.values(), ", "));
+        return buff.append("])").toString();
+    }
+
+    public Mutation without(UUID cfId)
+    {
+        Mutation mutation = new Mutation(keyspaceName, key);
+        for (Map.Entry<UUID, ColumnFamily> entry : modifications.entrySet())
+            if (!entry.getKey().equals(cfId))
+                mutation.add(entry.getValue());
+        return mutation;
+    }
+
+    public static class MutationSerializer implements IVersionedSerializer<Mutation>
+    {
+        public void serialize(Mutation mutation, DataOutput out, int version) throws IOException
+        {
+            if (version < MessagingService.VERSION_20)
+                out.writeUTF(mutation.getKeyspaceName());
+
+            ByteBufferUtil.writeWithShortLength(mutation.key(), out);
+
+            /* serialize the modifications in the mutation */
+            int size = mutation.modifications.size();
+            out.writeInt(size);
+            assert size > 0;
+            for (Map.Entry<UUID, ColumnFamily> entry : mutation.modifications.entrySet())
+                ColumnFamily.serializer.serialize(entry.getValue(), out, version);
+        }
+
+        public Mutation deserialize(DataInput in, int version, ColumnSerializer.Flag flag) throws IOException
+        {
+            String keyspaceName = null; // will always be set from cf.metadata but javac isn't smart enough to see that
+            if (version < MessagingService.VERSION_20)
+                keyspaceName = in.readUTF();
+
+            ByteBuffer key = ByteBufferUtil.readWithShortLength(in);
+            int size = in.readInt();
+            assert size > 0;
+
+            Map<UUID, ColumnFamily> modifications;
+            if (size == 1)
+            {
+                ColumnFamily cf = deserializeOneCf(in, version, flag);
+                modifications = Collections.singletonMap(cf.id(), cf);
+                keyspaceName = cf.metadata().ksName;
+            }
+            else
+            {
+                modifications = new HashMap<UUID, ColumnFamily>();
+                for (int i = 0; i < size; ++i)
+                {
+                    ColumnFamily cf = deserializeOneCf(in, version, flag);
+                    modifications.put(cf.id(), cf);
+                    keyspaceName = cf.metadata().ksName;
+                }
+            }
+
+            return new Mutation(keyspaceName, key, modifications);
+        }
+
+        private ColumnFamily deserializeOneCf(DataInput in, int version, ColumnSerializer.Flag flag) throws IOException
+        {
+            ColumnFamily cf = ColumnFamily.serializer.deserialize(in, UnsortedColumns.factory, flag, version);
+            // We don't allow Mutation with null column family, so we should never get null back.
+            assert cf != null;
+            return cf;
+        }
+
+        public Mutation deserialize(DataInput in, int version) throws IOException
+        {
+            return deserialize(in, version, ColumnSerializer.Flag.FROM_REMOTE);
+        }
+
+        public long serializedSize(Mutation mutation, int version)
+        {
+            TypeSizes sizes = TypeSizes.NATIVE;
+            int size = 0;
+
+            if (version < MessagingService.VERSION_20)
+                size += sizes.sizeof(mutation.getKeyspaceName());
+
+            int keySize = mutation.key().remaining();
+            size += sizes.sizeof((short) keySize) + keySize;
+
+            size += sizes.sizeof(mutation.modifications.size());
+            for (Map.Entry<UUID,ColumnFamily> entry : mutation.modifications.entrySet())
+                size += ColumnFamily.serializer.serializedSize(entry.getValue(), TypeSizes.NATIVE, version);
+
+            return size;
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/MutationVerbHandler.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/MutationVerbHandler.java b/src/java/org/apache/cassandra/db/MutationVerbHandler.java
new file mode 100644
index 0000000..43ffeae
--- /dev/null
+++ b/src/java/org/apache/cassandra/db/MutationVerbHandler.java
@@ -0,0 +1,85 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.cassandra.db;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.net.InetAddress;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.apache.cassandra.io.util.FastByteArrayInputStream;
+import org.apache.cassandra.net.*;
+import org.apache.cassandra.tracing.Tracing;
+
+public class MutationVerbHandler implements IVerbHandler<Mutation>
+{
+    private static final Logger logger = LoggerFactory.getLogger(MutationVerbHandler.class);
+
+    public void doVerb(MessageIn<Mutation> message, int id)
+    {
+        try
+        {
+            // Check if there were any forwarding headers in this message
+            byte[] from = message.parameters.get(Mutation.FORWARD_FROM);
+            InetAddress replyTo;
+            if (from == null)
+            {
+                replyTo = message.from;
+                byte[] forwardBytes = message.parameters.get(Mutation.FORWARD_TO);
+                if (forwardBytes != null)
+                    forwardToLocalNodes(message.payload, message.verb, forwardBytes, message.from);
+            }
+            else
+            {
+                replyTo = InetAddress.getByAddress(from);
+            }
+
+            message.payload.apply();
+            WriteResponse response = new WriteResponse();
+            Tracing.trace("Enqueuing response to {}", replyTo);
+            MessagingService.instance().sendReply(response.createMessage(), id, replyTo);
+        }
+        catch (IOException e)
+        {
+            logger.error("Error in mutation", e);
+        }
+    }
+
+    /**
+     * Older version (< 1.0) will not send this message at all, hence we don't
+     * need to check the version of the data.
+     */
+    private void forwardToLocalNodes(Mutation mutation, MessagingService.Verb verb, byte[] forwardBytes, InetAddress from) throws IOException
+    {
+        DataInputStream in = new DataInputStream(new FastByteArrayInputStream(forwardBytes));
+        int size = in.readInt();
+
+        // tell the recipients who to send their ack to
+        MessageOut<Mutation> message = new MessageOut<>(verb, mutation, Mutation.serializer).withParameter(Mutation.FORWARD_FROM, from.getAddress());
+        // Send a message to each of the addresses on our Forward List
+        for (int i = 0; i < size; i++)
+        {
+            InetAddress address = CompactEndpointSerializationHelper.deserialize(in);
+            int id = in.readInt();
+            Tracing.trace("Enqueuing forwarded write to {}", address);
+            MessagingService.instance().sendOneWay(message, id, address);
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/ReadRepairVerbHandler.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/ReadRepairVerbHandler.java b/src/java/org/apache/cassandra/db/ReadRepairVerbHandler.java
index fca4938..849ac70 100644
--- a/src/java/org/apache/cassandra/db/ReadRepairVerbHandler.java
+++ b/src/java/org/apache/cassandra/db/ReadRepairVerbHandler.java
@@ -21,12 +21,11 @@ import org.apache.cassandra.net.IVerbHandler;
 import org.apache.cassandra.net.MessageIn;
 import org.apache.cassandra.net.MessagingService;
 
-public class ReadRepairVerbHandler implements IVerbHandler<RowMutation>
+public class ReadRepairVerbHandler implements IVerbHandler<Mutation>
 {
-    public void doVerb(MessageIn<RowMutation> message, int id)
+    public void doVerb(MessageIn<Mutation> message, int id)
     {
-        RowMutation rm = message.payload;
-        rm.apply();
+        message.payload.apply();
         WriteResponse response = new WriteResponse();
         MessagingService.instance().sendReply(response.createMessage(), id, message.from);
     }


[3/4] Rename RowMutation->Mutation in preparation for Row->Partition

Posted by al...@apache.org.
http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/RowMutation.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/RowMutation.java b/src/java/org/apache/cassandra/db/RowMutation.java
deleted file mode 100644
index c2c1780..0000000
--- a/src/java/org/apache/cassandra/db/RowMutation.java
+++ /dev/null
@@ -1,335 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.cassandra.db;
-
-import java.io.DataInput;
-import java.io.DataOutput;
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.util.*;
-
-import org.apache.commons.lang3.StringUtils;
-
-import org.apache.cassandra.config.CFMetaData;
-import org.apache.cassandra.config.Schema;
-import org.apache.cassandra.db.composites.CellName;
-import org.apache.cassandra.db.composites.Composite;
-import org.apache.cassandra.io.IVersionedSerializer;
-import org.apache.cassandra.net.MessageOut;
-import org.apache.cassandra.net.MessagingService;
-import org.apache.cassandra.utils.ByteBufferUtil;
-
-// TODO convert this to a Builder pattern instead of encouraging RM.add directly,
-// which is less-efficient since we have to keep a mutable HashMap around
-public class RowMutation implements IMutation
-{
-    public static final RowMutationSerializer serializer = new RowMutationSerializer();
-    public static final String FORWARD_TO = "FWD_TO";
-    public static final String FORWARD_FROM = "FWD_FRM";
-
-    // todo this is redundant
-    // when we remove it, also restore SerializationsTest.testRowMutationRead to not regenerate new RowMutations each test
-    private final String keyspaceName;
-
-    private final ByteBuffer key;
-    // map of column family id to mutations for that column family.
-    private final Map<UUID, ColumnFamily> modifications;
-
-    public RowMutation(String keyspaceName, ByteBuffer key)
-    {
-        this(keyspaceName, key, new HashMap<UUID, ColumnFamily>());
-    }
-
-    public RowMutation(String keyspaceName, ByteBuffer key, ColumnFamily cf)
-    {
-        this(keyspaceName, key, Collections.singletonMap(cf.id(), cf));
-    }
-
-    public RowMutation(String keyspaceName, Row row)
-    {
-        this(keyspaceName, row.key.key, row.cf);
-    }
-
-    protected RowMutation(String keyspaceName, ByteBuffer key, Map<UUID, ColumnFamily> modifications)
-    {
-        this.keyspaceName = keyspaceName;
-        this.key = key;
-        this.modifications = modifications;
-    }
-
-    public RowMutation(ByteBuffer key, ColumnFamily cf)
-    {
-        this(cf.metadata().ksName, key, cf);
-    }
-
-    public String getKeyspaceName()
-    {
-        return keyspaceName;
-    }
-
-    public Collection<UUID> getColumnFamilyIds()
-    {
-        return modifications.keySet();
-    }
-
-    public ByteBuffer key()
-    {
-        return key;
-    }
-
-    public Collection<ColumnFamily> getColumnFamilies()
-    {
-        return modifications.values();
-    }
-
-    public ColumnFamily getColumnFamily(UUID cfId)
-    {
-        return modifications.get(cfId);
-    }
-
-    /*
-     * Specify a column family name and the corresponding column
-     * family object.
-     * param @ cf - column family name
-     * param @ columnFamily - the column family.
-     */
-    public void add(ColumnFamily columnFamily)
-    {
-        assert columnFamily != null;
-        ColumnFamily prev = modifications.put(columnFamily.id(), columnFamily);
-        if (prev != null)
-            // developer error
-            throw new IllegalArgumentException("ColumnFamily " + columnFamily + " already has modifications in this mutation: " + prev);
-    }
-
-    /**
-     * @return the ColumnFamily in this RowMutation corresponding to @param cfName, creating an empty one if necessary.
-     */
-    public ColumnFamily addOrGet(String cfName)
-    {
-        return addOrGet(Schema.instance.getCFMetaData(keyspaceName, cfName));
-    }
-
-    public ColumnFamily addOrGet(CFMetaData cfm)
-    {
-        ColumnFamily cf = modifications.get(cfm.cfId);
-        if (cf == null)
-        {
-            cf = TreeMapBackedSortedColumns.factory.create(cfm);
-            modifications.put(cfm.cfId, cf);
-        }
-        return cf;
-    }
-
-    public boolean isEmpty()
-    {
-        return modifications.isEmpty();
-    }
-
-    public void add(String cfName, CellName name, ByteBuffer value, long timestamp, int timeToLive)
-    {
-        addOrGet(cfName).addColumn(name, value, timestamp, timeToLive);
-    }
-
-    public void addCounter(String cfName, CellName name, long value)
-    {
-        addOrGet(cfName).addCounter(name, value);
-    }
-
-    public void add(String cfName, CellName name, ByteBuffer value, long timestamp)
-    {
-        add(cfName, name, value, timestamp, 0);
-    }
-
-    public void delete(String cfName, long timestamp)
-    {
-        int localDeleteTime = (int) (System.currentTimeMillis() / 1000);
-        addOrGet(cfName).delete(new DeletionInfo(timestamp, localDeleteTime));
-    }
-
-    public void delete(String cfName, CellName name, long timestamp)
-    {
-        int localDeleteTime = (int) (System.currentTimeMillis() / 1000);
-        addOrGet(cfName).addTombstone(name, localDeleteTime, timestamp);
-    }
-
-    public void deleteRange(String cfName, Composite start, Composite end, long timestamp)
-    {
-        int localDeleteTime = (int) (System.currentTimeMillis() / 1000);
-        addOrGet(cfName).addAtom(new RangeTombstone(start, end, timestamp, localDeleteTime));
-    }
-
-    public void addAll(IMutation m)
-    {
-        if (!(m instanceof RowMutation))
-            throw new IllegalArgumentException();
-
-        RowMutation rm = (RowMutation)m;
-        if (!keyspaceName.equals(rm.keyspaceName) || !key.equals(rm.key))
-            throw new IllegalArgumentException();
-
-        for (Map.Entry<UUID, ColumnFamily> entry : rm.modifications.entrySet())
-        {
-            // It's slighty faster to assume the key wasn't present and fix if
-            // not in the case where it wasn't there indeed.
-            ColumnFamily cf = modifications.put(entry.getKey(), entry.getValue());
-            if (cf != null)
-                entry.getValue().resolve(cf);
-        }
-    }
-
-    /*
-     * This is equivalent to calling commit. Applies the changes to
-     * to the keyspace that is obtained by calling Keyspace.open().
-     */
-    public void apply()
-    {
-        Keyspace ks = Keyspace.open(keyspaceName);
-        ks.apply(this, ks.metadata.durableWrites);
-    }
-
-    public void applyUnsafe()
-    {
-        Keyspace.open(keyspaceName).apply(this, false);
-    }
-
-    public MessageOut<RowMutation> createMessage()
-    {
-        return createMessage(MessagingService.Verb.MUTATION);
-    }
-
-    public MessageOut<RowMutation> createMessage(MessagingService.Verb verb)
-    {
-        return new MessageOut<>(verb, this, serializer);
-    }
-
-    public String toString()
-    {
-        return toString(false);
-    }
-
-    public String toString(boolean shallow)
-    {
-        StringBuilder buff = new StringBuilder("RowMutation(");
-        buff.append("keyspace='").append(keyspaceName).append('\'');
-        buff.append(", key='").append(ByteBufferUtil.bytesToHex(key)).append('\'');
-        buff.append(", modifications=[");
-        if (shallow)
-        {
-            List<String> cfnames = new ArrayList<String>(modifications.size());
-            for (UUID cfid : modifications.keySet())
-            {
-                CFMetaData cfm = Schema.instance.getCFMetaData(cfid);
-                cfnames.add(cfm == null ? "-dropped-" : cfm.cfName);
-            }
-            buff.append(StringUtils.join(cfnames, ", "));
-        }
-        else
-            buff.append(StringUtils.join(modifications.values(), ", "));
-        return buff.append("])").toString();
-    }
-
-    public RowMutation without(UUID cfId)
-    {
-        RowMutation rm = new RowMutation(keyspaceName, key);
-        for (Map.Entry<UUID, ColumnFamily> entry : modifications.entrySet())
-            if (!entry.getKey().equals(cfId))
-                rm.add(entry.getValue());
-        return rm;
-    }
-
-    public static class RowMutationSerializer implements IVersionedSerializer<RowMutation>
-    {
-        public void serialize(RowMutation rm, DataOutput out, int version) throws IOException
-        {
-            if (version < MessagingService.VERSION_20)
-                out.writeUTF(rm.getKeyspaceName());
-
-            ByteBufferUtil.writeWithShortLength(rm.key(), out);
-
-            /* serialize the modifications in the mutation */
-            int size = rm.modifications.size();
-            out.writeInt(size);
-            assert size > 0;
-            for (Map.Entry<UUID, ColumnFamily> entry : rm.modifications.entrySet())
-                ColumnFamily.serializer.serialize(entry.getValue(), out, version);
-        }
-
-        public RowMutation deserialize(DataInput in, int version, ColumnSerializer.Flag flag) throws IOException
-        {
-            String keyspaceName = null; // will always be set from cf.metadata but javac isn't smart enough to see that
-            if (version < MessagingService.VERSION_20)
-                keyspaceName = in.readUTF();
-
-            ByteBuffer key = ByteBufferUtil.readWithShortLength(in);
-            int size = in.readInt();
-            assert size > 0;
-
-            Map<UUID, ColumnFamily> modifications;
-            if (size == 1)
-            {
-                ColumnFamily cf = deserializeOneCf(in, version, flag);
-                modifications = Collections.singletonMap(cf.id(), cf);
-                keyspaceName = cf.metadata().ksName;
-            }
-            else
-            {
-                modifications = new HashMap<UUID, ColumnFamily>();
-                for (int i = 0; i < size; ++i)
-                {
-                    ColumnFamily cf = deserializeOneCf(in, version, flag);
-                    modifications.put(cf.id(), cf);
-                    keyspaceName = cf.metadata().ksName;
-                }
-            }
-
-            return new RowMutation(keyspaceName, key, modifications);
-        }
-
-        private ColumnFamily deserializeOneCf(DataInput in, int version, ColumnSerializer.Flag flag) throws IOException
-        {
-            ColumnFamily cf = ColumnFamily.serializer.deserialize(in, UnsortedColumns.factory, flag, version);
-            // We don't allow RowMutation with null column family, so we should never get null back.
-            assert cf != null;
-            return cf;
-        }
-
-        public RowMutation deserialize(DataInput in, int version) throws IOException
-        {
-            return deserialize(in, version, ColumnSerializer.Flag.FROM_REMOTE);
-        }
-
-        public long serializedSize(RowMutation rm, int version)
-        {
-            TypeSizes sizes = TypeSizes.NATIVE;
-            int size = 0;
-
-            if (version < MessagingService.VERSION_20)
-                size += sizes.sizeof(rm.getKeyspaceName());
-
-            int keySize = rm.key().remaining();
-            size += sizes.sizeof((short) keySize) + keySize;
-
-            size += sizes.sizeof(rm.modifications.size());
-            for (Map.Entry<UUID,ColumnFamily> entry : rm.modifications.entrySet())
-                size += ColumnFamily.serializer.serializedSize(entry.getValue(), TypeSizes.NATIVE, version);
-
-            return size;
-        }
-    }
-}

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/RowMutationVerbHandler.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/RowMutationVerbHandler.java b/src/java/org/apache/cassandra/db/RowMutationVerbHandler.java
deleted file mode 100644
index dcdfc2e..0000000
--- a/src/java/org/apache/cassandra/db/RowMutationVerbHandler.java
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.cassandra.db;
-
-import java.io.DataInputStream;
-import java.io.IOException;
-import java.net.InetAddress;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import org.apache.cassandra.io.util.FastByteArrayInputStream;
-import org.apache.cassandra.net.*;
-import org.apache.cassandra.tracing.Tracing;
-
-public class RowMutationVerbHandler implements IVerbHandler<RowMutation>
-{
-    private static final Logger logger = LoggerFactory.getLogger(RowMutationVerbHandler.class);
-
-    public void doVerb(MessageIn<RowMutation> message, int id)
-    {
-        try
-        {
-            RowMutation rm = message.payload;
-
-            // Check if there were any forwarding headers in this message
-            byte[] from = message.parameters.get(RowMutation.FORWARD_FROM);
-            InetAddress replyTo;
-            if (from == null)
-            {
-                replyTo = message.from;
-                byte[] forwardBytes = message.parameters.get(RowMutation.FORWARD_TO);
-                if (forwardBytes != null)
-                    forwardToLocalNodes(rm, message.verb, forwardBytes, message.from);
-            }
-            else
-            {
-                replyTo = InetAddress.getByAddress(from);
-            }
-
-            rm.apply();
-            WriteResponse response = new WriteResponse();
-            Tracing.trace("Enqueuing response to {}", replyTo);
-            MessagingService.instance().sendReply(response.createMessage(), id, replyTo);
-        }
-        catch (IOException e)
-        {
-            logger.error("Error in row mutation", e);
-        }
-    }
-
-    /**
-     * Older version (< 1.0) will not send this message at all, hence we don't
-     * need to check the version of the data.
-     */
-    private void forwardToLocalNodes(RowMutation rm, MessagingService.Verb verb, byte[] forwardBytes, InetAddress from) throws IOException
-    {
-        DataInputStream in = new DataInputStream(new FastByteArrayInputStream(forwardBytes));
-        int size = in.readInt();
-
-        // tell the recipients who to send their ack to
-        MessageOut<RowMutation> message = new MessageOut<RowMutation>(verb, rm, RowMutation.serializer).withParameter(RowMutation.FORWARD_FROM, from.getAddress());
-        // Send a message to each of the addresses on our Forward List
-        for (int i = 0; i < size; i++)
-        {
-            InetAddress address = CompactEndpointSerializationHelper.deserialize(in);
-            int id = in.readInt();
-            Tracing.trace("Enqueuing forwarded write to {}", address);
-            MessagingService.instance().sendOneWay(message, id, address);
-        }
-    }
-}

