svn commit: r1372646 - in /lucene/dev/branches/branch_4x: ./ lucene/ lucene/CHANGES.txt lucene/core/ lucene/core/src/java/org/apache/lucene/index/IndexReader.java

[rm...@apache.org]

Author: rmuir
Date: Mon Aug 13 22:03:50 2012
New Revision: 1372646

URL: http://svn.apache.org/viewvc?rev=1372646&view=rev
Log:
LUCENE-4152: add one syllable method to enumerate subreaders

Modified:
    lucene/dev/branches/branch_4x/   (props changed)
    lucene/dev/branches/branch_4x/lucene/   (props changed)
    lucene/dev/branches/branch_4x/lucene/CHANGES.txt   (contents, props changed)
    lucene/dev/branches/branch_4x/lucene/core/   (props changed)
    lucene/dev/branches/branch_4x/lucene/core/src/java/org/apache/lucene/index/IndexReader.java

Modified: lucene/dev/branches/branch_4x/lucene/CHANGES.txt
URL: http://svn.apache.org/viewvc/lucene/dev/branches/branch_4x/lucene/CHANGES.txt?rev=1372646&r1=1372645&r2=1372646&view=diff
==============================================================================
--- lucene/dev/branches/branch_4x/lucene/CHANGES.txt (original)
+++ lucene/dev/branches/branch_4x/lucene/CHANGES.txt Mon Aug 13 22:03:50 2012
@@ -31,6 +31,10 @@ API Changes
   and exposes Iterator, so you can iterate over field names with
   for (String field : fields) instead.  (Robert Muir)
 
+* LUCENE-4152: added IndexReader.leaves(), which lets you enumerate
+  the leaf atomic reader contexts for all readers in the tree.
+  (Uwe Schindler, Robert Muir)
+
 Bug Fixes
 
 * LUCENE-4297: BooleanScorer2 would multiply the coord() factor

Modified: lucene/dev/branches/branch_4x/lucene/core/src/java/org/apache/lucene/index/IndexReader.java
URL: http://svn.apache.org/viewvc/lucene/dev/branches/branch_4x/lucene/core/src/java/org/apache/lucene/index/IndexReader.java?rev=1372646&r1=1372645&r2=1372646&view=diff
==============================================================================
--- lucene/dev/branches/branch_4x/lucene/core/src/java/org/apache/lucene/index/IndexReader.java (original)
+++ lucene/dev/branches/branch_4x/lucene/core/src/java/org/apache/lucene/index/IndexReader.java Mon Aug 13 22:03:50 2012
@@ -21,6 +21,7 @@ import java.io.Closeable;
 import java.io.IOException;
 import java.util.Collections;
 import java.util.LinkedHashSet;
+import java.util.List;
 import java.util.WeakHashMap;
 import java.util.Set;
 import java.util.concurrent.atomic.AtomicInteger;
@@ -485,6 +486,13 @@ public abstract class IndexReader implem
    * @lucene.experimental
    */
   public abstract IndexReaderContext getTopReaderContext();
+  
+  /**
+   * Returns the reader's leaves, or itself if this reader is Atomic.
+   */
+  public final List<AtomicReaderContext> leaves() {
+    return getTopReaderContext().leaves();
+  }
 
   /** Expert: Returns a key for this IndexReader, so FieldCache/CachingWrapperFilter can find
    * it again.