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/SystemKeyspace.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/SystemKeyspace.java b/src/java/org/apache/cassandra/db/SystemKeyspace.java
index 57ae146..34acf4e 100644
--- a/src/java/org/apache/cassandra/db/SystemKeyspace.java
+++ b/src/java/org/apache/cassandra/db/SystemKeyspace.java
@@ -29,12 +29,6 @@ import com.google.common.collect.HashMultimap;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.SetMultimap;
 import com.google.common.collect.Sets;
-
-import org.apache.cassandra.db.compaction.CompactionHistoryTabularData;
-import org.apache.cassandra.db.composites.Composite;
-import org.apache.cassandra.db.composites.Composites;
-import org.apache.cassandra.metrics.RestorableMeter;
-import org.apache.cassandra.transport.Server;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -47,6 +41,9 @@ import org.apache.cassandra.cql3.QueryProcessor;
 import org.apache.cassandra.cql3.UntypedResultSet;
 import org.apache.cassandra.db.columniterator.IdentityQueryFilter;
 import org.apache.cassandra.db.commitlog.ReplayPosition;
+import org.apache.cassandra.db.compaction.CompactionHistoryTabularData;
+import org.apache.cassandra.db.composites.Composite;
+import org.apache.cassandra.db.composites.Composites;
 import org.apache.cassandra.db.filter.QueryFilter;
 import org.apache.cassandra.db.marshal.*;
 import org.apache.cassandra.dht.Range;
@@ -55,10 +52,12 @@ import org.apache.cassandra.exceptions.ConfigurationException;
 import org.apache.cassandra.io.sstable.SSTableReader;
 import org.apache.cassandra.io.util.DataOutputBuffer;
 import org.apache.cassandra.locator.IEndpointSnitch;
+import org.apache.cassandra.metrics.RestorableMeter;
 import org.apache.cassandra.service.StorageService;
 import org.apache.cassandra.service.paxos.Commit;
 import org.apache.cassandra.service.paxos.PaxosState;
 import org.apache.cassandra.thrift.cassandraConstants;
+import org.apache.cassandra.transport.Server;
 import org.apache.cassandra.utils.*;
 
 import static org.apache.cassandra.cql3.QueryProcessor.processInternal;
@@ -597,15 +596,14 @@ public class SystemKeyspace
     {
         ColumnFamily cf = ArrayBackedSortedColumns.factory.create(Keyspace.SYSTEM_KS, INDEX_CF);
         cf.addColumn(new Cell(cf.getComparator().makeCellName(indexName), ByteBufferUtil.EMPTY_BYTE_BUFFER, FBUtilities.timestampMicros()));
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, ByteBufferUtil.bytes(keyspaceName), cf);
-        rm.apply();
+        new Mutation(Keyspace.SYSTEM_KS, ByteBufferUtil.bytes(keyspaceName), cf).apply();
     }
 
     public static void setIndexRemoved(String keyspaceName, String indexName)
     {
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, ByteBufferUtil.bytes(keyspaceName));
-        rm.delete(INDEX_CF, CFMetaData.IndexCf.comparator.makeCellName(indexName), FBUtilities.timestampMicros());
-        rm.apply();
+        Mutation mutation = new Mutation(Keyspace.SYSTEM_KS, ByteBufferUtil.bytes(keyspaceName));
+        mutation.delete(INDEX_CF, CFMetaData.IndexCf.comparator.makeCellName(indexName), FBUtilities.timestampMicros());
+        mutation.apply();
     }
 
     /**
@@ -676,8 +674,7 @@ public class SystemKeyspace
 
         ColumnFamily cf = ArrayBackedSortedColumns.factory.create(Keyspace.SYSTEM_KS, COUNTER_ID_CF);
         cf.addColumn(new Cell(cf.getComparator().makeCellName(newCounterId.bytes()), ip, now));
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, ALL_LOCAL_NODE_ID_KEY, cf);
-        rm.apply();
+        new Mutation(Keyspace.SYSTEM_KS, ALL_LOCAL_NODE_ID_KEY, cf).apply();
         forceBlockingFlush(COUNTER_ID_CF);
     }
 
@@ -736,9 +733,9 @@ public class SystemKeyspace
                                                      System.currentTimeMillis());
     }
 
-    public static Collection<RowMutation> serializeSchema()
+    public static Collection<Mutation> serializeSchema()
     {
-        Map<DecoratedKey, RowMutation> mutationMap = new HashMap<>();
+        Map<DecoratedKey, Mutation> mutationMap = new HashMap<>();
 
         for (String cf : allSchemaCfs)
             serializeSchema(mutationMap, cf);
@@ -746,17 +743,17 @@ public class SystemKeyspace
         return mutationMap.values();
     }
 
-    private static void serializeSchema(Map<DecoratedKey, RowMutation> mutationMap, String schemaCfName)
+    private static void serializeSchema(Map<DecoratedKey, Mutation> mutationMap, String schemaCfName)
     {
         for (Row schemaRow : serializedSchema(schemaCfName))
         {
             if (Schema.ignoredSchemaRow(schemaRow))
                 continue;
 
-            RowMutation mutation = mutationMap.get(schemaRow.key);
+            Mutation mutation = mutationMap.get(schemaRow.key);
             if (mutation == null)
             {
-                mutation = new RowMutation(Keyspace.SYSTEM_KS, schemaRow.key.key);
+                mutation = new Mutation(Keyspace.SYSTEM_KS, schemaRow.key.key);
                 mutationMap.put(schemaRow.key, mutation);
             }
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/commitlog/CommitLog.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/commitlog/CommitLog.java b/src/java/org/apache/cassandra/db/commitlog/CommitLog.java
index 7240aee..b6b32a0 100644
--- a/src/java/org/apache/cassandra/db/commitlog/CommitLog.java
+++ b/src/java/org/apache/cassandra/db/commitlog/CommitLog.java
@@ -21,7 +21,6 @@ import java.io.*;
 import java.lang.management.ManagementFactory;
 import java.nio.ByteBuffer;
 import java.util.*;
-import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 
 import javax.management.MBeanServer;
@@ -188,13 +187,13 @@ public class CommitLog implements CommitLogMBean
     }
 
     /**
-     * Add a RowMutation to the commit log.
+     * Add a Mutation to the commit log.
      *
-     * @param rowMutation the RowMutation to add to the log
+     * @param mutation the Mutation to add to the log
      */
-    public void add(RowMutation rowMutation)
+    public void add(Mutation mutation)
     {
-        long size = RowMutation.serializer.serializedSize(rowMutation, MessagingService.current_version);
+        long size = Mutation.serializer.serializedSize(mutation, MessagingService.current_version);
 
         long totalSize = size + ENTRY_OVERHEAD_SIZE;
         if (totalSize > MAX_MUTATION_SIZE)
@@ -203,7 +202,7 @@ public class CommitLog implements CommitLogMBean
             return;
         }
 
-        Allocation alloc = allocator.allocate(rowMutation, (int) totalSize, new Allocation());
+        Allocation alloc = allocator.allocate(mutation, (int) totalSize, new Allocation());
         try
         {
             PureJavaCrc32 checksum = new PureJavaCrc32();
@@ -215,7 +214,7 @@ public class CommitLog implements CommitLogMBean
             buffer.putLong(checksum.getValue());
 
             // checksummed mutation
-            RowMutation.serializer.serialize(rowMutation, dos, MessagingService.current_version);
+            Mutation.serializer.serialize(mutation, dos, MessagingService.current_version);
             buffer.putLong(checksum.getValue());
         }
         catch (IOException e)

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/commitlog/CommitLogReplayer.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/commitlog/CommitLogReplayer.java b/src/java/org/apache/cassandra/db/commitlog/CommitLogReplayer.java
index 5e8dc9b..00c8bb4 100644
--- a/src/java/org/apache/cassandra/db/commitlog/CommitLogReplayer.java
+++ b/src/java/org/apache/cassandra/db/commitlog/CommitLogReplayer.java
@@ -164,7 +164,7 @@ public class CommitLogReplayer
 
     private abstract static class ReplayFilter
     {
-        public abstract Iterable<ColumnFamily> filter(RowMutation rm);
+        public abstract Iterable<ColumnFamily> filter(Mutation mutation);
 
         public static ReplayFilter create()
         {
@@ -193,9 +193,9 @@ public class CommitLogReplayer
 
     private static class AlwaysReplayFilter extends ReplayFilter
     {
-        public Iterable<ColumnFamily> filter(RowMutation rm)
+        public Iterable<ColumnFamily> filter(Mutation mutation)
         {
-            return rm.getColumnFamilies();
+            return mutation.getColumnFamilies();
         }
     }
 
@@ -208,13 +208,13 @@ public class CommitLogReplayer
             this.toReplay = toReplay;
         }
 
-        public Iterable<ColumnFamily> filter(RowMutation rm)
+        public Iterable<ColumnFamily> filter(Mutation mutation)
         {
-            final Collection<String> cfNames = toReplay.get(rm.getKeyspaceName());
+            final Collection<String> cfNames = toReplay.get(mutation.getKeyspaceName());
             if (cfNames == null)
                 return Collections.emptySet();
 
-            return Iterables.filter(rm.getColumnFamilies(), new Predicate<ColumnFamily>()
+            return Iterables.filter(mutation.getColumnFamilies(), new Predicate<ColumnFamily>()
             {
                 public boolean apply(ColumnFamily cf)
                 {
@@ -264,7 +264,7 @@ public class CommitLogReplayer
 
                 reader.seek(offset);
 
-                 /* read the logs populate RowMutation and apply */
+                 /* read the logs populate Mutation and apply */
                 while (reader.getPosition() < end && !reader.isEOF())
                 {
                     if (logger.isDebugEnabled())
@@ -282,7 +282,7 @@ public class CommitLogReplayer
                             break main;
                         }
 
-                        // RowMutation must be at LEAST 10 bytes:
+                        // Mutation must be at LEAST 10 bytes:
                         // 3 each for a non-empty Keyspace and Key (including the
                         // 2-byte length from writeUTF/writeWithShortLength) and 4 bytes for column count.
                         // This prevents CRC by being fooled by special-case garbage in the file; see CASSANDRA-2128
@@ -320,14 +320,14 @@ public class CommitLogReplayer
 
                     /* deserialize the commit log entry */
                     FastByteArrayInputStream bufIn = new FastByteArrayInputStream(buffer, 0, serializedSize);
-                    final RowMutation rm;
+                    final Mutation mutation;
                     try
                     {
                         // assuming version here. We've gone to lengths to make sure what gets written to the CL is in
                         // the current version. so do make sure the CL is drained prior to upgrading a node.
-                        rm = RowMutation.serializer.deserialize(new DataInputStream(bufIn), version, ColumnSerializer.Flag.LOCAL);
+                        mutation = Mutation.serializer.deserialize(new DataInputStream(bufIn), version, ColumnSerializer.Flag.LOCAL);
                         // doublecheck that what we read is [still] valid for the current schema
-                        for (ColumnFamily cf : rm.getColumnFamilies())
+                        for (ColumnFamily cf : mutation.getColumnFamilies())
                             for (Cell cell : cf)
                                 cf.getComparator().validate(cell.name());
                     }
@@ -364,27 +364,27 @@ public class CommitLogReplayer
                     }
 
                     if (logger.isDebugEnabled())
-                        logger.debug("replaying mutation for {}.{}: {}", rm.getKeyspaceName(), ByteBufferUtil.bytesToHex(rm.key()), "{" + StringUtils.join(rm.getColumnFamilies().iterator(), ", ") + "}");
+                        logger.debug("replaying mutation for {}.{}: {}", mutation.getKeyspaceName(), ByteBufferUtil.bytesToHex(mutation.key()), "{" + StringUtils.join(mutation.getColumnFamilies().iterator(), ", ") + "}");
 
                     final long entryLocation = reader.getFilePointer();
                     Runnable runnable = new WrappedRunnable()
                     {
                         public void runMayThrow() throws IOException
                         {
-                            if (Schema.instance.getKSMetaData(rm.getKeyspaceName()) == null)
+                            if (Schema.instance.getKSMetaData(mutation.getKeyspaceName()) == null)
                                 return;
-                            if (pointInTimeExceeded(rm))
+                            if (pointInTimeExceeded(mutation))
                                 return;
 
-                            final Keyspace keyspace = Keyspace.open(rm.getKeyspaceName());
+                            final Keyspace keyspace = Keyspace.open(mutation.getKeyspaceName());
 
-                            // Rebuild the row mutation, omitting column families that
+                            // Rebuild the mutation, omitting column families that
                             //    a) the user has requested that we ignore,
                             //    b) have already been flushed,
                             // or c) are part of a cf that was dropped.
                             // Keep in mind that the cf.name() is suspect. do every thing based on the cfid instead.
-                            RowMutation newRm = null;
-                            for (ColumnFamily columnFamily : replayFilter.filter(rm))
+                            Mutation newMutation = null;
+                            for (ColumnFamily columnFamily : replayFilter.filter(mutation))
                             {
                                 if (Schema.instance.getCF(columnFamily.id()) == null)
                                     continue; // dropped
@@ -395,16 +395,16 @@ public class CommitLogReplayer
                                 // if it is the last known segment, if we are after the replay position
                                 if (segmentId > rp.segment || (segmentId == rp.segment && entryLocation > rp.position))
                                 {
-                                    if (newRm == null)
-                                        newRm = new RowMutation(rm.getKeyspaceName(), rm.key());
-                                    newRm.add(columnFamily);
+                                    if (newMutation == null)
+                                        newMutation = new Mutation(mutation.getKeyspaceName(), mutation.key());
+                                    newMutation.add(columnFamily);
                                     replayedCount.incrementAndGet();
                                 }
                             }
-                            if (newRm != null)
+                            if (newMutation != null)
                             {
-                                assert !newRm.isEmpty();
-                                Keyspace.open(newRm.getKeyspaceName()).apply(newRm, false);
+                                assert !newMutation.isEmpty();
+                                Keyspace.open(newMutation.getKeyspaceName()).apply(newMutation, false);
                                 keyspacesRecovered.add(keyspace);
                             }
                         }
@@ -431,11 +431,11 @@ public class CommitLogReplayer
         }
     }
 
-    protected boolean pointInTimeExceeded(RowMutation frm)
+    protected boolean pointInTimeExceeded(Mutation fm)
     {
         long restoreTarget = CommitLog.instance.archiver.restorePointInTime;
 
-        for (ColumnFamily families : frm.getColumnFamilies())
+        for (ColumnFamily families : fm.getColumnFamilies())
         {
             if (CommitLog.instance.archiver.precision.toMillis(families.maxTimestamp()) > restoreTarget)
                 return true;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/commitlog/CommitLogSegment.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/commitlog/CommitLogSegment.java b/src/java/org/apache/cassandra/db/commitlog/CommitLogSegment.java
index bc5c7d1..9c80965 100644
--- a/src/java/org/apache/cassandra/db/commitlog/CommitLogSegment.java
+++ b/src/java/org/apache/cassandra/db/commitlog/CommitLogSegment.java
@@ -46,14 +46,14 @@ import org.apache.cassandra.config.CFMetaData;
 import org.apache.cassandra.config.DatabaseDescriptor;
 import org.apache.cassandra.config.Schema;
 import org.apache.cassandra.db.ColumnFamily;
-import org.apache.cassandra.db.RowMutation;
+import org.apache.cassandra.db.Mutation;
 import org.apache.cassandra.io.FSWriteError;
 import org.apache.cassandra.io.util.FileUtils;
 import org.apache.cassandra.utils.PureJavaCrc32;
 import org.apache.cassandra.utils.WaitQueue;
 
 /*
- * A single commit log file on disk. Manages creation of the file and writing row mutations to disk,
+ * A single commit log file on disk. Manages creation of the file and writing mutations to disk,
  * as well as tracking the last mutation position of any "dirty" CFs covered by the segment file. Segment
  * files are initially allocated to a fixed size and can grow to accomidate a larger value if necessary.
  */
@@ -166,11 +166,11 @@ public class CommitLogSegment
     }
 
     /**
-     * allocate space in this buffer for the provided row mutation, and populate the provided
+     * allocate space in this buffer for the provided mutation, and populate the provided
      * Allocation object, returning true on success. False indicates there is not enough room in
      * this segment, and a new segment is needed
      */
-    boolean allocate(RowMutation rowMutation, int size, Allocation alloc)
+    boolean allocate(Mutation mutation, int size, Allocation alloc)
     {
         final AppendLock appendLock = lockForAppend();
         try
@@ -185,7 +185,7 @@ public class CommitLogSegment
             alloc.position = position;
             alloc.segment = this;
             alloc.appendLock = appendLock;
-            markDirty(rowMutation, position);
+            markDirty(mutation, position);
             return true;
         }
         catch (Throwable t)
@@ -386,9 +386,9 @@ public class CommitLogSegment
         }
     }
 
-    void markDirty(RowMutation rowMutation, int allocatedPosition)
+    void markDirty(Mutation mutation, int allocatedPosition)
     {
-        for (ColumnFamily columnFamily : rowMutation.getColumnFamilies())
+        for (ColumnFamily columnFamily : mutation.getColumnFamilies())
         {
             // check for deleted CFS
             CFMetaData cfm = columnFamily.metadata();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/db/commitlog/CommitLogSegmentManager.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/commitlog/CommitLogSegmentManager.java b/src/java/org/apache/cassandra/db/commitlog/CommitLogSegmentManager.java
index dd96f35..4275362 100644
--- a/src/java/org/apache/cassandra/db/commitlog/CommitLogSegmentManager.java
+++ b/src/java/org/apache/cassandra/db/commitlog/CommitLogSegmentManager.java
@@ -29,7 +29,6 @@ import java.util.UUID;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ConcurrentLinkedQueue;
-import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 import java.util.concurrent.FutureTask;
 import java.util.concurrent.LinkedBlockingQueue;
@@ -44,7 +43,7 @@ import org.apache.cassandra.config.DatabaseDescriptor;
 import org.apache.cassandra.config.Schema;
 import org.apache.cassandra.db.ColumnFamilyStore;
 import org.apache.cassandra.db.Keyspace;
-import org.apache.cassandra.db.RowMutation;
+import org.apache.cassandra.db.Mutation;
 import org.apache.cassandra.io.util.FileUtils;
 import org.apache.cassandra.net.MessagingService;
 import org.apache.cassandra.service.StorageService;
@@ -168,16 +167,16 @@ public class CommitLogSegmentManager
     }
 
     /**
-     * Reserve space in the current segment for the provided row mutation or, if there isn't space available,
+     * Reserve space in the current segment for the provided mutation or, if there isn't space available,
      * create a new segment.
      *
      * @return the provided Allocation object
      */
-    public Allocation allocate(RowMutation rowMutation, int size, Allocation alloc)
+    public Allocation allocate(Mutation mutation, int size, Allocation alloc)
     {
         CommitLogSegment segment = allocatingFrom();
 
-        while (!segment.allocate(rowMutation, size, alloc))
+        while (!segment.allocate(mutation, size, alloc))
         {
             // failed to allocate, so move to a new segment with enough room
             advanceAllocatingFrom(segment);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/net/MessagingService.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/net/MessagingService.java b/src/java/org/apache/cassandra/net/MessagingService.java
index b0e554d..894a29c 100644
--- a/src/java/org/apache/cassandra/net/MessagingService.java
+++ b/src/java/org/apache/cassandra/net/MessagingService.java
@@ -189,8 +189,8 @@ public final class MessagingService implements MessagingServiceMBean
         put(Verb.REQUEST_RESPONSE, CallbackDeterminedSerializer.instance);
         put(Verb.INTERNAL_RESPONSE, CallbackDeterminedSerializer.instance);
 
-        put(Verb.MUTATION, RowMutation.serializer);
-        put(Verb.READ_REPAIR, RowMutation.serializer);
+        put(Verb.MUTATION, Mutation.serializer);
+        put(Verb.READ_REPAIR, Mutation.serializer);
         put(Verb.READ, ReadCommand.serializer);
         put(Verb.RANGE_SLICE, RangeSliceCommand.serializer);
         put(Verb.PAGED_RANGE, PagedRangeCommand.serializer);
@@ -334,8 +334,8 @@ public final class MessagingService implements MessagingServiceMBean
 
                 if (expiredCallbackInfo.shouldHint())
                 {
-                    RowMutation rm = (RowMutation) ((WriteCallbackInfo) expiredCallbackInfo).sentMessage.payload;
-                    return StorageProxy.submitHint(rm, expiredCallbackInfo.target, null);
+                    Mutation mutation = (Mutation) ((WriteCallbackInfo) expiredCallbackInfo).sentMessage.payload;
+                    return StorageProxy.submitHint(mutation, expiredCallbackInfo.target, null);
                 }
 
                 return null;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/service/MigrationManager.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/MigrationManager.java b/src/java/org/apache/cassandra/service/MigrationManager.java
index e4740ae..e308613 100644
--- a/src/java/org/apache/cassandra/service/MigrationManager.java
+++ b/src/java/org/apache/cassandra/service/MigrationManager.java
@@ -299,21 +299,21 @@ public class MigrationManager implements IEndpointStateChangeSubscriber
      * actively announce a new version to active hosts via rpc
      * @param schema The schema mutation to be applied
      */
-    private static void announce(RowMutation schema)
+    private static void announce(Mutation schema)
     {
         FBUtilities.waitOnFuture(announce(Collections.singletonList(schema)));
     }
 
-    private static void pushSchemaMutation(InetAddress endpoint, Collection<RowMutation> schema)
+    private static void pushSchemaMutation(InetAddress endpoint, Collection<Mutation> schema)
     {
-        MessageOut<Collection<RowMutation>> msg = new MessageOut<>(MessagingService.Verb.DEFINITIONS_UPDATE,
-                                                                   schema,
-                                                                   MigrationsSerializer.instance);
+        MessageOut<Collection<Mutation>> msg = new MessageOut<>(MessagingService.Verb.DEFINITIONS_UPDATE,
+                                                                schema,
+                                                                MigrationsSerializer.instance);
         MessagingService.instance().sendOneWay(msg, endpoint);
     }
 
     // Returns a future on the local application of the schema
-    private static Future<?> announce(final Collection<RowMutation> schema)
+    private static Future<?> announce(final Collection<Mutation> schema)
     {
         Future<?> f = StageManager.getStage(Stage.MIGRATION).submit(new WrappedRunnable()
         {
@@ -386,33 +386,33 @@ public class MigrationManager implements IEndpointStateChangeSubscriber
         logger.info("Local schema reset is complete.");
     }
 
-    public static class MigrationsSerializer implements IVersionedSerializer<Collection<RowMutation>>
+    public static class MigrationsSerializer implements IVersionedSerializer<Collection<Mutation>>
     {
         public static MigrationsSerializer instance = new MigrationsSerializer();
 
-        public void serialize(Collection<RowMutation> schema, DataOutput out, int version) throws IOException
+        public void serialize(Collection<Mutation> schema, DataOutput out, int version) throws IOException
         {
             out.writeInt(schema.size());
-            for (RowMutation rm : schema)
-                RowMutation.serializer.serialize(rm, out, version);
+            for (Mutation mutation : schema)
+                Mutation.serializer.serialize(mutation, out, version);
         }
 
-        public Collection<RowMutation> deserialize(DataInput in, int version) throws IOException
+        public Collection<Mutation> deserialize(DataInput in, int version) throws IOException
         {
             int count = in.readInt();
-            Collection<RowMutation> schema = new ArrayList<RowMutation>(count);
+            Collection<Mutation> schema = new ArrayList<Mutation>(count);
 
             for (int i = 0; i < count; i++)
-                schema.add(RowMutation.serializer.deserialize(in, version));
+                schema.add(Mutation.serializer.deserialize(in, version));
 
             return schema;
         }
 
-        public long serializedSize(Collection<RowMutation> schema, int version)
+        public long serializedSize(Collection<Mutation> schema, int version)
         {
             int size = TypeSizes.NATIVE.sizeof(schema.size());
-            for (RowMutation rm : schema)
-                size += RowMutation.serializer.serializedSize(rm, version);
+            for (Mutation mutation : schema)
+                size += Mutation.serializer.serializedSize(mutation, version);
             return size;
         }
     }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/service/MigrationTask.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/MigrationTask.java b/src/java/org/apache/cassandra/service/MigrationTask.java
index 93572f0..9fdbff4 100644
--- a/src/java/org/apache/cassandra/service/MigrationTask.java
+++ b/src/java/org/apache/cassandra/service/MigrationTask.java
@@ -24,9 +24,9 @@ import java.util.Collection;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import org.apache.cassandra.db.Mutation;
 import org.apache.cassandra.exceptions.ConfigurationException;
 import org.apache.cassandra.db.DefsTables;
-import org.apache.cassandra.db.RowMutation;
 import org.apache.cassandra.gms.FailureDetector;
 import org.apache.cassandra.net.IAsyncCallback;
 import org.apache.cassandra.net.MessageIn;
@@ -56,10 +56,10 @@ class MigrationTask extends WrappedRunnable
             return;
         }
 
-        IAsyncCallback<Collection<RowMutation>> cb = new IAsyncCallback<Collection<RowMutation>>()
+        IAsyncCallback<Collection<Mutation>> cb = new IAsyncCallback<Collection<Mutation>>()
         {
             @Override
-            public void response(MessageIn<Collection<RowMutation>> message)
+            public void response(MessageIn<Collection<Mutation>> message)
             {
                 try
                 {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/service/RowDataResolver.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/RowDataResolver.java b/src/java/org/apache/cassandra/service/RowDataResolver.java
index f1948cd..5422d82 100644
--- a/src/java/org/apache/cassandra/service/RowDataResolver.java
+++ b/src/java/org/apache/cassandra/service/RowDataResolver.java
@@ -115,13 +115,12 @@ public class RowDataResolver extends AbstractRowResolver
             if (diffCf == null) // no repair needs to happen
                 continue;
 
-            // create and send the row mutation message based on the diff
-            RowMutation rowMutation = new RowMutation(keyspaceName, key.key, diffCf);
-            MessageOut repairMessage;
+            // create and send the mutation message based on the diff
+            Mutation mutation = new Mutation(keyspaceName, key.key, diffCf);
             // use a separate verb here because we don't want these to be get the white glove hint-
             // on-timeout behavior that a "real" mutation gets
-            repairMessage = rowMutation.createMessage(MessagingService.Verb.READ_REPAIR);
-            results.add(MessagingService.instance().sendRR(repairMessage, endpoints.get(i)));
+            results.add(MessagingService.instance().sendRR(mutation.createMessage(MessagingService.Verb.READ_REPAIR),
+                                                           endpoints.get(i)));
         }
 
         return results;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/service/StorageProxy.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/StorageProxy.java b/src/java/org/apache/cassandra/service/StorageProxy.java
index 49aa2be..4113029 100644
--- a/src/java/org/apache/cassandra/service/StorageProxy.java
+++ b/src/java/org/apache/cassandra/service/StorageProxy.java
@@ -122,8 +122,8 @@ public class StorageProxy implements StorageProxyMBean
                               ConsistencyLevel consistency_level)
             throws OverloadedException
             {
-                assert mutation instanceof RowMutation;
-                sendToHintedEndpoints((RowMutation) mutation, targets, responseHandler, localDataCenter);
+                assert mutation instanceof Mutation;
+                sendToHintedEndpoints((Mutation) mutation, targets, responseHandler, localDataCenter);
             }
         };
 
@@ -537,7 +537,7 @@ public class StorageProxy implements StorageProxyMBean
                     List<InetAddress> naturalEndpoints = StorageService.instance.getNaturalEndpoints(mutation.getKeyspaceName(), tk);
                     Collection<InetAddress> pendingEndpoints = StorageService.instance.getTokenMetadata().pendingEndpointsFor(tk, mutation.getKeyspaceName());
                     for (InetAddress target : Iterables.concat(naturalEndpoints, pendingEndpoints))
-                        submitHint((RowMutation) mutation, target, null);
+                        submitHint((Mutation) mutation, target, null);
                 }
                 Tracing.trace("Wrote hint to satisfy CL.ANY after no replicas acknowledged the write");
             }
@@ -571,10 +571,10 @@ public class StorageProxy implements StorageProxyMBean
     public static void mutateWithTriggers(Collection<? extends IMutation> mutations, ConsistencyLevel consistencyLevel, boolean mutateAtomically) throws WriteTimeoutException, UnavailableException,
             OverloadedException, InvalidRequestException
     {
-        Collection<RowMutation> tmutations = TriggerExecutor.instance.execute(mutations);
+        Collection<Mutation> tmutations = TriggerExecutor.instance.execute(mutations);
         if (mutateAtomically || tmutations != null)
         {
-            Collection<RowMutation> allMutations = (Collection<RowMutation>) mutations;
+            Collection<Mutation> allMutations = (Collection<Mutation>) mutations;
             if (tmutations != null)
                 allMutations.addAll(tmutations);
             StorageProxy.mutateAtomically(allMutations, consistencyLevel);
@@ -591,10 +591,10 @@ public class StorageProxy implements StorageProxyMBean
      *      write the entire batch to a batchlog elsewhere in the cluster.
      * After: remove the batchlog entry (after writing hints for the batch rows, if necessary).
      *
-     * @param mutations the RowMutations to be applied across the replicas
+     * @param mutations the Mutations to be applied across the replicas
      * @param consistency_level the consistency level for the operation
      */
-    public static void mutateAtomically(Collection<RowMutation> mutations, ConsistencyLevel consistency_level)
+    public static void mutateAtomically(Collection<Mutation> mutations, ConsistencyLevel consistency_level)
     throws UnavailableException, OverloadedException, WriteTimeoutException
     {
         Tracing.trace("Determining replicas for atomic batch");
@@ -606,7 +606,7 @@ public class StorageProxy implements StorageProxyMBean
         try
         {
             // add a handler for each mutation - includes checking availability, but doesn't initiate any writes, yet
-            for (RowMutation mutation : mutations)
+            for (Mutation mutation : mutations)
             {
                 WriteResponseHandlerWrapper wrapper = wrapResponseHandler(mutation, consistency_level, WriteType.BATCH);
                 // exit early if we can't fulfill the CL at this time.
@@ -645,17 +645,16 @@ public class StorageProxy implements StorageProxyMBean
         }
     }
 
-    private static void syncWriteToBatchlog(Collection<RowMutation> mutations, Collection<InetAddress> endpoints, UUID uuid)
+    private static void syncWriteToBatchlog(Collection<Mutation> mutations, Collection<InetAddress> endpoints, UUID uuid)
     throws WriteTimeoutException
     {
-        RowMutation rm = BatchlogManager.getBatchlogMutationFor(mutations, uuid);
         AbstractWriteResponseHandler handler = new WriteResponseHandler(endpoints,
                                                                         Collections.<InetAddress>emptyList(),
                                                                         ConsistencyLevel.ONE,
                                                                         Keyspace.open(Keyspace.SYSTEM_KS),
                                                                         null,
                                                                         WriteType.BATCH_LOG);
-        updateBatchlog(rm, endpoints, handler);
+        updateBatchlog(BatchlogManager.getBatchlogMutationFor(mutations, uuid), endpoints, handler);
         handler.get();
     }
 
@@ -669,20 +668,19 @@ public class StorageProxy implements StorageProxyMBean
                                                                         Keyspace.open(Keyspace.SYSTEM_KS),
                                                                         null,
                                                                         WriteType.SIMPLE);
-        RowMutation rm = new RowMutation(Keyspace.SYSTEM_KS, UUIDType.instance.decompose(uuid), cf);
-        updateBatchlog(rm, endpoints, handler);
+        updateBatchlog(new Mutation(Keyspace.SYSTEM_KS, UUIDType.instance.decompose(uuid), cf), endpoints, handler);
     }
 
-    private static void updateBatchlog(RowMutation rm, Collection<InetAddress> endpoints, AbstractWriteResponseHandler handler)
+    private static void updateBatchlog(Mutation mutation, Collection<InetAddress> endpoints, AbstractWriteResponseHandler handler)
     {
         if (endpoints.contains(FBUtilities.getBroadcastAddress()))
         {
             assert endpoints.size() == 1;
-            insertLocal(rm, handler);
+            insertLocal(mutation, handler);
         }
         else
         {
-            MessageOut<RowMutation> message = rm.createMessage();
+            MessageOut<Mutation> message = mutation.createMessage();
             for (InetAddress target : endpoints)
                 MessagingService.instance().sendRR(message, target, handler);
         }
@@ -744,7 +742,7 @@ public class StorageProxy implements StorageProxyMBean
     }
 
     // same as above except does not initiate writes (but does perform availability checks).
-    private static WriteResponseHandlerWrapper wrapResponseHandler(RowMutation mutation, ConsistencyLevel consistency_level, WriteType writeType)
+    private static WriteResponseHandlerWrapper wrapResponseHandler(Mutation mutation, ConsistencyLevel consistency_level, WriteType writeType)
     {
         AbstractReplicationStrategy rs = Keyspace.open(mutation.getKeyspaceName()).getReplicationStrategy();
         String keyspaceName = mutation.getKeyspaceName();
@@ -759,9 +757,9 @@ public class StorageProxy implements StorageProxyMBean
     private static class WriteResponseHandlerWrapper
     {
         final AbstractWriteResponseHandler handler;
-        final RowMutation mutation;
+        final Mutation mutation;
 
-        WriteResponseHandlerWrapper(AbstractWriteResponseHandler handler, RowMutation mutation)
+        WriteResponseHandlerWrapper(AbstractWriteResponseHandler handler, Mutation mutation)
         {
             this.handler = handler;
             this.mutation = mutation;
@@ -823,7 +821,7 @@ public class StorageProxy implements StorageProxyMBean
      *
      * @throws OverloadedException if the hints cannot be written/enqueued
      */
-    public static void sendToHintedEndpoints(final RowMutation rm,
+    public static void sendToHintedEndpoints(final Mutation mutation,
                                              Iterable<InetAddress> targets,
                                              AbstractWriteResponseHandler responseHandler,
                                              String localDataCenter)
@@ -832,7 +830,7 @@ public class StorageProxy implements StorageProxyMBean
         // extra-datacenter replicas, grouped by dc
         Map<String, Collection<InetAddress>> dcGroups = null;
         // only need to create a Message for non-local writes
-        MessageOut<RowMutation> message = null;
+        MessageOut<Mutation> message = null;
 
         for (InetAddress destination : targets)
         {
@@ -851,13 +849,13 @@ public class StorageProxy implements StorageProxyMBean
             {
                 if (destination.equals(FBUtilities.getBroadcastAddress()) && OPTIMIZE_LOCAL_REQUESTS)
                 {
-                    insertLocal(rm, responseHandler);
+                    insertLocal(mutation, responseHandler);
                 }
                 else
                 {
                     // belongs on a different server
                     if (message == null)
-                        message = rm.createMessage();
+                        message = mutation.createMessage();
                     String dc = DatabaseDescriptor.getEndpointSnitch().getDatacenter(destination);
                     // direct writes to local DC or old Cassandra versions
                     // (1.1 knows how to forward old-style String message IDs; updated to int in 2.0)
@@ -885,7 +883,7 @@ public class StorageProxy implements StorageProxyMBean
                     continue;
 
                 // Schedule a local hint
-                submitHint(rm, destination, responseHandler);
+                submitHint(mutation, destination, responseHandler);
             }
         }
 
@@ -893,7 +891,7 @@ public class StorageProxy implements StorageProxyMBean
         {
             // for each datacenter, send the message to one node to relay the write to other replicas
             if (message == null)
-                message = rm.createMessage();
+                message = mutation.createMessage();
 
             for (Collection<InetAddress> dcTargets : dcGroups.values())
                 sendMessagesToNonlocalDC(message, dcTargets, responseHandler);
@@ -912,7 +910,7 @@ public class StorageProxy implements StorageProxyMBean
         }
     }
 
-    public static Future<Void> submitHint(final RowMutation mutation,
+    public static Future<Void> submitHint(final Mutation mutation,
                                           final InetAddress target,
                                           final AbstractWriteResponseHandler responseHandler)
     {
@@ -949,7 +947,7 @@ public class StorageProxy implements StorageProxyMBean
         return (Future<Void>) StageManager.getStage(Stage.MUTATION).submit(runnable);
     }
 
-    public static void writeHintForMutation(RowMutation mutation, int ttl, InetAddress target)
+    public static void writeHintForMutation(Mutation mutation, int ttl, InetAddress target)
     {
         assert ttl > 0;
         UUID hostId = StorageService.instance.getTokenMetadata().getHostId(target);
@@ -976,7 +974,7 @@ public class StorageProxy implements StorageProxyMBean
                 out.writeInt(id);
                 logger.trace("Adding FWD message to {}@{}", id, destination);
             }
-            message = message.withParameter(RowMutation.FORWARD_TO, out.getData());
+            message = message.withParameter(Mutation.FORWARD_TO, out.getData());
             // send the combined message + forward headers
             int id = MessagingService.instance().sendRR(message, target, handler);
             logger.trace("Sending message to {}@{}", id, target);
@@ -988,13 +986,13 @@ public class StorageProxy implements StorageProxyMBean
         }
     }
 
-    private static void insertLocal(final RowMutation rm, final AbstractWriteResponseHandler responseHandler)
+    private static void insertLocal(final Mutation mutation, final AbstractWriteResponseHandler responseHandler)
     {
         StageManager.getStage(Stage.MUTATION).execute(new LocalMutationRunnable()
         {
             public void runMayThrow()
             {
-                IMutation processed = SinkManager.processWriteRequest(rm);
+                IMutation processed = SinkManager.processWriteRequest(mutation);
                 if (processed != null)
                 {
                     processed.apply();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/service/StorageService.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/StorageService.java b/src/java/org/apache/cassandra/service/StorageService.java
index d088b42..ab095e6 100644
--- a/src/java/org/apache/cassandra/service/StorageService.java
+++ b/src/java/org/apache/cassandra/service/StorageService.java
@@ -222,7 +222,7 @@ public class StorageService extends NotificationBroadcasterSupport implements IE
         }
 
         /* register the verb handlers */
-        MessagingService.instance().registerVerbHandlers(MessagingService.Verb.MUTATION, new RowMutationVerbHandler());
+        MessagingService.instance().registerVerbHandlers(MessagingService.Verb.MUTATION, new MutationVerbHandler());
         MessagingService.instance().registerVerbHandlers(MessagingService.Verb.READ_REPAIR, new ReadRepairVerbHandler());
         MessagingService.instance().registerVerbHandlers(MessagingService.Verb.READ, new ReadVerbHandler());
         MessagingService.instance().registerVerbHandlers(MessagingService.Verb.RANGE_SLICE, new RangeSliceVerbHandler());

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/service/paxos/Commit.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/paxos/Commit.java b/src/java/org/apache/cassandra/service/paxos/Commit.java
index 1f95d04..23f35db 100644
--- a/src/java/org/apache/cassandra/service/paxos/Commit.java
+++ b/src/java/org/apache/cassandra/service/paxos/Commit.java
@@ -30,12 +30,7 @@ import java.nio.ByteBuffer;
 import com.google.common.base.Objects;
 
 import org.apache.cassandra.config.CFMetaData;
-import org.apache.cassandra.db.Cell;
-import org.apache.cassandra.db.ColumnFamily;
-import org.apache.cassandra.db.ColumnSerializer;
-import org.apache.cassandra.db.EmptyColumns;
-import org.apache.cassandra.db.RowMutation;
-import org.apache.cassandra.db.UnsortedColumns;
+import org.apache.cassandra.db.*;
 import org.apache.cassandra.io.IVersionedSerializer;
 import org.apache.cassandra.utils.ByteBufferUtil;
 import org.apache.cassandra.utils.UUIDGen;
@@ -85,10 +80,10 @@ public class Commit
         return this.ballot.equals(ballot);
     }
 
-    public RowMutation makeMutation()
+    public Mutation makeMutation()
     {
         assert update != null;
-        return new RowMutation(key, update);
+        return new Mutation(key, update);
     }
 
     @Override

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/service/paxos/PaxosState.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/paxos/PaxosState.java b/src/java/org/apache/cassandra/service/paxos/PaxosState.java
index ff0b02c..f893acf 100644
--- a/src/java/org/apache/cassandra/service/paxos/PaxosState.java
+++ b/src/java/org/apache/cassandra/service/paxos/PaxosState.java
@@ -27,7 +27,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import org.apache.cassandra.config.CFMetaData;
-import org.apache.cassandra.db.RowMutation;
+import org.apache.cassandra.db.Mutation;
 import org.apache.cassandra.db.Keyspace;
 import org.apache.cassandra.db.SystemKeyspace;
 import org.apache.cassandra.tracing.Tracing;
@@ -114,8 +114,8 @@ public class PaxosState
         // if our current in-progress ballot is strictly greater than the proposal one, we shouldn't
         // erase the in-progress update.
         Tracing.trace("Committing proposal {}", proposal);
-        RowMutation rm = proposal.makeMutation();
-        Keyspace.open(rm.getKeyspaceName()).apply(rm, true);
+        Mutation mutation = proposal.makeMutation();
+        Keyspace.open(mutation.getKeyspaceName()).apply(mutation, true);
 
         // We don't need to lock, we're just blindly updating
         SystemKeyspace.savePaxosCommit(proposal);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/sink/IRequestSink.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/sink/IRequestSink.java b/src/java/org/apache/cassandra/sink/IRequestSink.java
index 8d68ce8..2873e46 100644
--- a/src/java/org/apache/cassandra/sink/IRequestSink.java
+++ b/src/java/org/apache/cassandra/sink/IRequestSink.java
@@ -22,9 +22,9 @@ import org.apache.cassandra.db.IMutation;
 public interface IRequestSink
 {
     /**
-     * Transform or drop a write request (represented by a RowMutation).
+     * Transform or drop a write request (represented by a Mutation).
      *
-     * @param mutation the RowMutation to be applied locally.
+     * @param mutation the Mutation to be applied locally.
      * @return null if the mutation is to be dropped, or the transformed mutation to apply, which may be just
      * the original mutation.
      */

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/thrift/CassandraServer.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/thrift/CassandraServer.java b/src/java/org/apache/cassandra/thrift/CassandraServer.java
index 0e512bd..e91bea2 100644
--- a/src/java/org/apache/cassandra/thrift/CassandraServer.java
+++ b/src/java/org/apache/cassandra/thrift/CassandraServer.java
@@ -659,7 +659,7 @@ public class CassandraServer implements Cassandra.Iface
         ThriftValidation.validateColumnNames(metadata, column_parent, Arrays.asList(column.name));
         ThriftValidation.validateColumnData(metadata, column_parent.super_column, column);
 
-        RowMutation rm;
+        org.apache.cassandra.db.Mutation mutation;
         try
         {
             CellName name = metadata.isSuper()
@@ -668,13 +668,13 @@ public class CassandraServer implements Cassandra.Iface
 
             ColumnFamily cf = ArrayBackedSortedColumns.factory.create(cState.getKeyspace(), column_parent.column_family);
             cf.addColumn(name, column.value, column.timestamp, column.ttl);
-            rm = new RowMutation(cState.getKeyspace(), key, cf);
+            mutation = new org.apache.cassandra.db.Mutation(cState.getKeyspace(), key, cf);
         }
         catch (MarshalException e)
         {
             throw new org.apache.cassandra.exceptions.InvalidRequestException(e.getMessage());
         }
-        doInsert(consistency_level, Arrays.asList(rm));
+        doInsert(consistency_level, Arrays.asList(mutation));
     }
 
     public void insert(ByteBuffer key, ColumnParent column_parent, Column column, ConsistencyLevel consistency_level)
@@ -805,7 +805,7 @@ public class CassandraServer implements Cassandra.Iface
                                                boolean allowCounterMutations)
     throws RequestValidationException
     {
-        List<IMutation> rowMutations = new ArrayList<IMutation>();
+        List<IMutation> mutations = new ArrayList<>();
         ThriftClientState cState = state();
         String keyspace = cState.getKeyspace();
 
@@ -813,10 +813,10 @@ public class CassandraServer implements Cassandra.Iface
         {
             ByteBuffer key = mutationEntry.getKey();
 
-            // We need to separate row mutation for standard cf and counter cf (that will be encapsulated in a
+            // We need to separate mutation for standard cf and counter cf (that will be encapsulated in a
             // CounterMutation) because it doesn't follow the same code path
-            RowMutation rmStandard = null;
-            RowMutation rmCounter = null;
+            org.apache.cassandra.db.Mutation standardMutation = null;
+            org.apache.cassandra.db.Mutation counterMutation = null;
 
             Map<String, List<Mutation>> columnFamilyToMutations = mutationEntry.getValue();
             for (Map.Entry<String, List<Mutation>> columnFamilyMutations : columnFamilyToMutations.entrySet())
@@ -828,112 +828,112 @@ public class CassandraServer implements Cassandra.Iface
                 CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, cfName);
                 ThriftValidation.validateKey(metadata, key);
 
-                RowMutation rm;
+                org.apache.cassandra.db.Mutation mutation;
                 if (metadata.getDefaultValidator().isCommutative())
                 {
                     ThriftConversion.fromThrift(consistency_level).validateCounterForWrite(metadata);
-                    rmCounter = rmCounter == null ? new RowMutation(keyspace, key) : rmCounter;
-                    rm = rmCounter;
+                    counterMutation = counterMutation == null ? new org.apache.cassandra.db.Mutation(keyspace, key) : counterMutation;
+                    mutation = counterMutation;
                 }
                 else
                 {
-                    rmStandard = rmStandard == null ? new RowMutation(keyspace, key) : rmStandard;
-                    rm = rmStandard;
+                    standardMutation = standardMutation == null ? new org.apache.cassandra.db.Mutation(keyspace, key) : standardMutation;
+                    mutation = standardMutation;
                 }
 
-                for (Mutation mutation : columnFamilyMutations.getValue())
+                for (Mutation m : columnFamilyMutations.getValue())
                 {
-                    ThriftValidation.validateMutation(metadata, mutation);
+                    ThriftValidation.validateMutation(metadata, m);
 
-                    if (mutation.deletion != null)
+                    if (m.deletion != null)
                     {
-                        deleteColumnOrSuperColumn(rm, metadata, mutation.deletion);
+                        deleteColumnOrSuperColumn(mutation, metadata, m.deletion);
                     }
-                    if (mutation.column_or_supercolumn != null)
+                    if (m.column_or_supercolumn != null)
                     {
-                        addColumnOrSuperColumn(rm, metadata, mutation.column_or_supercolumn);
+                        addColumnOrSuperColumn(mutation, metadata, m.column_or_supercolumn);
                     }
                 }
             }
-            if (rmStandard != null && !rmStandard.isEmpty())
-                rowMutations.add(rmStandard);
+            if (standardMutation != null && !standardMutation.isEmpty())
+                mutations.add(standardMutation);
 
-            if (rmCounter != null && !rmCounter.isEmpty())
+            if (counterMutation != null && !counterMutation.isEmpty())
             {
                 if (allowCounterMutations)
-                    rowMutations.add(new CounterMutation(rmCounter, ThriftConversion.fromThrift(consistency_level)));
+                    mutations.add(new CounterMutation(counterMutation, ThriftConversion.fromThrift(consistency_level)));
                 else
                     throw new org.apache.cassandra.exceptions.InvalidRequestException("Counter mutations are not allowed in atomic batches");
             }
         }
 
-        return rowMutations;
+        return mutations;
     }
 
-    private void addColumnOrSuperColumn(RowMutation rm, CFMetaData cfm, ColumnOrSuperColumn cosc)
+    private void addColumnOrSuperColumn(org.apache.cassandra.db.Mutation mutation, CFMetaData cfm, ColumnOrSuperColumn cosc)
     {
         if (cosc.super_column != null)
         {
             for (Column column : cosc.super_column.columns)
             {
-                rm.add(cfm.cfName, cfm.comparator.makeCellName(cosc.super_column.name, column.name), column.value, column.timestamp, column.ttl);
+                mutation.add(cfm.cfName, cfm.comparator.makeCellName(cosc.super_column.name, column.name), column.value, column.timestamp, column.ttl);
             }
         }
         else if (cosc.column != null)
         {
-            rm.add(cfm.cfName, cfm.comparator.cellFromByteBuffer(cosc.column.name), cosc.column.value, cosc.column.timestamp, cosc.column.ttl);
+            mutation.add(cfm.cfName, cfm.comparator.cellFromByteBuffer(cosc.column.name), cosc.column.value, cosc.column.timestamp, cosc.column.ttl);
         }
         else if (cosc.counter_super_column != null)
         {
             for (CounterColumn column : cosc.counter_super_column.columns)
             {
-                rm.addCounter(cfm.cfName, cfm.comparator.makeCellName(cosc.counter_super_column.name, column.name), column.value);
+                mutation.addCounter(cfm.cfName, cfm.comparator.makeCellName(cosc.counter_super_column.name, column.name), column.value);
             }
         }
         else // cosc.counter_column != null
         {
-            rm.addCounter(cfm.cfName, cfm.comparator.cellFromByteBuffer(cosc.counter_column.name), cosc.counter_column.value);
+            mutation.addCounter(cfm.cfName, cfm.comparator.cellFromByteBuffer(cosc.counter_column.name), cosc.counter_column.value);
         }
     }
 
-    private void deleteColumnOrSuperColumn(RowMutation rm, CFMetaData cfm, Deletion del)
+    private void deleteColumnOrSuperColumn(org.apache.cassandra.db.Mutation mutation, CFMetaData cfm, Deletion del)
     {
         if (del.predicate != null && del.predicate.column_names != null)
         {
             for (ByteBuffer c : del.predicate.column_names)
             {
                 if (del.super_column == null && cfm.isSuper())
-                    rm.deleteRange(cfm.cfName, SuperColumns.startOf(c), SuperColumns.endOf(c), del.timestamp);
+                    mutation.deleteRange(cfm.cfName, SuperColumns.startOf(c), SuperColumns.endOf(c), del.timestamp);
                 else if (del.super_column != null)
-                    rm.delete(cfm.cfName, cfm.comparator.makeCellName(del.super_column, c), del.timestamp);
+                    mutation.delete(cfm.cfName, cfm.comparator.makeCellName(del.super_column, c), del.timestamp);
                 else
-                    rm.delete(cfm.cfName, cfm.comparator.cellFromByteBuffer(c), del.timestamp);
+                    mutation.delete(cfm.cfName, cfm.comparator.cellFromByteBuffer(c), del.timestamp);
             }
         }
         else if (del.predicate != null && del.predicate.slice_range != null)
         {
             if (del.super_column == null && cfm.isSuper())
-                rm.deleteRange(cfm.cfName,
-                               SuperColumns.startOf(del.predicate.getSlice_range().start),
-                               SuperColumns.startOf(del.predicate.getSlice_range().finish),
-                               del.timestamp);
+                mutation.deleteRange(cfm.cfName,
+                                     SuperColumns.startOf(del.predicate.getSlice_range().start),
+                                     SuperColumns.startOf(del.predicate.getSlice_range().finish),
+                                     del.timestamp);
             else if (del.super_column != null)
-                rm.deleteRange(cfm.cfName,
-                               cfm.comparator.makeCellName(del.super_column, del.predicate.getSlice_range().start),
-                               cfm.comparator.makeCellName(del.super_column, del.predicate.getSlice_range().finish),
-                               del.timestamp);
+                mutation.deleteRange(cfm.cfName,
+                                     cfm.comparator.makeCellName(del.super_column, del.predicate.getSlice_range().start),
+                                     cfm.comparator.makeCellName(del.super_column, del.predicate.getSlice_range().finish),
+                                     del.timestamp);
             else
-                rm.deleteRange(cfm.cfName,
-                               cfm.comparator.cellFromByteBuffer(del.predicate.getSlice_range().start),
-                               cfm.comparator.cellFromByteBuffer(del.predicate.getSlice_range().finish),
-                               del.timestamp);
+                mutation.deleteRange(cfm.cfName,
+                                     cfm.comparator.cellFromByteBuffer(del.predicate.getSlice_range().start),
+                                     cfm.comparator.cellFromByteBuffer(del.predicate.getSlice_range().finish),
+                                     del.timestamp);
         }
         else
         {
             if (del.super_column != null)
-                rm.deleteRange(cfm.cfName, SuperColumns.startOf(del.super_column), SuperColumns.endOf(del.super_column), del.timestamp);
+                mutation.deleteRange(cfm.cfName, SuperColumns.startOf(del.super_column), SuperColumns.endOf(del.super_column), del.timestamp);
             else
-                rm.delete(cfm.cfName, del.timestamp);
+                mutation.delete(cfm.cfName, del.timestamp);
         }
     }
 
@@ -1016,20 +1016,20 @@ public class CassandraServer implements Cassandra.Iface
         if (isCommutativeOp)
             ThriftConversion.fromThrift(consistency_level).validateCounterForWrite(metadata);
 
-        RowMutation rm = new RowMutation(keyspace, key);
+        org.apache.cassandra.db.Mutation mutation = new org.apache.cassandra.db.Mutation(keyspace, key);
         if (column_path.super_column == null && column_path.column == null)
-            rm.delete(column_path.column_family, timestamp);
+            mutation.delete(column_path.column_family, timestamp);
         else if (column_path.super_column == null)
-            rm.delete(column_path.column_family, metadata.comparator.cellFromByteBuffer(column_path.column), timestamp);
+            mutation.delete(column_path.column_family, metadata.comparator.cellFromByteBuffer(column_path.column), timestamp);
         else if (column_path.column == null)
-            rm.deleteRange(column_path.column_family, SuperColumns.startOf(column_path.super_column), SuperColumns.endOf(column_path.super_column), timestamp);
+            mutation.deleteRange(column_path.column_family, SuperColumns.startOf(column_path.super_column), SuperColumns.endOf(column_path.super_column), timestamp);
         else
-            rm.delete(column_path.column_family, metadata.comparator.makeCellName(column_path.super_column, column_path.column), timestamp);
+            mutation.delete(column_path.column_family, metadata.comparator.makeCellName(column_path.super_column, column_path.column), timestamp);
 
         if (isCommutativeOp)
-            doInsert(consistency_level, Arrays.asList(new CounterMutation(rm, ThriftConversion.fromThrift(consistency_level))));
+            doInsert(consistency_level, Arrays.asList(new CounterMutation(mutation, ThriftConversion.fromThrift(consistency_level))));
         else
-            doInsert(consistency_level, Arrays.asList(rm));
+            doInsert(consistency_level, Arrays.asList(mutation));
     }
 
     public void remove(ByteBuffer key, ColumnPath column_path, long timestamp, ConsistencyLevel consistency_level)
@@ -1777,19 +1777,19 @@ public class CassandraServer implements Cassandra.Iface
 
             ThriftValidation.validateColumnNames(metadata, column_parent, Arrays.asList(column.name));
 
-            RowMutation rm = new RowMutation(keyspace, key);
+            org.apache.cassandra.db.Mutation mutation = new org.apache.cassandra.db.Mutation(keyspace, key);
             try
             {
                 if (metadata.isSuper())
-                    rm.addCounter(column_parent.column_family, metadata.comparator.makeCellName(column_parent.super_column, column.name), column.value);
+                    mutation.addCounter(column_parent.column_family, metadata.comparator.makeCellName(column_parent.super_column, column.name), column.value);
                 else
-                    rm.addCounter(column_parent.column_family, metadata.comparator.cellFromByteBuffer(column.name), column.value);
+                    mutation.addCounter(column_parent.column_family, metadata.comparator.cellFromByteBuffer(column.name), column.value);
             }
             catch (MarshalException e)
             {
                 throw new InvalidRequestException(e.getMessage());
             }
-            doInsert(consistency_level, Arrays.asList(new CounterMutation(rm, ThriftConversion.fromThrift(consistency_level))));
+            doInsert(consistency_level, Arrays.asList(new CounterMutation(mutation, ThriftConversion.fromThrift(consistency_level))));
         }
         catch (RequestValidationException e)
         {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/tracing/TraceState.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/tracing/TraceState.java b/src/java/org/apache/cassandra/tracing/TraceState.java
index 5fec633..7f60433 100644
--- a/src/java/org/apache/cassandra/tracing/TraceState.java
+++ b/src/java/org/apache/cassandra/tracing/TraceState.java
@@ -29,7 +29,7 @@ import org.apache.cassandra.concurrent.Stage;
 import org.apache.cassandra.concurrent.StageManager;
 import org.apache.cassandra.config.CFMetaData;
 import org.apache.cassandra.db.ColumnFamily;
-import org.apache.cassandra.db.RowMutation;
+import org.apache.cassandra.db.Mutation;
 import org.apache.cassandra.db.TreeMapBackedSortedColumns;
 import org.apache.cassandra.utils.ByteBufferUtil;
 import org.apache.cassandra.utils.FBUtilities;
@@ -101,7 +101,7 @@ public class TraceState
                 if (elapsed >= 0)
                     Tracing.addColumn(cf, Tracing.buildName(cfMeta, eventId, ByteBufferUtil.bytes("source_elapsed")), elapsed);
                 Tracing.addColumn(cf, Tracing.buildName(cfMeta, eventId, ByteBufferUtil.bytes("thread")), threadName);
-                Tracing.mutateWithCatch(new RowMutation(Tracing.TRACE_KS, sessionIdBytes, cf));
+                Tracing.mutateWithCatch(new Mutation(Tracing.TRACE_KS, sessionIdBytes, cf));
             }
         });
     }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/tracing/Tracing.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/tracing/Tracing.java b/src/java/org/apache/cassandra/tracing/Tracing.java
index 42ce12b..f22f273 100644
--- a/src/java/org/apache/cassandra/tracing/Tracing.java
+++ b/src/java/org/apache/cassandra/tracing/Tracing.java
@@ -167,7 +167,7 @@ public class Tracing
                     CFMetaData cfMeta = CFMetaData.TraceSessionsCf;
                     ColumnFamily cf = ArrayBackedSortedColumns.factory.create(cfMeta);
                     addColumn(cf, buildName(cfMeta, "duration"), elapsed);
-                    mutateWithCatch(new RowMutation(TRACE_KS, sessionIdBytes, cf));
+                    mutateWithCatch(new Mutation(TRACE_KS, sessionIdBytes, cf));
                 }
             });
 
@@ -208,7 +208,7 @@ public class Tracing
                 addParameterColumns(cf, parameters);
                 addColumn(cf, buildName(cfMeta, "request"), request);
                 addColumn(cf, buildName(cfMeta, "started_at"), started_at);
-                mutateWithCatch(new RowMutation(TRACE_KS, sessionIdBytes, cf));
+                mutateWithCatch(new Mutation(TRACE_KS, sessionIdBytes, cf));
             }
         });
     }
@@ -280,7 +280,7 @@ public class Tracing
         state.trace(format, args);
     }
 
-    static void mutateWithCatch(RowMutation mutation)
+    static void mutateWithCatch(Mutation mutation)
     {
         try
         {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/triggers/ITrigger.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/triggers/ITrigger.java b/src/java/org/apache/cassandra/triggers/ITrigger.java
index 15ed7ba..208acea 100644
--- a/src/java/org/apache/cassandra/triggers/ITrigger.java
+++ b/src/java/org/apache/cassandra/triggers/ITrigger.java
@@ -25,7 +25,7 @@ import java.nio.ByteBuffer;
 import java.util.Collection;
 
 import org.apache.cassandra.db.ColumnFamily;
-import org.apache.cassandra.db.RowMutation;
+import org.apache.cassandra.db.Mutation;
 
 /**
  * Trigger interface, For every Mutation received by the coordinator {@link #augment(ByteBuffer, ColumnFamily)}
@@ -44,9 +44,9 @@ public interface ITrigger
     /**
      * Called exactly once per CF update, returned mutations are atomically updated.
      *
-     * @param key - Row Key for the update.
-     * @param update - Update received for the CF
+     * @param key - parition Key for the update.
+     * @param update - update received for the CF
      * @return modifications to be applied, null if no action to be performed.
      */
-    public Collection<RowMutation> augment(ByteBuffer key, ColumnFamily update);
+    public Collection<Mutation> augment(ByteBuffer partitionKey, ColumnFamily update);
 }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/java/org/apache/cassandra/triggers/TriggerExecutor.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/triggers/TriggerExecutor.java b/src/java/org/apache/cassandra/triggers/TriggerExecutor.java
index c294128..91d0ea0 100644
--- a/src/java/org/apache/cassandra/triggers/TriggerExecutor.java
+++ b/src/java/org/apache/cassandra/triggers/TriggerExecutor.java
@@ -29,11 +29,8 @@ import com.google.common.collect.Maps;
 
 import org.apache.cassandra.config.TriggerDefinition;
 import org.apache.cassandra.cql.QueryProcessor;
+import org.apache.cassandra.db.*;
 import org.apache.cassandra.db.composites.CellName;
-import org.apache.cassandra.db.ColumnFamily;
-import org.apache.cassandra.db.CounterMutation;
-import org.apache.cassandra.db.IMutation;
-import org.apache.cassandra.db.RowMutation;
 import org.apache.cassandra.exceptions.InvalidRequestException;
 import org.apache.cassandra.utils.FBUtilities;
 
@@ -63,15 +60,15 @@ public class TriggerExecutor
         cachedTriggers.clear();
     }
 
-    public Collection<RowMutation> execute(Collection<? extends IMutation> updates) throws InvalidRequestException
+    public Collection<Mutation> execute(Collection<? extends IMutation> updates) throws InvalidRequestException
     {
         boolean hasCounters = false;
-        Collection<RowMutation> tmutations = null;
+        Collection<Mutation> tmutations = null;
         for (IMutation mutation : updates)
         {
             for (ColumnFamily cf : mutation.getColumnFamilies())
             {
-                List<RowMutation> intermediate = execute(mutation.key(), cf);
+                List<Mutation> intermediate = execute(mutation.key(), cf);
                 if (intermediate == null)
                     continue;
 
@@ -89,9 +86,9 @@ public class TriggerExecutor
         return tmutations;
     }
 
-    private void validate(Collection<RowMutation> tmutations) throws InvalidRequestException
+    private void validate(Collection<Mutation> tmutations) throws InvalidRequestException
     {
-        for (RowMutation mutation : tmutations)
+        for (Mutation mutation : tmutations)
         {
             QueryProcessor.validateKey(mutation.key());
             for (ColumnFamily tcf : mutation.getColumnFamilies())
@@ -104,12 +101,12 @@ public class TriggerExecutor
      * Switch class loader before using the triggers for the column family, if
      * not loaded them with the custom class loader.
      */
-    private List<RowMutation> execute(ByteBuffer key, ColumnFamily columnFamily)
+    private List<Mutation> execute(ByteBuffer key, ColumnFamily columnFamily)
     {
         Map<String,TriggerDefinition> triggers = columnFamily.metadata().getTriggers();
         if (triggers.isEmpty())
             return null;
-        List<RowMutation> tmutations = Lists.newLinkedList();
+        List<Mutation> tmutations = Lists.newLinkedList();
         Thread.currentThread().setContextClassLoader(customClassLoader);
         try
         {
@@ -121,7 +118,7 @@ public class TriggerExecutor
                     trigger = loadTriggerInstance(td.classOption);
                     cachedTriggers.put(td.classOption, trigger);
                 }
-                Collection<RowMutation> temp = trigger.augment(key, columnFamily);
+                Collection<Mutation> temp = trigger.augment(key, columnFamily);
                 if (temp != null)
                     tmutations.addAll(temp);
             }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/src/resources/org/apache/cassandra/cli/CliHelp.yaml
----------------------------------------------------------------------
diff --git a/src/resources/org/apache/cassandra/cli/CliHelp.yaml b/src/resources/org/apache/cassandra/cli/CliHelp.yaml
index 3d4bd99..0202d19 100644
--- a/src/resources/org/apache/cassandra/cli/CliHelp.yaml
+++ b/src/resources/org/apache/cassandra/cli/CliHelp.yaml
@@ -250,7 +250,7 @@ commands:
           Options have the form {key:value}, see the information on each
           strategy and the examples.
 
-        - durable_writes: When set to false all RowMutations on keyspace will by-pass CommitLog.
+        - durable_writes: When set to false all Mutations on keyspace will by-pass CommitLog.
           Set to true by default.
 
         Examples:
@@ -318,7 +318,7 @@ commands:
           Options have the form {key:value}, see the information on each
           strategy and the examples.
 
-        - durable_writes: When set to false all RowMutations on keyspace will by-pass CommitLog.
+        - durable_writes: When set to false all Mutations on keyspace will by-pass CommitLog.
           Set to true by default.
 
         Examples:


[2/4] Rename RowMutation->Mutation in preparation for Row->Partition

Posted by al...@apache.org.
http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/long/org/apache/cassandra/db/LongKeyspaceTest.java
----------------------------------------------------------------------
diff --git a/test/long/org/apache/cassandra/db/LongKeyspaceTest.java b/test/long/org/apache/cassandra/db/LongKeyspaceTest.java
index 0dd872c..d610efa 100644
--- a/test/long/org/apache/cassandra/db/LongKeyspaceTest.java
+++ b/test/long/org/apache/cassandra/db/LongKeyspaceTest.java
@@ -21,12 +21,10 @@ package org.apache.cassandra.db;
 import org.junit.Test;
 
 import org.apache.cassandra.SchemaLoader;
-import org.apache.cassandra.db.filter.QueryFilter;
 import org.apache.cassandra.utils.WrappedRunnable;
 import static org.apache.cassandra.Util.column;
 
 import org.apache.cassandra.Util;
-import org.apache.cassandra.utils.ByteBufferUtil;
 
 
 public class LongKeyspaceTest extends SchemaLoader
@@ -39,7 +37,7 @@ public class LongKeyspaceTest extends SchemaLoader
 
         for (int i = 1; i < 5000; i += 100)
         {
-            RowMutation rm = new RowMutation("Keyspace1", Util.dk("key" + i).key);
+            Mutation rm = new Mutation("Keyspace1", Util.dk("key" + i).key);
             ColumnFamily cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
             for (int j = 0; j < i; j++)
                 cf.addColumn(column("c" + j, "v" + j, 1L));

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/long/org/apache/cassandra/db/MeteredFlusherTest.java
----------------------------------------------------------------------
diff --git a/test/long/org/apache/cassandra/db/MeteredFlusherTest.java b/test/long/org/apache/cassandra/db/MeteredFlusherTest.java
index 07ddbd6..4bab277 100644
--- a/test/long/org/apache/cassandra/db/MeteredFlusherTest.java
+++ b/test/long/org/apache/cassandra/db/MeteredFlusherTest.java
@@ -50,7 +50,7 @@ public class MeteredFlusherTest extends SchemaLoader
         {
             for (int i = 0; i < 100; i++)
             {
-                RowMutation rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("key" + j));
+                Mutation rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("key" + j));
                 ColumnFamily cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "_CF" + i);
                 // don't cheat by allocating this outside of the loop; that defeats the purpose of deliberately using lots of memory
                 ByteBuffer value = ByteBuffer.allocate(100000);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/long/org/apache/cassandra/db/commitlog/ComitLogStress.java
----------------------------------------------------------------------
diff --git a/test/long/org/apache/cassandra/db/commitlog/ComitLogStress.java b/test/long/org/apache/cassandra/db/commitlog/ComitLogStress.java
index b212a22..d1db2f2 100644
--- a/test/long/org/apache/cassandra/db/commitlog/ComitLogStress.java
+++ b/test/long/org/apache/cassandra/db/commitlog/ComitLogStress.java
@@ -11,7 +11,7 @@ import java.util.concurrent.atomic.AtomicLong;
 import org.apache.cassandra.Util;
 import org.apache.cassandra.concurrent.JMXEnabledThreadPoolExecutor;
 import org.apache.cassandra.concurrent.NamedThreadFactory;
-import org.apache.cassandra.db.RowMutation;
+import org.apache.cassandra.db.Mutation;
 import org.apache.cassandra.utils.ByteBufferUtil;
 import org.apache.cassandra.utils.UUIDGen;
 
@@ -64,7 +64,7 @@ public class ComitLogStress
         public void run() {
             String ks = "Keyspace1";
             ByteBuffer key = ByteBufferUtil.bytes(keyString);
-            RowMutation mutation = new RowMutation(ks, key);
+            Mutation mutation = new Mutation(ks, key);
             mutation.add("Standard1", Util.cellname("name"), ByteBufferUtil.bytes("value"),
                     System.currentTimeMillis());
             CommitLog.instance.add(mutation);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/long/org/apache/cassandra/db/compaction/LongCompactionsTest.java
----------------------------------------------------------------------
diff --git a/test/long/org/apache/cassandra/db/compaction/LongCompactionsTest.java b/test/long/org/apache/cassandra/db/compaction/LongCompactionsTest.java
index 5d68a3b..ce23a47 100644
--- a/test/long/org/apache/cassandra/db/compaction/LongCompactionsTest.java
+++ b/test/long/org/apache/cassandra/db/compaction/LongCompactionsTest.java
@@ -127,7 +127,7 @@ public class LongCompactionsTest extends SchemaLoader
         for (int j = 0; j < SSTABLES; j++) {
             for (int i = 0; i < ROWS_PER_SSTABLE; i++) {
                 DecoratedKey key = Util.dk(String.valueOf(i % 2));
-                RowMutation rm = new RowMutation(KEYSPACE1, key.key);
+                Mutation rm = new Mutation(KEYSPACE1, key.key);
                 long timestamp = j * ROWS_PER_SSTABLE + i;
                 rm.add("Standard1", Util.cellname(String.valueOf(i / 2)),
                        ByteBufferUtil.EMPTY_BYTE_BUFFER,

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/long/org/apache/cassandra/db/compaction/LongLeveledCompactionStrategyTest.java
----------------------------------------------------------------------
diff --git a/test/long/org/apache/cassandra/db/compaction/LongLeveledCompactionStrategyTest.java b/test/long/org/apache/cassandra/db/compaction/LongLeveledCompactionStrategyTest.java
index 0de0395..54fc22f 100644
--- a/test/long/org/apache/cassandra/db/compaction/LongLeveledCompactionStrategyTest.java
+++ b/test/long/org/apache/cassandra/db/compaction/LongLeveledCompactionStrategyTest.java
@@ -27,12 +27,8 @@ import org.junit.Test;
 
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.Util;
-import org.apache.cassandra.db.ColumnFamilyStore;
-import org.apache.cassandra.db.DecoratedKey;
-import org.apache.cassandra.db.RowMutation;
-import org.apache.cassandra.db.Keyspace;
+import org.apache.cassandra.db.*;
 import org.apache.cassandra.io.sstable.SSTableReader;
-import org.apache.cassandra.utils.ByteBufferUtil;
 import org.apache.cassandra.utils.FBUtilities;
 
 public class LongLeveledCompactionStrategyTest extends SchemaLoader
@@ -58,7 +54,7 @@ public class LongLeveledCompactionStrategyTest extends SchemaLoader
         for (int r = 0; r < rows; r++)
         {
             DecoratedKey key = Util.dk(String.valueOf(r));
-            RowMutation rm = new RowMutation(ksname, key.key);
+            Mutation rm = new Mutation(ksname, key.key);
             for (int c = 0; c < columns; c++)
             {
                 rm.add(cfname, Util.cellname("column" + c), value, 0);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/SchemaLoader.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/SchemaLoader.java b/test/unit/org/apache/cassandra/SchemaLoader.java
index df74108..6866402 100644
--- a/test/unit/org/apache/cassandra/SchemaLoader.java
+++ b/test/unit/org/apache/cassandra/SchemaLoader.java
@@ -18,7 +18,6 @@
 package org.apache.cassandra;
 
 import java.io.File;
-import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.*;
 
@@ -399,9 +398,9 @@ public class SchemaLoader
         for (int i = offset; i < offset + numberOfRows; i++)
         {
             ByteBuffer key = ByteBufferUtil.bytes("key" + i);
-            RowMutation rowMutation = new RowMutation(keyspace, key);
-            rowMutation.add(columnFamily, Util.cellname("col" + i), ByteBufferUtil.bytes("val" + i), System.currentTimeMillis());
-            rowMutation.applyUnsafe();
+            Mutation mutation = new Mutation(keyspace, key);
+            mutation.add(columnFamily, Util.cellname("col" + i), ByteBufferUtil.bytes("val" + i), System.currentTimeMillis());
+            mutation.applyUnsafe();
         }
     }
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/Util.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/Util.java b/test/unit/org/apache/cassandra/Util.java
index f6e5b51..ec8f9d5 100644
--- a/test/unit/org/apache/cassandra/Util.java
+++ b/test/unit/org/apache/cassandra/Util.java
@@ -141,7 +141,7 @@ public class Util
         return new Bounds<RowPosition>(rp(left), rp(right));
     }
 
-    public static void addMutation(RowMutation rm, String columnFamilyName, String superColumnName, long columnName, String value, long timestamp)
+    public static void addMutation(Mutation rm, String columnFamilyName, String superColumnName, long columnName, String value, long timestamp)
     {
         CellName cname = superColumnName == null
                        ? CellNames.simpleDense(getBytes(columnName))
@@ -185,7 +185,7 @@ public class Util
     /**
      * Writes out a bunch of mutations for a single column family.
      *
-     * @param mutations A group of RowMutations for the same keyspace and column family.
+     * @param mutations A group of Mutations for the same keyspace and column family.
      * @return The ColumnFamilyStore that was used.
      */
     public static ColumnFamilyStore writeColumnFamily(List<IMutation> mutations) throws IOException, ExecutionException, InterruptedException

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/config/CFMetaDataTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/config/CFMetaDataTest.java b/test/unit/org/apache/cassandra/config/CFMetaDataTest.java
index fd8b637..0d2fa95 100644
--- a/test/unit/org/apache/cassandra/config/CFMetaDataTest.java
+++ b/test/unit/org/apache/cassandra/config/CFMetaDataTest.java
@@ -19,7 +19,6 @@
 package org.apache.cassandra.config;
 
 import java.util.ArrayList;
-import java.util.Iterator;
 import java.util.List;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -127,7 +126,7 @@ public class CFMetaDataTest extends SchemaLoader
         assert before.equals(after) : String.format("\n%s\n!=\n%s", before, after);
 
         // Test schema conversion
-        RowMutation rm = cfm.toSchema(System.currentTimeMillis());
+        Mutation rm = cfm.toSchema(System.currentTimeMillis());
         ColumnFamily serializedCf = rm.getColumnFamily(Schema.instance.getId(Keyspace.SYSTEM_KS, SystemKeyspace.SCHEMA_COLUMNFAMILIES_CF));
         ColumnFamily serializedCD = rm.getColumnFamily(Schema.instance.getId(Keyspace.SYSTEM_KS, SystemKeyspace.SCHEMA_COLUMNS_CF));
         UntypedResultSet.Row result = QueryProcessor.resultify("SELECT * FROM system.schema_columnfamilies", new Row(k, serializedCf)).one();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/config/DefsTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/config/DefsTest.java b/test/unit/org/apache/cassandra/config/DefsTest.java
index edb2b8d..28d3589 100644
--- a/test/unit/org/apache/cassandra/config/DefsTest.java
+++ b/test/unit/org/apache/cassandra/config/DefsTest.java
@@ -171,7 +171,7 @@ public class DefsTest extends SchemaLoader
         // now read and write to it.
         CellName col0 = cellname("col0");
         DecoratedKey dk = Util.dk("key0");
-        RowMutation rm = new RowMutation(ks, dk.key);
+        Mutation rm = new Mutation(ks, dk.key);
         rm.add(cf, col0, ByteBufferUtil.bytes("value0"), 1L);
         rm.apply();
         ColumnFamilyStore store = Keyspace.open(ks).getColumnFamilyStore(cf);
@@ -195,7 +195,7 @@ public class DefsTest extends SchemaLoader
         assert cfm != null;
 
         // write some data, force a flush, then verify that files exist on disk.
-        RowMutation rm = new RowMutation(ks.name, dk.key);
+        Mutation rm = new Mutation(ks.name, dk.key);
         for (int i = 0; i < 100; i++)
             rm.add(cfm.cfName, cellname("col" + i), ByteBufferUtil.bytes("anyvalue"), 1L);
         rm.apply();
@@ -209,7 +209,7 @@ public class DefsTest extends SchemaLoader
         assert !Schema.instance.getKSMetaData(ks.name).cfMetaData().containsKey(cfm.cfName);
 
         // any write should fail.
-        rm = new RowMutation(ks.name, dk.key);
+        rm = new Mutation(ks.name, dk.key);
         boolean success = true;
         try
         {
@@ -245,7 +245,7 @@ public class DefsTest extends SchemaLoader
 
         // test reads and writes.
         CellName col0 = cellname("col0");
-        RowMutation rm = new RowMutation(newCf.ksName, dk.key);
+        Mutation rm = new Mutation(newCf.ksName, dk.key);
         rm.add(newCf.cfName, col0, ByteBufferUtil.bytes("value0"), 1L);
         rm.apply();
         ColumnFamilyStore store = Keyspace.open(newCf.ksName).getColumnFamilyStore(newCf.cfName);
@@ -269,7 +269,7 @@ public class DefsTest extends SchemaLoader
         assert cfm != null;
 
         // write some data, force a flush, then verify that files exist on disk.
-        RowMutation rm = new RowMutation(ks.name, dk.key);
+        Mutation rm = new Mutation(ks.name, dk.key);
         for (int i = 0; i < 100; i++)
             rm.add(cfm.cfName, cellname("col" + i), ByteBufferUtil.bytes("anyvalue"), 1L);
         rm.apply();
@@ -283,7 +283,7 @@ public class DefsTest extends SchemaLoader
         assert Schema.instance.getKSMetaData(ks.name) == null;
 
         // write should fail.
-        rm = new RowMutation(ks.name, dk.key);
+        rm = new Mutation(ks.name, dk.key);
         boolean success = true;
         try
         {
@@ -320,7 +320,7 @@ public class DefsTest extends SchemaLoader
         assert cfm != null;
 
         // write some data
-        RowMutation rm = new RowMutation(ks.name, dk.key);
+        Mutation rm = new Mutation(ks.name, dk.key);
         for (int i = 0; i < 100; i++)
             rm.add(cfm.cfName, cellname("col" + i), ByteBufferUtil.bytes("anyvalue"), 1L);
         rm.apply();
@@ -354,7 +354,7 @@ public class DefsTest extends SchemaLoader
         // now read and write to it.
         CellName col0 = cellname("col0");
         DecoratedKey dk = Util.dk("key0");
-        RowMutation rm = new RowMutation(newKs.name, dk.key);
+        Mutation rm = new Mutation(newKs.name, dk.key);
         rm.add(newCf.cfName, col0, ByteBufferUtil.bytes("value0"), 1L);
         rm.apply();
         ColumnFamilyStore store = Keyspace.open(newKs.name).getColumnFamilyStore(newCf.cfName);
@@ -503,7 +503,7 @@ public class DefsTest extends SchemaLoader
         ColumnFamilyStore cfs = Keyspace.open("Keyspace6").getColumnFamilyStore("Indexed1");
 
         // insert some data.  save the sstable descriptor so we can make sure it's marked for delete after the drop
-        RowMutation rm = new RowMutation("Keyspace6", ByteBufferUtil.bytes("k1"));
+        Mutation rm = new Mutation("Keyspace6", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", cellname("notbirthdate"), ByteBufferUtil.bytes(1L), 0);
         rm.add("Indexed1", cellname("birthdate"), ByteBufferUtil.bytes(1L), 0);
         rm.apply();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/CleanupTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/CleanupTest.java b/test/unit/org/apache/cassandra/db/CleanupTest.java
index 29a538e..a068f1b 100644
--- a/test/unit/org/apache/cassandra/db/CleanupTest.java
+++ b/test/unit/org/apache/cassandra/db/CleanupTest.java
@@ -147,8 +147,8 @@ public class CleanupTest extends SchemaLoader
         {
             String key = String.valueOf(i);
             // create a row and update the birthdate value, test that the index query fetches the new version
-            RowMutation rm;
-            rm = new RowMutation(KEYSPACE1, ByteBufferUtil.bytes(key));
+            Mutation rm;
+            rm = new Mutation(KEYSPACE1, ByteBufferUtil.bytes(key));
             rm.add(cfs.name, Util.cellname(COLUMN), VALUE, System.currentTimeMillis());
             rm.applyUnsafe();
         }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/CollationControllerTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/CollationControllerTest.java b/test/unit/org/apache/cassandra/db/CollationControllerTest.java
index 5b7197b..14325a4 100644
--- a/test/unit/org/apache/cassandra/db/CollationControllerTest.java
+++ b/test/unit/org/apache/cassandra/db/CollationControllerTest.java
@@ -21,7 +21,6 @@ package org.apache.cassandra.db;
 import static org.junit.Assert.assertEquals;
 
 import java.io.IOException;
-import java.nio.ByteBuffer;
 import java.util.concurrent.ExecutionException;
 
 import org.apache.cassandra.SchemaLoader;
@@ -32,8 +31,6 @@ import org.apache.cassandra.utils.ByteBufferUtil;
 import org.apache.cassandra.utils.FBUtilities;
 import org.junit.Test;
 
-import org.apache.cassandra.io.sstable.SSTableReader;
-
 public class CollationControllerTest extends SchemaLoader
 {
     @Test
@@ -42,30 +39,30 @@ public class CollationControllerTest extends SchemaLoader
     {
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore("Standard1");
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("key1");
         
         // add data
-        rm = new RowMutation(keyspace.getName(), dk.key);
+        rm = new Mutation(keyspace.getName(), dk.key);
         rm.add(cfs.name, Util.cellname("Column1"), ByteBufferUtil.bytes("asdf"), 0);
         rm.apply();
         cfs.forceBlockingFlush();
         
         // remove
-        rm = new RowMutation(keyspace.getName(), dk.key);
+        rm = new Mutation(keyspace.getName(), dk.key);
         rm.delete(cfs.name, 10);
         rm.apply();
         
         // add another mutation because sstable maxtimestamp isn't set
         // correctly during flush if the most recent mutation is a row delete
-        rm = new RowMutation(keyspace.getName(), Util.dk("key2").key);
+        rm = new Mutation(keyspace.getName(), Util.dk("key2").key);
         rm.add(cfs.name, Util.cellname("Column1"), ByteBufferUtil.bytes("zxcv"), 20);
         rm.apply();
         
         cfs.forceBlockingFlush();
 
         // add yet one more mutation
-        rm = new RowMutation(keyspace.getName(), dk.key);
+        rm = new Mutation(keyspace.getName(), dk.key);
         rm.add(cfs.name, Util.cellname("Column1"), ByteBufferUtil.bytes("foobar"), 30);
         rm.apply();
         cfs.forceBlockingFlush();
@@ -94,18 +91,18 @@ public class CollationControllerTest extends SchemaLoader
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore("StandardGCGS0");
         cfs.disableAutoCompaction();
 
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("key1");
         CellName cellName = Util.cellname("Column1");
 
         // add data
-        rm = new RowMutation(keyspace.getName(), dk.key);
+        rm = new Mutation(keyspace.getName(), dk.key);
         rm.add(cfs.name, cellName, ByteBufferUtil.bytes("asdf"), 0);
         rm.apply();
         cfs.forceBlockingFlush();
 
         // remove
-        rm = new RowMutation(keyspace.getName(), dk.key);
+        rm = new Mutation(keyspace.getName(), dk.key);
         rm.delete(cfs.name, cellName, 0);
         rm.apply();
         cfs.forceBlockingFlush();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/ColumnFamilyStoreTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/ColumnFamilyStoreTest.java b/test/unit/org/apache/cassandra/db/ColumnFamilyStoreTest.java
index d1a2af7..0a081c1 100644
--- a/test/unit/org/apache/cassandra/db/ColumnFamilyStoreTest.java
+++ b/test/unit/org/apache/cassandra/db/ColumnFamilyStoreTest.java
@@ -82,13 +82,13 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore("Standard1");
         cfs.truncateBlocking();
 
-        RowMutation rm;
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("key1"));
+        Mutation rm;
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("key1"));
         rm.add("Standard1", cellname("Column1"), ByteBufferUtil.bytes("asdf"), 0);
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("key1"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("key1"));
         rm.add("Standard1", cellname("Column1"), ByteBufferUtil.bytes("asdf"), 1);
         rm.apply();
         cfs.forceBlockingFlush();
@@ -106,8 +106,8 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         cfs.truncateBlocking();
 
         List<IMutation> rms = new LinkedList<IMutation>();
-        RowMutation rm;
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("key1"));
+        Mutation rm;
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("key1"));
         rm.add("Standard1", cellname("Column1"), ByteBufferUtil.bytes("asdf"), 0);
         rm.add("Standard1", cellname("Column2"), ByteBufferUtil.bytes("asdf"), 0);
         rms.add(rm);
@@ -125,9 +125,9 @@ public class ColumnFamilyStoreTest extends SchemaLoader
     {
         Keyspace keyspace = Keyspace.open("Keyspace1");
         final ColumnFamilyStore store = keyspace.getColumnFamilyStore("Standard2");
-        RowMutation rm;
+        Mutation rm;
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("key1"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("key1"));
         rm.delete("Standard2", System.currentTimeMillis());
         rm.apply();
 
@@ -168,26 +168,26 @@ public class ColumnFamilyStoreTest extends SchemaLoader
     public void testIndexScan()
     {
         ColumnFamilyStore cfs = Keyspace.open("Keyspace1").getColumnFamilyStore("Indexed1");
-        RowMutation rm;
+        Mutation rm;
         CellName nobirthdate = cellname("notbirthdate");
         CellName birthdate = cellname("birthdate");
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", nobirthdate, ByteBufferUtil.bytes(1L), 0);
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(1L), 0);
         rm.apply();
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("k2"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("k2"));
         rm.add("Indexed1", nobirthdate, ByteBufferUtil.bytes(2L), 0);
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(2L), 0);
         rm.apply();
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("k3"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("k3"));
         rm.add("Indexed1", nobirthdate, ByteBufferUtil.bytes(2L), 0);
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(1L), 0);
         rm.apply();
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("k4aaaa"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("k4aaaa"));
         rm.add("Indexed1", nobirthdate, ByteBufferUtil.bytes(2L), 0);
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(3L), 0);
         rm.apply();
@@ -251,11 +251,11 @@ public class ColumnFamilyStoreTest extends SchemaLoader
     @Test
     public void testLargeScan()
     {
-        RowMutation rm;
+        Mutation rm;
         ColumnFamilyStore cfs = Keyspace.open("Keyspace1").getColumnFamilyStore("Indexed1");
         for (int i = 0; i < 100; i++)
         {
-            rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("key" + i));
+            rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("key" + i));
             rm.add("Indexed1", cellname("birthdate"), ByteBufferUtil.bytes(34L), 0);
             rm.add("Indexed1", cellname("notbirthdate"), ByteBufferUtil.bytes((long) (i % 2)), 0);
             rm.applyUnsafe();
@@ -281,9 +281,9 @@ public class ColumnFamilyStoreTest extends SchemaLoader
     public void testIndexDeletions() throws IOException
     {
         ColumnFamilyStore cfs = Keyspace.open("Keyspace3").getColumnFamilyStore("Indexed1");
-        RowMutation rm;
+        Mutation rm;
 
-        rm = new RowMutation("Keyspace3", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace3", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", cellname("birthdate"), ByteBufferUtil.bytes(1L), 0);
         rm.apply();
 
@@ -297,7 +297,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         assert "k1".equals( key );
 
         // delete the column directly
-        rm = new RowMutation("Keyspace3", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace3", ByteBufferUtil.bytes("k1"));
         rm.delete("Indexed1", cellname("birthdate"), 1);
         rm.apply();
         rows = cfs.search(range, clause, filter, 100);
@@ -312,7 +312,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         assert rows.isEmpty();
 
         // resurrect w/ a newer timestamp
-        rm = new RowMutation("Keyspace3", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace3", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", cellname("birthdate"), ByteBufferUtil.bytes(1L), 2);
         rm.apply();
         rows = cfs.search(range, clause, filter, 100);
@@ -321,7 +321,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         assert "k1".equals( key );
 
         // verify that row and delete w/ older timestamp does nothing
-        rm = new RowMutation("Keyspace3", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace3", ByteBufferUtil.bytes("k1"));
         rm.delete("Indexed1", 1);
         rm.apply();
         rows = cfs.search(range, clause, filter, 100);
@@ -330,7 +330,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         assert "k1".equals( key );
 
         // similarly, column delete w/ older timestamp should do nothing
-        rm = new RowMutation("Keyspace3", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace3", ByteBufferUtil.bytes("k1"));
         rm.delete("Indexed1", cellname("birthdate"), 1);
         rm.apply();
         rows = cfs.search(range, clause, filter, 100);
@@ -339,21 +339,21 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         assert "k1".equals( key );
 
         // delete the entire row (w/ newer timestamp this time)
-        rm = new RowMutation("Keyspace3", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace3", ByteBufferUtil.bytes("k1"));
         rm.delete("Indexed1", 3);
         rm.apply();
         rows = cfs.search(range, clause, filter, 100);
         assert rows.isEmpty() : StringUtils.join(rows, ",");
 
         // make sure obsolete mutations don't generate an index entry
-        rm = new RowMutation("Keyspace3", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace3", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", cellname("birthdate"), ByteBufferUtil.bytes(1L), 3);
         rm.apply();
         rows = cfs.search(range, clause, filter, 100);
         assert rows.isEmpty() : StringUtils.join(rows, ",");
 
         // try insert followed by row delete in the same mutation
-        rm = new RowMutation("Keyspace3", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace3", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", cellname("birthdate"), ByteBufferUtil.bytes(1L), 1);
         rm.delete("Indexed1", 2);
         rm.apply();
@@ -361,7 +361,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         assert rows.isEmpty() : StringUtils.join(rows, ",");
 
         // try row delete followed by insert in the same mutation
-        rm = new RowMutation("Keyspace3", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace3", ByteBufferUtil.bytes("k1"));
         rm.delete("Indexed1", 3);
         rm.add("Indexed1", cellname("birthdate"), ByteBufferUtil.bytes(1L), 4);
         rm.apply();
@@ -379,11 +379,11 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         CellName birthdate = cellname("birthdate");
 
         // create a row and update the birthdate value, test that the index query fetches the new version
-        RowMutation rm;
-        rm = new RowMutation("Keyspace2", ByteBufferUtil.bytes("k1"));
+        Mutation rm;
+        rm = new Mutation("Keyspace2", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(1L), 1);
         rm.apply();
-        rm = new RowMutation("Keyspace2", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace2", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(2L), 2);
         rm.apply();
 
@@ -401,7 +401,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         assert "k1".equals( key );
 
         // update the birthdate value with an OLDER timestamp, and test that the index ignores this
-        rm = new RowMutation("Keyspace2", ByteBufferUtil.bytes("k1"));
+        rm = new Mutation("Keyspace2", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(3L), 0);
         rm.apply();
 
@@ -427,8 +427,8 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         ByteBuffer val2 = ByteBufferUtil.bytes(2L);
 
         // create a row and update the "birthdate" value, test that the index query fetches this version
-        RowMutation rm;
-        rm = new RowMutation(keySpace, rowKey);
+        Mutation rm;
+        rm = new Mutation(keySpace, rowKey);
         rm.add(cfName, colName, val1, 0);
         rm.apply();
         IndexExpression expr = new IndexExpression(ByteBufferUtil.bytes("birthdate"), IndexExpression.Operator.EQ, val1);
@@ -442,7 +442,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         keyspace.getColumnFamilyStore(cfName).forceBlockingFlush();
 
         // now apply another update, but force the index update to be skipped
-        rm = new RowMutation(keySpace, rowKey);
+        rm = new Mutation(keySpace, rowKey);
         rm.add(cfName, colName, val2, 1);
         keyspace.apply(rm, true, false);
 
@@ -462,7 +462,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
 
         // now, reset back to the original value, still skipping the index update, to
         // make sure the value was expunged from the index when it was discovered to be inconsistent
-        rm = new RowMutation(keySpace, rowKey);
+        rm = new Mutation(keySpace, rowKey);
         rm.add(cfName, colName, ByteBufferUtil.bytes(1L), 3);
         keyspace.apply(rm, true, false);
 
@@ -495,8 +495,8 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         ByteBuffer val2 = ByteBufferUtil.bytes("v2");
 
         // create a row and update the author value
-        RowMutation rm;
-        rm = new RowMutation(keySpace, rowKey);
+        Mutation rm;
+        rm = new Mutation(keySpace, rowKey);
         rm.add(cfName, compositeName, val1, 0);
         rm.apply();
 
@@ -514,7 +514,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         assertEquals(1, rows.size());
 
         // now apply another update, but force the index update to be skipped
-        rm = new RowMutation(keySpace, rowKey);
+        rm = new Mutation(keySpace, rowKey);
         rm.add(cfName, compositeName, val2, 1);
         keyspace.apply(rm, true, false);
 
@@ -534,7 +534,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
 
         // now, reset back to the original value, still skipping the index update, to
         // make sure the value was expunged from the index when it was discovered to be inconsistent
-        rm = new RowMutation(keySpace, rowKey);
+        rm = new Mutation(keySpace, rowKey);
         rm.add(cfName, compositeName, val1, 2);
         keyspace.apply(rm, true, false);
 
@@ -567,13 +567,13 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         ByteBuffer val1 = ByteBufferUtil.bytes("v2");
 
         // Insert indexed value.
-        RowMutation rm;
-        rm = new RowMutation(keySpace, rowKey);
+        Mutation rm;
+        rm = new Mutation(keySpace, rowKey);
         rm.add(cfName, compositeName, val1, 0);
         rm.apply();
 
         // Now delete the value and flush too.
-        rm = new RowMutation(keySpace, rowKey);
+        rm = new Mutation(keySpace, rowKey);
         rm.delete(cfName, 1);
         rm.apply();
 
@@ -597,27 +597,27 @@ public class ColumnFamilyStoreTest extends SchemaLoader
     public void testIndexScanWithLimitOne()
     {
         ColumnFamilyStore cfs = Keyspace.open("Keyspace1").getColumnFamilyStore("Indexed1");
-        RowMutation rm;
+        Mutation rm;
 
         CellName nobirthdate = cellname("notbirthdate");
         CellName birthdate = cellname("birthdate");
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("kk1"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("kk1"));
         rm.add("Indexed1", nobirthdate, ByteBufferUtil.bytes(1L), 0);
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(1L), 0);
         rm.apply();
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("kk2"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("kk2"));
         rm.add("Indexed1", nobirthdate, ByteBufferUtil.bytes(2L), 0);
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(1L), 0);
         rm.apply();
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("kk3"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("kk3"));
         rm.add("Indexed1", nobirthdate, ByteBufferUtil.bytes(2L), 0);
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(1L), 0);
         rm.apply();
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("kk4"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("kk4"));
         rm.add("Indexed1", nobirthdate, ByteBufferUtil.bytes(2L), 0);
         rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(1L), 0);
         rm.apply();
@@ -641,8 +641,8 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         ColumnFamilyStore cfs = keyspace.getColumnFamilyStore("Indexed2");
 
         // create a row and update the birthdate value, test that the index query fetches the new version
-        RowMutation rm;
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("k1"));
+        Mutation rm;
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("k1"));
         rm.add("Indexed2", cellname("birthdate"), ByteBufferUtil.bytes(1L), 1);
         rm.apply();
 
@@ -722,7 +722,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         assertRowAndColCount(1, 6, false, cfs.getRangeSlice(Util.range("f", "g"), null, ThriftValidation.asIFilter(sp, cfs.metadata, scfName), 100));
 
         // delete
-        RowMutation rm = new RowMutation(keyspace.getName(), key.key);
+        Mutation rm = new Mutation(keyspace.getName(), key.key);
         rm.deleteRange(cfName, SuperColumns.startOf(scfName), SuperColumns.endOf(scfName), 2);
         rm.apply();
 
@@ -776,7 +776,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         ColumnFamily cf = TreeMapBackedSortedColumns.factory.create(cfs.keyspace.getName(), cfs.name);
         for (Cell col : cols)
             cf.addColumn(col.withUpdatedName(CellNames.compositeDense(scfName, col.name().toByteBuffer())));
-        RowMutation rm = new RowMutation(cfs.keyspace.getName(), key.key, cf);
+        Mutation rm = new Mutation(cfs.keyspace.getName(), key.key, cf);
         rm.apply();
     }
 
@@ -785,7 +785,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         ColumnFamily cf = TreeMapBackedSortedColumns.factory.create(cfs.keyspace.getName(), cfs.name);
         for (Cell col : cols)
             cf.addColumn(col);
-        RowMutation rm = new RowMutation(cfs.keyspace.getName(), key.key, cf);
+        Mutation rm = new Mutation(cfs.keyspace.getName(), key.key, cf);
         rm.apply();
     }
 
@@ -817,7 +817,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         assertRowAndColCount(1, 4, false, cfs.getRangeSlice(Util.range("f", "g"), null, ThriftValidation.asIFilter(sp, cfs.metadata, null), 100));
 
         // delete (from sstable and memtable)
-        RowMutation rm = new RowMutation(keyspace.getName(), key.key);
+        Mutation rm = new Mutation(keyspace.getName(), key.key);
         rm.delete(cfs.name, 2);
         rm.apply();
 
@@ -850,13 +850,13 @@ public class ColumnFamilyStoreTest extends SchemaLoader
     {
         ColumnFamilyStore cfs = Keyspace.open("Keyspace2").getColumnFamilyStore("Standard1");
         List<IMutation> rms = new LinkedList<IMutation>();
-        RowMutation rm;
-        rm = new RowMutation("Keyspace2", ByteBufferUtil.bytes("key1"));
+        Mutation rm;
+        rm = new Mutation("Keyspace2", ByteBufferUtil.bytes("key1"));
         rm.add("Standard1", cellname("Column1"), ByteBufferUtil.bytes("asdf"), 0);
         rms.add(rm);
         Util.writeColumnFamily(rms);
 
-        rm = new RowMutation("Keyspace2", ByteBufferUtil.bytes("key2"));
+        rm = new Mutation("Keyspace2", ByteBufferUtil.bytes("key2"));
         rm.add("Standard1", cellname("Column1"), ByteBufferUtil.bytes("asdf"), 0);
         rms.add(rm);
         return Util.writeColumnFamily(rms);
@@ -1270,7 +1270,7 @@ public class ColumnFamilyStoreTest extends SchemaLoader
         for (int i = 0; i < 10; i++)
         {
             ByteBuffer key = ByteBufferUtil.bytes(String.valueOf("k" + i));
-            RowMutation rm = new RowMutation("Keyspace1", key);
+            Mutation rm = new Mutation("Keyspace1", key);
             rm.add("Indexed1", cellname("birthdate"), LongType.instance.decompose(1L), System.currentTimeMillis());
             rm.apply();
         }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/CommitLogTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/CommitLogTest.java b/test/unit/org/apache/cassandra/db/CommitLogTest.java
index 587e731..b51c17e 100644
--- a/test/unit/org/apache/cassandra/db/CommitLogTest.java
+++ b/test/unit/org/apache/cassandra/db/CommitLogTest.java
@@ -99,7 +99,7 @@ public class CommitLogTest extends SchemaLoader
     {
         CommitLog.instance.resetUnsafe();
         // Roughly 32 MB mutation
-        RowMutation rm = new RowMutation("Keyspace1", bytes("k"));
+        Mutation rm = new Mutation("Keyspace1", bytes("k"));
         rm.add("Standard1", Util.cellname("c1"), ByteBuffer.allocate(DatabaseDescriptor.getCommitLogSegmentSize()/4), 0);
 
         // Adding it 5 times
@@ -110,7 +110,7 @@ public class CommitLogTest extends SchemaLoader
         CommitLog.instance.add(rm);
 
         // Adding new mutation on another CF
-        RowMutation rm2 = new RowMutation("Keyspace1", bytes("k"));
+        Mutation rm2 = new Mutation("Keyspace1", bytes("k"));
         rm2.add("Standard2", Util.cellname("c1"), ByteBuffer.allocate(4), 0);
         CommitLog.instance.add(rm2);
 
@@ -129,7 +129,7 @@ public class CommitLogTest extends SchemaLoader
         DatabaseDescriptor.getCommitLogSegmentSize();
         CommitLog.instance.resetUnsafe();
         // Roughly 32 MB mutation
-        RowMutation rm = new RowMutation("Keyspace1", bytes("k"));
+        Mutation rm = new Mutation("Keyspace1", bytes("k"));
         rm.add("Standard1", Util.cellname("c1"), ByteBuffer.allocate((DatabaseDescriptor.getCommitLogSegmentSize()/4) - 1), 0);
 
         // Adding it twice (won't change segment)
@@ -146,7 +146,7 @@ public class CommitLogTest extends SchemaLoader
         assert CommitLog.instance.activeSegments() == 1 : "Expecting 1 segment, got " + CommitLog.instance.activeSegments();
 
         // Adding new mutation on another CF, large enough (including CL entry overhead) that a new segment is created
-        RowMutation rm2 = new RowMutation("Keyspace1", bytes("k"));
+        Mutation rm2 = new Mutation("Keyspace1", bytes("k"));
         rm2.add("Standard2", Util.cellname("c1"), ByteBuffer.allocate((DatabaseDescriptor.getCommitLogSegmentSize()/2) - 100), 0);
         CommitLog.instance.add(rm2);
         // also forces a new segment, since each entry-with-overhead is just under half the CL size
@@ -172,7 +172,7 @@ public class CommitLogTest extends SchemaLoader
     {
         CommitLog.instance.resetUnsafe();
 
-        RowMutation rm = new RowMutation("Keyspace1", bytes("k"));
+        Mutation rm = new Mutation("Keyspace1", bytes("k"));
         rm.add("Standard1", Util.cellname("c1"), ByteBuffer.allocate((DatabaseDescriptor.getCommitLogSegmentSize()) - 83), 0);
         CommitLog.instance.add(rm);
     }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/CounterMutationTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/CounterMutationTest.java b/test/unit/org/apache/cassandra/db/CounterMutationTest.java
index 5cc97e4..dcfb508 100644
--- a/test/unit/org/apache/cassandra/db/CounterMutationTest.java
+++ b/test/unit/org/apache/cassandra/db/CounterMutationTest.java
@@ -36,12 +36,12 @@ public class CounterMutationTest extends SchemaLoader
     @Test
     public void testMergeOldShards() throws IOException
     {
-        RowMutation rm;
+        Mutation rm;
         CounterMutation cm;
 
         CounterId id1 = CounterId.getLocalId();
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("key1"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("key1"));
         rm.addCounter("Counter1", Util.cellname("Column1"), 3);
         cm = new CounterMutation(rm, ConsistencyLevel.ONE);
         cm.apply();
@@ -49,7 +49,7 @@ public class CounterMutationTest extends SchemaLoader
         CounterId.renewLocalId(2L); // faking time of renewal for test
         CounterId id2 = CounterId.getLocalId();
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("key1"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("key1"));
         rm.addCounter("Counter1", Util.cellname("Column1"), 4);
         cm = new CounterMutation(rm, ConsistencyLevel.ONE);
         cm.apply();
@@ -57,7 +57,7 @@ public class CounterMutationTest extends SchemaLoader
         CounterId.renewLocalId(4L); // faking time of renewal for test
         CounterId id3 = CounterId.getLocalId();
 
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("key1"));
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("key1"));
         rm.addCounter("Counter1", Util.cellname("Column1"), 5);
         rm.addCounter("Counter1", Util.cellname("Column2"), 1);
         cm = new CounterMutation(rm, ConsistencyLevel.ONE);

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/HintedHandOffTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/HintedHandOffTest.java b/test/unit/org/apache/cassandra/db/HintedHandOffTest.java
index 4978c57..10a7289 100644
--- a/test/unit/org/apache/cassandra/db/HintedHandOffTest.java
+++ b/test/unit/org/apache/cassandra/db/HintedHandOffTest.java
@@ -63,7 +63,7 @@ public class HintedHandOffTest extends SchemaLoader
         hintStore.disableAutoCompaction();
 
         // insert 1 hint
-        RowMutation rm = new RowMutation(KEYSPACE4, ByteBufferUtil.bytes(1));
+        Mutation rm = new Mutation(KEYSPACE4, ByteBufferUtil.bytes(1));
         rm.add(STANDARD1_CF, Util.cellname(COLUMN1), ByteBufferUtil.EMPTY_BYTE_BUFFER, System.currentTimeMillis());
 
         HintedHandOffManager.instance.hintFor(rm, HintedHandOffManager.calculateHintTTL(rm), UUID.randomUUID()).apply();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/KeyCacheTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/KeyCacheTest.java b/test/unit/org/apache/cassandra/db/KeyCacheTest.java
index dc5b22c..6ca5487 100644
--- a/test/unit/org/apache/cassandra/db/KeyCacheTest.java
+++ b/test/unit/org/apache/cassandra/db/KeyCacheTest.java
@@ -17,7 +17,6 @@
  */
 package org.apache.cassandra.db;
 
-import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.ExecutionException;
@@ -114,13 +113,13 @@ public class KeyCacheTest extends SchemaLoader
 
         DecoratedKey key1 = Util.dk("key1");
         DecoratedKey key2 = Util.dk("key2");
-        RowMutation rm;
+        Mutation rm;
 
         // inserts
-        rm = new RowMutation(KEYSPACE1, key1.key);
+        rm = new Mutation(KEYSPACE1, key1.key);
         rm.add(COLUMN_FAMILY1, Util.cellname("1"), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
         rm.apply();
-        rm = new RowMutation(KEYSPACE1, key2.key);
+        rm = new Mutation(KEYSPACE1, key2.key);
         rm.add(COLUMN_FAMILY1, Util.cellname("2"), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
         rm.apply();
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/KeyCollisionTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/KeyCollisionTest.java b/test/unit/org/apache/cassandra/db/KeyCollisionTest.java
index 0f3e6d9..2c37f03 100644
--- a/test/unit/org/apache/cassandra/db/KeyCollisionTest.java
+++ b/test/unit/org/apache/cassandra/db/KeyCollisionTest.java
@@ -88,8 +88,8 @@ public class KeyCollisionTest extends SchemaLoader
 
     private void insert(String key) throws IOException
     {
-        RowMutation rm;
-        rm = new RowMutation(KEYSPACE, ByteBufferUtil.bytes(key));
+        Mutation rm;
+        rm = new Mutation(KEYSPACE, ByteBufferUtil.bytes(key));
         rm.add(CF, Util.cellname("column"), ByteBufferUtil.bytes("asdf"), 0);
         rm.apply();
     }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/KeyspaceTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/KeyspaceTest.java b/test/unit/org/apache/cassandra/db/KeyspaceTest.java
index fa2ddaf..ef69518 100644
--- a/test/unit/org/apache/cassandra/db/KeyspaceTest.java
+++ b/test/unit/org/apache/cassandra/db/KeyspaceTest.java
@@ -65,7 +65,7 @@ public class KeyspaceTest extends SchemaLoader
 
         ColumnFamily cf = TreeMapBackedSortedColumns.factory.create("Keyspace2", "Standard3");
         cf.addColumn(column("col1","val1", 1L));
-        RowMutation rm = new RowMutation("Keyspace2", TEST_KEY.key, cf);
+        Mutation rm = new Mutation("Keyspace2", TEST_KEY.key, cf);
         rm.apply();
 
         Runnable verify = new WrappedRunnable()
@@ -97,7 +97,7 @@ public class KeyspaceTest extends SchemaLoader
         cf.addColumn(column("col1","val1", 1L));
         cf.addColumn(column("col2","val2", 1L));
         cf.addColumn(column("col3","val3", 1L));
-        RowMutation rm = new RowMutation("Keyspace1", TEST_KEY.key, cf);
+        Mutation rm = new Mutation("Keyspace1", TEST_KEY.key, cf);
         rm.apply();
 
         Runnable verify = new WrappedRunnable()
@@ -127,7 +127,7 @@ public class KeyspaceTest extends SchemaLoader
         cf.addColumn(column("a", "val1", 1L));
         cf.addColumn(column("b", "val2", 1L));
         cf.addColumn(column("c", "val3", 1L));
-        RowMutation rm = new RowMutation("Keyspace1", key.key, cf);
+        Mutation rm = new Mutation("Keyspace1", key.key, cf);
         rm.apply();
 
         cf = cfStore.getColumnFamily(key, cellname("b"), cellname("c"), false, 100, System.currentTimeMillis());
@@ -146,7 +146,7 @@ public class KeyspaceTest extends SchemaLoader
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamily cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard2");
         cf.addColumn(column("col1", "val1", 1));
-        RowMutation rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("row1000"), cf);
+        Mutation rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("row1000"), cf);
         rm.apply();
 
         validateGetSliceNoMatch(keyspace);
@@ -173,7 +173,7 @@ public class KeyspaceTest extends SchemaLoader
         // so if we go to 300, we'll get at least 4 blocks, which is plenty for testing.
         for (int i = 0; i < 300; i++)
             cf.addColumn(column("col" + fmt.format(i), "omg!thisisthevalue!"+i, 1L));
-        RowMutation rm = new RowMutation("Keyspace1", ROW.key, cf);
+        Mutation rm = new Mutation("Keyspace1", ROW.key, cf);
         rm.apply();
 
         Runnable verify = new WrappedRunnable()
@@ -228,7 +228,7 @@ public class KeyspaceTest extends SchemaLoader
         {
             ColumnFamily cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "StandardLong1");
             cf.addColumn(new Cell(cellname((long)i), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0));
-            RowMutation rm = new RowMutation("Keyspace1", ROW.key, cf);
+            Mutation rm = new Mutation("Keyspace1", ROW.key, cf);
             rm.apply();
         }
 
@@ -238,7 +238,7 @@ public class KeyspaceTest extends SchemaLoader
         {
             ColumnFamily cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "StandardLong1");
             cf.addColumn(new Cell(cellname((long)i), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0));
-            RowMutation rm = new RowMutation("Keyspace1", ROW.key, cf);
+            Mutation rm = new Mutation("Keyspace1", ROW.key, cf);
             rm.apply();
 
             cf = cfs.getColumnFamily(ROW, Composites.EMPTY, Composites.EMPTY, true, 1, System.currentTimeMillis());
@@ -276,10 +276,10 @@ public class KeyspaceTest extends SchemaLoader
         cf.addColumn(column("col5", "val5", 1L));
         cf.addColumn(column("col7", "val7", 1L));
         cf.addColumn(column("col9", "val9", 1L));
-        RowMutation rm = new RowMutation("Keyspace1", ROW.key, cf);
+        Mutation rm = new Mutation("Keyspace1", ROW.key, cf);
         rm.apply();
 
-        rm = new RowMutation("Keyspace1", ROW.key);
+        rm = new Mutation("Keyspace1", ROW.key);
         rm.delete("Standard1", cellname("col4"), 2L);
         rm.apply();
 
@@ -328,7 +328,7 @@ public class KeyspaceTest extends SchemaLoader
         cf.addColumn(column("col1", "val1", 1L));
         cf.addColumn(expiringColumn("col2", "val2", 1L, 60)); // long enough not to be tombstoned
         cf.addColumn(column("col3", "val3", 1L));
-        RowMutation rm = new RowMutation("Keyspace1", ROW.key, cf);
+        Mutation rm = new Mutation("Keyspace1", ROW.key, cf);
         rm.apply();
 
         Runnable verify = new WrappedRunnable()
@@ -365,7 +365,7 @@ public class KeyspaceTest extends SchemaLoader
         cf.addColumn(column("col4", "val4", 1L));
         cf.addColumn(column("col5", "val5", 1L));
         cf.addColumn(column("col6", "val6", 1L));
-        RowMutation rm = new RowMutation("Keyspace1", ROW.key, cf);
+        Mutation rm = new Mutation("Keyspace1", ROW.key, cf);
         rm.apply();
         cfStore.forceBlockingFlush();
 
@@ -373,7 +373,7 @@ public class KeyspaceTest extends SchemaLoader
         cf.addColumn(column("col1", "valx", 2L));
         cf.addColumn(column("col2", "valx", 2L));
         cf.addColumn(column("col3", "valx", 2L));
-        rm = new RowMutation("Keyspace1", ROW.key, cf);
+        rm = new Mutation("Keyspace1", ROW.key, cf);
         rm.apply();
 
         Runnable verify = new WrappedRunnable()
@@ -409,7 +409,7 @@ public class KeyspaceTest extends SchemaLoader
         ColumnFamily cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
         for (int i = 1000; i < 2000; i++)
             cf.addColumn(column("col" + i, ("v" + i), 1L));
-        RowMutation rm = new RowMutation("Keyspace1", key.key, cf);
+        Mutation rm = new Mutation("Keyspace1", key.key, cf);
         rm.apply();
         cfStore.forceBlockingFlush();
 
@@ -442,7 +442,7 @@ public class KeyspaceTest extends SchemaLoader
             {
                 cf.addColumn(column("col" + i, ("v" + i), i));
             }
-            RowMutation rm = new RowMutation("Keyspace1", key.key, cf);
+            Mutation rm = new Mutation("Keyspace1", key.key, cf);
             rm.apply();
             cfStore.forceBlockingFlush();
         }
@@ -506,7 +506,7 @@ public class KeyspaceTest extends SchemaLoader
         {
             for (int i = 0; i < 10; i++)
             {
-                RowMutation rm = new RowMutation("Keyspace1", key.key);
+                Mutation rm = new Mutation("Keyspace1", key.key);
                 CellName colName = type.makeCellName(ByteBufferUtil.bytes("a" + i), ByteBufferUtil.bytes(j*10 + i));
                 rm.add("StandardComposite2", colName, ByteBufferUtil.EMPTY_BYTE_BUFFER, 0);
                 rm.apply();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/MultitableTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/MultitableTest.java b/test/unit/org/apache/cassandra/db/MultitableTest.java
index 3d0c8ac..dc8208e 100644
--- a/test/unit/org/apache/cassandra/db/MultitableTest.java
+++ b/test/unit/org/apache/cassandra/db/MultitableTest.java
@@ -39,18 +39,18 @@ public class MultitableTest extends SchemaLoader
         Keyspace keyspace1 = Keyspace.open("Keyspace1");
         Keyspace keyspace2 = Keyspace.open("Keyspace2");
 
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("keymulti");
         ColumnFamily cf;
 
         cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
         cf.addColumn(column("col1", "val1", 1L));
-        rm = new RowMutation("Keyspace1", dk.key, cf);
+        rm = new Mutation("Keyspace1", dk.key, cf);
         rm.apply();
 
         cf = TreeMapBackedSortedColumns.factory.create("Keyspace2", "Standard1");
         cf.addColumn(column("col2", "val2", 1L));
-        rm = new RowMutation("Keyspace2", dk.key, cf);
+        rm = new Mutation("Keyspace2", dk.key, cf);
         rm.apply();
 
         keyspace1.getColumnFamilyStore("Standard1").forceBlockingFlush();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/NameSortTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/NameSortTest.java b/test/unit/org/apache/cassandra/db/NameSortTest.java
index 16a1bc0..6bd71c7 100644
--- a/test/unit/org/apache/cassandra/db/NameSortTest.java
+++ b/test/unit/org/apache/cassandra/db/NameSortTest.java
@@ -60,13 +60,13 @@ public class NameSortTest extends SchemaLoader
         for (int i = 0; i < N; ++i)
         {
             ByteBuffer key = ByteBufferUtil.bytes(Integer.toString(i));
-            RowMutation rm;
+            Mutation rm;
 
             // standard
             for (int j = 0; j < 8; ++j)
             {
                 ByteBuffer bytes = j % 2 == 0 ? ByteBufferUtil.bytes("a") : ByteBufferUtil.bytes("b");
-                rm = new RowMutation("Keyspace1", key);
+                rm = new Mutation("Keyspace1", key);
                 rm.add("Standard1", Util.cellname("Cell-" + j), bytes, j);
                 rm.applyUnsafe();
             }
@@ -74,7 +74,7 @@ public class NameSortTest extends SchemaLoader
             // super
             for (int j = 0; j < 8; ++j)
             {
-                rm = new RowMutation("Keyspace1", key);
+                rm = new Mutation("Keyspace1", key);
                 for (int k = 0; k < 4; ++k)
                 {
                     String value = (j + k) % 2 == 0 ? "a" : "b";

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RangeTombstoneTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RangeTombstoneTest.java b/test/unit/org/apache/cassandra/db/RangeTombstoneTest.java
index 5c37a30..3bbf4b8 100644
--- a/test/unit/org/apache/cassandra/db/RangeTombstoneTest.java
+++ b/test/unit/org/apache/cassandra/db/RangeTombstoneTest.java
@@ -56,28 +56,28 @@ public class RangeTombstoneTest extends SchemaLoader
 
         // Inserting data
         String key = "k1";
-        RowMutation rm;
+        Mutation rm;
         ColumnFamily cf;
 
-        rm = new RowMutation(KSNAME, ByteBufferUtil.bytes(key));
+        rm = new Mutation(KSNAME, ByteBufferUtil.bytes(key));
         for (int i = 0; i < 40; i += 2)
             add(rm, i, 0);
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation(KSNAME, ByteBufferUtil.bytes(key));
+        rm = new Mutation(KSNAME, ByteBufferUtil.bytes(key));
         cf = rm.addOrGet(CFNAME);
         delete(cf, 10, 22, 1);
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation(KSNAME, ByteBufferUtil.bytes(key));
+        rm = new Mutation(KSNAME, ByteBufferUtil.bytes(key));
         for (int i = 1; i < 40; i += 2)
             add(rm, i, 2);
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation(KSNAME, ByteBufferUtil.bytes(key));
+        rm = new Mutation(KSNAME, ByteBufferUtil.bytes(key));
         cf = rm.addOrGet(CFNAME);
         delete(cf, 19, 27, 3);
         rm.apply();
@@ -116,28 +116,28 @@ public class RangeTombstoneTest extends SchemaLoader
 
         // Inserting data
         String key = "k2";
-        RowMutation rm;
+        Mutation rm;
         ColumnFamily cf;
 
-        rm = new RowMutation(KSNAME, ByteBufferUtil.bytes(key));
+        rm = new Mutation(KSNAME, ByteBufferUtil.bytes(key));
         for (int i = 0; i < 20; i++)
             add(rm, i, 0);
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation(KSNAME, ByteBufferUtil.bytes(key));
+        rm = new Mutation(KSNAME, ByteBufferUtil.bytes(key));
         cf = rm.addOrGet(CFNAME);
         delete(cf, 5, 15, 1);
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation(KSNAME, ByteBufferUtil.bytes(key));
+        rm = new Mutation(KSNAME, ByteBufferUtil.bytes(key));
         cf = rm.addOrGet(CFNAME);
         delete(cf, 5, 10, 1);
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation(KSNAME, ByteBufferUtil.bytes(key));
+        rm = new Mutation(KSNAME, ByteBufferUtil.bytes(key));
         cf = rm.addOrGet(CFNAME);
         delete(cf, 5, 8, 2);
         rm.apply();
@@ -172,15 +172,15 @@ public class RangeTombstoneTest extends SchemaLoader
 
         // Inserting data
         String key = "k3";
-        RowMutation rm;
+        Mutation rm;
         ColumnFamily cf;
 
-        rm = new RowMutation(KSNAME, ByteBufferUtil.bytes(key));
+        rm = new Mutation(KSNAME, ByteBufferUtil.bytes(key));
         add(rm, 2, 0);
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation(KSNAME, ByteBufferUtil.bytes(key));
+        rm = new Mutation(KSNAME, ByteBufferUtil.bytes(key));
         // Deletes everything but without being a row tombstone
         delete(rm.addOrGet(CFNAME), 0, 10, 1);
         add(rm, 1, 2);
@@ -222,13 +222,13 @@ public class RangeTombstoneTest extends SchemaLoader
         cfs.disableAutoCompaction();
         cfs.setCompactionStrategyClass(SizeTieredCompactionStrategy.class.getCanonicalName());
 
-        RowMutation rm = new RowMutation(KSNAME, key);
+        Mutation rm = new Mutation(KSNAME, key);
         for (int i = 0; i < 10; i += 2)
             add(rm, i, 0);
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation(KSNAME, key);
+        rm = new Mutation(KSNAME, key);
         ColumnFamily cf = rm.addOrGet(CFNAME);
         for (int i = 0; i < 10; i += 2)
             delete(cf, 0, 7, 0);
@@ -280,7 +280,7 @@ public class RangeTombstoneTest extends SchemaLoader
         TestIndex index = ((TestIndex)cfs.indexManager.getIndexForColumn(indexedColumnName));
         index.resetCounts();
 
-        RowMutation rm = new RowMutation(KSNAME, key);
+        Mutation rm = new Mutation(KSNAME, key);
         for (int i = 0; i < 10; i++)
             add(rm, i, 0);
         rm.apply();
@@ -288,7 +288,7 @@ public class RangeTombstoneTest extends SchemaLoader
         // We should have indexed 1 column
         assertEquals(1, index.inserts.size());
 
-        rm = new RowMutation(KSNAME, key);
+        rm = new Mutation(KSNAME, key);
         ColumnFamily cf = rm.addOrGet(CFNAME);
         for (int i = 0; i < 10; i += 2)
             delete(cf, 0, 7, 0);
@@ -319,13 +319,13 @@ public class RangeTombstoneTest extends SchemaLoader
         TestIndex index = ((TestIndex)cfs.indexManager.getIndexForColumn(indexedColumnName));
         index.resetCounts();
 
-        RowMutation rm = new RowMutation(KSNAME, key);
+        Mutation rm = new Mutation(KSNAME, key);
         for (int i = 0; i < 10; i++)
             add(rm, i, 0);
         rm.apply();
         cfs.forceBlockingFlush();
 
-        rm = new RowMutation(KSNAME, key);
+        rm = new Mutation(KSNAME, key);
         ColumnFamily cf = rm.addOrGet(CFNAME);
         for (int i = 0; i < 10; i += 2)
             delete(cf, 0, 7, 0);
@@ -360,7 +360,7 @@ public class RangeTombstoneTest extends SchemaLoader
         return ByteBufferUtil.toInt(i.toByteBuffer());
     }
 
-    private static void add(RowMutation rm, int value, long timestamp)
+    private static void add(Mutation rm, int value, long timestamp)
     {
         rm.add(CFNAME, b(value), ByteBufferUtil.bytes(value), timestamp);
     }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/ReadMessageTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/ReadMessageTest.java b/test/unit/org/apache/cassandra/db/ReadMessageTest.java
index 1f73b35..d54594f 100644
--- a/test/unit/org/apache/cassandra/db/ReadMessageTest.java
+++ b/test/unit/org/apache/cassandra/db/ReadMessageTest.java
@@ -83,11 +83,11 @@ public class ReadMessageTest extends SchemaLoader
     {
         Keyspace keyspace = Keyspace.open("Keyspace1");
         CellNameType type = keyspace.getColumnFamilyStore("Standard1").getComparator();
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("key1");
 
         // add data
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.add("Standard1", Util.cellname("Column1"), ByteBufferUtil.bytes("abcd"), 0);
         rm.apply();
 
@@ -100,11 +100,11 @@ public class ReadMessageTest extends SchemaLoader
     @Test
     public void testNoCommitLog() throws Exception
     {
-        RowMutation rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("row"));
+        Mutation rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("row"));
         rm.add("Standard1", Util.cellname("commit1"), ByteBufferUtil.bytes("abcd"), 0);
         rm.apply();
 
-        rm = new RowMutation("NoCommitlogSpace", ByteBufferUtil.bytes("row"));
+        rm = new Mutation("NoCommitlogSpace", ByteBufferUtil.bytes("row"));
         rm.add("Standard1", Util.cellname("commit2"), ByteBufferUtil.bytes("abcd"), 0);
         rm.apply();
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RecoveryManager2Test.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RecoveryManager2Test.java b/test/unit/org/apache/cassandra/db/RecoveryManager2Test.java
index ac2d642..8e4145c 100644
--- a/test/unit/org/apache/cassandra/db/RecoveryManager2Test.java
+++ b/test/unit/org/apache/cassandra/db/RecoveryManager2Test.java
@@ -73,7 +73,7 @@ public class RecoveryManager2Test extends SchemaLoader
     {
         ColumnFamily cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", cfname);
         cf.addColumn(column("col1", "val1", 1L));
-        RowMutation rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes(key), cf);
+        Mutation rm = new Mutation("Keyspace1", ByteBufferUtil.bytes(key), cf);
         rm.apply();
     }
 }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RecoveryManager3Test.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RecoveryManager3Test.java b/test/unit/org/apache/cassandra/db/RecoveryManager3Test.java
index 8258970..be11967 100644
--- a/test/unit/org/apache/cassandra/db/RecoveryManager3Test.java
+++ b/test/unit/org/apache/cassandra/db/RecoveryManager3Test.java
@@ -44,18 +44,18 @@ public class RecoveryManager3Test extends SchemaLoader
         Keyspace keyspace1 = Keyspace.open("Keyspace1");
         Keyspace keyspace2 = Keyspace.open("Keyspace2");
 
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("keymulti");
         ColumnFamily cf;
 
         cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
         cf.addColumn(column("col1", "val1", 1L));
-        rm = new RowMutation("Keyspace1", dk.key, cf);
+        rm = new Mutation("Keyspace1", dk.key, cf);
         rm.apply();
 
         cf = TreeMapBackedSortedColumns.factory.create("Keyspace2", "Standard3");
         cf.addColumn(column("col2", "val2", 1L));
-        rm = new RowMutation("Keyspace2", dk.key, cf);
+        rm = new Mutation("Keyspace2", dk.key, cf);
         rm.apply();
 
         keyspace1.getColumnFamilyStore("Standard1").clearUnsafe();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RecoveryManagerTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RecoveryManagerTest.java b/test/unit/org/apache/cassandra/db/RecoveryManagerTest.java
index 0c3c23a..9f73ff2 100644
--- a/test/unit/org/apache/cassandra/db/RecoveryManagerTest.java
+++ b/test/unit/org/apache/cassandra/db/RecoveryManagerTest.java
@@ -48,18 +48,18 @@ public class RecoveryManagerTest extends SchemaLoader
         Keyspace keyspace1 = Keyspace.open("Keyspace1");
         Keyspace keyspace2 = Keyspace.open("Keyspace2");
 
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("keymulti");
         ColumnFamily cf;
 
         cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
         cf.addColumn(column("col1", "val1", 1L));
-        rm = new RowMutation("Keyspace1", dk.key, cf);
+        rm = new Mutation("Keyspace1", dk.key, cf);
         rm.apply();
 
         cf = TreeMapBackedSortedColumns.factory.create("Keyspace2", "Standard3");
         cf.addColumn(column("col2", "val2", 1L));
-        rm = new RowMutation("Keyspace2", dk.key, cf);
+        rm = new Mutation("Keyspace2", dk.key, cf);
         rm.apply();
 
         keyspace1.getColumnFamilyStore("Standard1").clearUnsafe();
@@ -77,7 +77,7 @@ public class RecoveryManagerTest extends SchemaLoader
     {
         Keyspace keyspace1 = Keyspace.open("Keyspace1");
 
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("key");
         ColumnFamily cf;
 
@@ -85,7 +85,7 @@ public class RecoveryManagerTest extends SchemaLoader
         {
             cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Counter1");
             cf.addColumn(new CounterCell(cellname("col"), 1L, 1L));
-            rm = new RowMutation("Keyspace1", dk.key, cf);
+            rm = new Mutation("Keyspace1", dk.key, cf);
             rm.apply();
         }
 
@@ -116,7 +116,7 @@ public class RecoveryManagerTest extends SchemaLoader
             long ts = TimeUnit.MILLISECONDS.toMicros(timeMS + (i * 1000));
             ColumnFamily cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
             cf.addColumn(column("name-" + i, "value", ts));
-            RowMutation rm = new RowMutation("Keyspace1", dk.key, cf);
+            Mutation rm = new Mutation("Keyspace1", dk.key, cf);
             rm.apply();
         }
         keyspace1.getColumnFamilyStore("Standard1").clearUnsafe();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RecoveryManagerTruncateTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RecoveryManagerTruncateTest.java b/test/unit/org/apache/cassandra/db/RecoveryManagerTruncateTest.java
index a5e3876..16ab04a 100644
--- a/test/unit/org/apache/cassandra/db/RecoveryManagerTruncateTest.java
+++ b/test/unit/org/apache/cassandra/db/RecoveryManagerTruncateTest.java
@@ -42,13 +42,13 @@ public class RecoveryManagerTruncateTest extends SchemaLoader
 		Keyspace keyspace = Keyspace.open("Keyspace1");
 		ColumnFamilyStore cfs = keyspace.getColumnFamilyStore("Standard1");
 
-		RowMutation rm;
+		Mutation rm;
 		ColumnFamily cf;
 
 		// add a single cell
         cf = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
 		cf.addColumn(column("col1", "val1", 1L));
-        rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes("keymulti"), cf);
+        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("keymulti"), cf);
 		rm.apply();
 
 		// Make sure data was written

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RemoveCellTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RemoveCellTest.java b/test/unit/org/apache/cassandra/db/RemoveCellTest.java
index 1b03122..629b40d 100644
--- a/test/unit/org/apache/cassandra/db/RemoveCellTest.java
+++ b/test/unit/org/apache/cassandra/db/RemoveCellTest.java
@@ -37,17 +37,17 @@ public class RemoveCellTest extends SchemaLoader
     {
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore store = keyspace.getColumnFamilyStore("Standard1");
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("key1");
 
         // add data
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.add("Standard1", Util.cellname("Column1"), ByteBufferUtil.bytes("asdf"), 0);
         rm.apply();
         store.forceBlockingFlush();
 
         // remove
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.delete("Standard1", Util.cellname("Column1"), 1);
         rm.apply();
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RemoveColumnFamilyTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RemoveColumnFamilyTest.java b/test/unit/org/apache/cassandra/db/RemoveColumnFamilyTest.java
index 236ba10..b80b9d1 100644
--- a/test/unit/org/apache/cassandra/db/RemoveColumnFamilyTest.java
+++ b/test/unit/org/apache/cassandra/db/RemoveColumnFamilyTest.java
@@ -35,16 +35,16 @@ public class RemoveColumnFamilyTest extends SchemaLoader
     {
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore store = keyspace.getColumnFamilyStore("Standard1");
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("key1");
 
         // add data
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.add("Standard1", Util.cellname("Column1"), ByteBufferUtil.bytes("asdf"), 0);
         rm.apply();
 
         // remove
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.delete("Standard1", 1);
         rm.apply();
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RemoveColumnFamilyWithFlush1Test.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RemoveColumnFamilyWithFlush1Test.java b/test/unit/org/apache/cassandra/db/RemoveColumnFamilyWithFlush1Test.java
index 1bfb140..c95ab97 100644
--- a/test/unit/org/apache/cassandra/db/RemoveColumnFamilyWithFlush1Test.java
+++ b/test/unit/org/apache/cassandra/db/RemoveColumnFamilyWithFlush1Test.java
@@ -35,18 +35,18 @@ public class RemoveColumnFamilyWithFlush1Test extends SchemaLoader
     {
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore store = keyspace.getColumnFamilyStore("Standard1");
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("key1");
 
         // add data
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.add("Standard1", Util.cellname("Column1"), ByteBufferUtil.bytes("asdf"), 0);
         rm.add("Standard1", Util.cellname("Column2"), ByteBufferUtil.bytes("asdf"), 0);
         rm.apply();
         store.forceBlockingFlush();
 
         // remove
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.delete("Standard1", 1);
         rm.apply();
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RemoveColumnFamilyWithFlush2Test.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RemoveColumnFamilyWithFlush2Test.java b/test/unit/org/apache/cassandra/db/RemoveColumnFamilyWithFlush2Test.java
index 9c8aba1..df81d58 100644
--- a/test/unit/org/apache/cassandra/db/RemoveColumnFamilyWithFlush2Test.java
+++ b/test/unit/org/apache/cassandra/db/RemoveColumnFamilyWithFlush2Test.java
@@ -35,15 +35,15 @@ public class RemoveColumnFamilyWithFlush2Test extends SchemaLoader
     {
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore store = keyspace.getColumnFamilyStore("Standard1");
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("key1");
 
         // add data
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.add("Standard1", Util.cellname("Column1"), ByteBufferUtil.bytes("asdf"), 0);
         rm.apply();
         // remove
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.delete("Standard1", 1);
         rm.apply();
         store.forceBlockingFlush();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RemoveSubCellTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RemoveSubCellTest.java b/test/unit/org/apache/cassandra/db/RemoveSubCellTest.java
index 9c3d29c..3026897 100644
--- a/test/unit/org/apache/cassandra/db/RemoveSubCellTest.java
+++ b/test/unit/org/apache/cassandra/db/RemoveSubCellTest.java
@@ -26,7 +26,7 @@ import org.junit.Test;
 import static org.junit.Assert.assertNull;
 import org.apache.cassandra.db.composites.*;
 import org.apache.cassandra.db.filter.QueryFilter;
-import org.apache.cassandra.db.marshal.CompositeType;
+
 import static org.apache.cassandra.Util.getBytes;
 import org.apache.cassandra.Util;
 import org.apache.cassandra.SchemaLoader;
@@ -42,18 +42,18 @@ public class RemoveSubCellTest extends SchemaLoader
     {
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore store = keyspace.getColumnFamilyStore("Super1");
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("key1");
 
         // add data
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         Util.addMutation(rm, "Super1", "SC1", 1, "asdf", 0);
         rm.apply();
         store.forceBlockingFlush();
 
         CellName cname = CellNames.compositeDense(ByteBufferUtil.bytes("SC1"), getBytes(1L));
         // remove
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.delete("Super1", cname, 1);
         rm.apply();
 
@@ -67,11 +67,11 @@ public class RemoveSubCellTest extends SchemaLoader
     {
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore store = keyspace.getColumnFamilyStore("Super1");
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey dk = Util.dk("key2");
 
         // add data
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         Util.addMutation(rm, "Super1", "SC1", 1, "asdf", 0);
         rm.apply();
         store.forceBlockingFlush();
@@ -79,7 +79,7 @@ public class RemoveSubCellTest extends SchemaLoader
         // remove the SC
         ByteBuffer scName = ByteBufferUtil.bytes("SC1");
         CellName cname = CellNames.compositeDense(scName, getBytes(1L));
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.deleteRange("Super1", SuperColumns.startOf(scName), SuperColumns.endOf(scName), 1);
         rm.apply();
 
@@ -89,7 +89,7 @@ public class RemoveSubCellTest extends SchemaLoader
         Uninterruptibles.sleepUninterruptibly(1, TimeUnit.SECONDS);
 
         // remove the column itself
-        rm = new RowMutation("Keyspace1", dk.key);
+        rm = new Mutation("Keyspace1", dk.key);
         rm.delete("Super1", cname, 2);
         rm.apply();
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/RowIterationTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/RowIterationTest.java b/test/unit/org/apache/cassandra/db/RowIterationTest.java
index 9ec7bec..fcdd2e1 100644
--- a/test/unit/org/apache/cassandra/db/RowIterationTest.java
+++ b/test/unit/org/apache/cassandra/db/RowIterationTest.java
@@ -31,7 +31,6 @@ import org.junit.Test;
 
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.db.composites.*;
-import org.apache.cassandra.db.marshal.CompositeType;
 import org.apache.cassandra.utils.FBUtilities;
 import static org.junit.Assert.assertEquals;
 import org.apache.cassandra.utils.ByteBufferUtil;
@@ -52,7 +51,7 @@ public class RowIterationTest extends SchemaLoader
         Set<DecoratedKey> inserted = new HashSet<DecoratedKey>();
         for (int i = 0; i < ROWS_PER_SSTABLE; i++) {
             DecoratedKey key = Util.dk(String.valueOf(i));
-            RowMutation rm = new RowMutation(KEYSPACE1, key.key);
+            Mutation rm = new Mutation(KEYSPACE1, key.key);
             rm.add("Super3", CellNames.compositeDense(ByteBufferUtil.bytes("sc"), ByteBufferUtil.bytes(String.valueOf(i))), ByteBuffer.wrap(new byte[ROWS_PER_SSTABLE * 10 - i * 2]), i);
             rm.apply();
             inserted.add(key);
@@ -70,7 +69,7 @@ public class RowIterationTest extends SchemaLoader
         DecoratedKey key = Util.dk("key");
 
         // Delete row in first sstable
-        RowMutation rm = new RowMutation(KEYSPACE1, key.key);
+        Mutation rm = new Mutation(KEYSPACE1, key.key);
         rm.delete(CF_NAME, 0);
         rm.add(CF_NAME, Util.cellname("c"), ByteBufferUtil.bytes("values"), 0L);
         DeletionInfo delInfo1 = rm.getColumnFamilies().iterator().next().deletionInfo();
@@ -78,7 +77,7 @@ public class RowIterationTest extends SchemaLoader
         store.forceBlockingFlush();
 
         // Delete row in second sstable with higher timestamp
-        rm = new RowMutation(KEYSPACE1, key.key);
+        rm = new Mutation(KEYSPACE1, key.key);
         rm.delete(CF_NAME, 1);
         rm.add(CF_NAME, Util.cellname("c"), ByteBufferUtil.bytes("values"), 1L);
         DeletionInfo delInfo2 = rm.getColumnFamilies().iterator().next().deletionInfo();
@@ -99,7 +98,7 @@ public class RowIterationTest extends SchemaLoader
         DecoratedKey key = Util.dk("key");
 
         // Delete a row in first sstable
-        RowMutation rm = new RowMutation(KEYSPACE1, key.key);
+        Mutation rm = new Mutation(KEYSPACE1, key.key);
         rm.delete(CF_NAME, 0);
         rm.apply();
         store.forceBlockingFlush();

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/ScrubTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/ScrubTest.java b/test/unit/org/apache/cassandra/db/ScrubTest.java
index 614858d..38c8b62 100644
--- a/test/unit/org/apache/cassandra/db/ScrubTest.java
+++ b/test/unit/org/apache/cassandra/db/ScrubTest.java
@@ -85,7 +85,7 @@ public class ScrubTest extends SchemaLoader
 
         ColumnFamily cf = TreeMapBackedSortedColumns.factory.create(KEYSPACE, CF3);
         cf.delete(new DeletionInfo(0, 1)); // expired tombstone
-        RowMutation rm = new RowMutation(KEYSPACE, ByteBufferUtil.bytes(1), cf);
+        Mutation rm = new Mutation(KEYSPACE, ByteBufferUtil.bytes(1), cf);
         rm.applyUnsafe();
         cfs.forceBlockingFlush();
 
@@ -201,7 +201,7 @@ public class ScrubTest extends SchemaLoader
             ColumnFamily cf = TreeMapBackedSortedColumns.factory.create(KEYSPACE, CF);
             cf.addColumn(column("c1", "1", 1L));
             cf.addColumn(column("c2", "2", 1L));
-            RowMutation rm = new RowMutation(KEYSPACE, ByteBufferUtil.bytes(key), cf);
+            Mutation rm = new Mutation(KEYSPACE, ByteBufferUtil.bytes(key), cf);
             rm.applyUnsafe();
         }
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/SerializationsTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/SerializationsTest.java b/test/unit/org/apache/cassandra/db/SerializationsTest.java
index 983a8f7..2bc1493 100644
--- a/test/unit/org/apache/cassandra/db/SerializationsTest.java
+++ b/test/unit/org/apache/cassandra/db/SerializationsTest.java
@@ -210,23 +210,23 @@ public class SerializationsTest extends AbstractSerializationsTester
         in.close();
     }
 
-    private void testRowMutationWrite() throws IOException
+    private void testMutationWrite() throws IOException
     {
-        RowMutation standardRowRm = new RowMutation(statics.KS, statics.StandardRow);
-        RowMutation superRowRm = new RowMutation(statics.KS, statics.SuperRow);
-        RowMutation standardRm = new RowMutation(statics.KS, statics.Key, statics.StandardCf);
-        RowMutation superRm = new RowMutation(statics.KS, statics.Key, statics.SuperCf);
+        Mutation standardRowRm = new Mutation(statics.KS, statics.StandardRow);
+        Mutation superRowRm = new Mutation(statics.KS, statics.SuperRow);
+        Mutation standardRm = new Mutation(statics.KS, statics.Key, statics.StandardCf);
+        Mutation superRm = new Mutation(statics.KS, statics.Key, statics.SuperCf);
         Map<UUID, ColumnFamily> mods = new HashMap<UUID, ColumnFamily>();
         mods.put(statics.StandardCf.metadata().cfId, statics.StandardCf);
         mods.put(statics.SuperCf.metadata().cfId, statics.SuperCf);
-        RowMutation mixedRm = new RowMutation(statics.KS, statics.Key, mods);
+        Mutation mixedRm = new Mutation(statics.KS, statics.Key, mods);
 
         DataOutputStream out = getOutput("db.RowMutation.bin");
-        RowMutation.serializer.serialize(standardRowRm, out, getVersion());
-        RowMutation.serializer.serialize(superRowRm, out, getVersion());
-        RowMutation.serializer.serialize(standardRm, out, getVersion());
-        RowMutation.serializer.serialize(superRm, out, getVersion());
-        RowMutation.serializer.serialize(mixedRm, out, getVersion());
+        Mutation.serializer.serialize(standardRowRm, out, getVersion());
+        Mutation.serializer.serialize(superRowRm, out, getVersion());
+        Mutation.serializer.serialize(standardRm, out, getVersion());
+        Mutation.serializer.serialize(superRm, out, getVersion());
+        Mutation.serializer.serialize(mixedRm, out, getVersion());
 
         standardRowRm.createMessage().serialize(out, getVersion());
         superRowRm.createMessage().serialize(out, getVersion());
@@ -237,27 +237,27 @@ public class SerializationsTest extends AbstractSerializationsTester
         out.close();
 
         // test serializedSize
-        testSerializedSize(standardRowRm, RowMutation.serializer);
-        testSerializedSize(superRowRm, RowMutation.serializer);
-        testSerializedSize(standardRm, RowMutation.serializer);
-        testSerializedSize(superRm, RowMutation.serializer);
-        testSerializedSize(mixedRm, RowMutation.serializer);
+        testSerializedSize(standardRowRm, Mutation.serializer);
+        testSerializedSize(superRowRm, Mutation.serializer);
+        testSerializedSize(standardRm, Mutation.serializer);
+        testSerializedSize(superRm, Mutation.serializer);
+        testSerializedSize(mixedRm, Mutation.serializer);
     }
 
     @Test
-    public void testRowMutationRead() throws IOException
+    public void testMutationRead() throws IOException
     {
-        // row mutation deserialization requires being able to look up the keyspace in the schema,
+        // mutation deserialization requires being able to look up the keyspace in the schema,
         // so we need to rewrite this each time.  We can go back to testing on-disk data
         // once we pull RM.keyspace field out.
-        testRowMutationWrite();
+        testMutationWrite();
 
         DataInputStream in = getInput("db.RowMutation.bin");
-        assert RowMutation.serializer.deserialize(in, getVersion()) != null;
-        assert RowMutation.serializer.deserialize(in, getVersion()) != null;
-        assert RowMutation.serializer.deserialize(in, getVersion()) != null;
-        assert RowMutation.serializer.deserialize(in, getVersion()) != null;
-        assert RowMutation.serializer.deserialize(in, getVersion()) != null;
+        assert Mutation.serializer.deserialize(in, getVersion()) != null;
+        assert Mutation.serializer.deserialize(in, getVersion()) != null;
+        assert Mutation.serializer.deserialize(in, getVersion()) != null;
+        assert Mutation.serializer.deserialize(in, getVersion()) != null;
+        assert Mutation.serializer.deserialize(in, getVersion()) != null;
         assert MessageIn.read(in, getVersion(), -1) != null;
         assert MessageIn.read(in, getVersion(), -1) != null;
         assert MessageIn.read(in, getVersion(), -1) != null;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/6bbb13b9/test/unit/org/apache/cassandra/db/TimeSortTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/TimeSortTest.java b/test/unit/org/apache/cassandra/db/TimeSortTest.java
index f8e9dbc..c7a4a57 100644
--- a/test/unit/org/apache/cassandra/db/TimeSortTest.java
+++ b/test/unit/org/apache/cassandra/db/TimeSortTest.java
@@ -42,15 +42,15 @@ public class TimeSortTest extends SchemaLoader
     {
         Keyspace keyspace = Keyspace.open("Keyspace1");
         ColumnFamilyStore cfStore = keyspace.getColumnFamilyStore("StandardLong1");
-        RowMutation rm;
+        Mutation rm;
         DecoratedKey key = Util.dk("key0");
 
-        rm = new RowMutation("Keyspace1", key.key);
+        rm = new Mutation("Keyspace1", key.key);
         rm.add("StandardLong1", cellname(100), ByteBufferUtil.bytes("a"), 100);
         rm.apply();
         cfStore.forceBlockingFlush();
 
-        rm = new RowMutation("Keyspace1", key.key);
+        rm = new Mutation("Keyspace1", key.key);
         rm.add("StandardLong1", cellname(0), ByteBufferUtil.bytes("b"), 0);
         rm.apply();
 
@@ -67,7 +67,7 @@ public class TimeSortTest extends SchemaLoader
 
         for (int i = 900; i < 1000; ++i)
         {
-            RowMutation rm = new RowMutation("Keyspace1", ByteBufferUtil.bytes(Integer.toString(i)));
+            Mutation rm = new Mutation("Keyspace1", ByteBufferUtil.bytes(Integer.toString(i)));
             for (int j = 0; j < 8; ++j)
             {
                 rm.add("StandardLong1", cellname(j * 2), ByteBufferUtil.bytes("a"), j * 2);
@@ -82,14 +82,14 @@ public class TimeSortTest extends SchemaLoader
 
         // interleave some new data to test memtable + sstable
         DecoratedKey key = Util.dk("900");
-        RowMutation rm = new RowMutation("Keyspace1", key.key);
+        Mutation rm = new Mutation("Keyspace1", key.key);
         for (int j = 0; j < 4; ++j)
         {
             rm.add("StandardLong1", cellname(j * 2 + 1), ByteBufferUtil.bytes("b"), j * 2 + 1);
         }
         rm.apply();
         // and some overwrites
-        rm = new RowMutation("Keyspace1", key.key);
+        rm = new Mutation("Keyspace1", key.key);
         rm.add("StandardLong1", cellname(0), ByteBufferUtil.bytes("c"), 100);
         rm.add("StandardLong1", cellname(10), ByteBufferUtil.bytes("c"), 100);
         rm.apply();