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Posted to mapreduce-commits@hadoop.apache.org by cd...@apache.org on 2010/03/20 02:42:13 UTC
svn commit: r925520 - in /hadoop/mapreduce/branches/branch-0.21: CHANGES.txt
src/java/org/apache/hadoop/mapreduce/Mapper.java
src/java/org/apache/hadoop/mapreduce/Reducer.java
Author: cdouglas
Date: Sat Mar 20 01:42:12 2010
New Revision: 925520
URL: http://svn.apache.org/viewvc?rev=925520&view=rev
Log:
MAPREDUCE-1407. Update javadoc in mapreduce.{Mapper,Reducer} to match
actual usage. Contributed by Benoit Sigoure
Modified:
hadoop/mapreduce/branches/branch-0.21/CHANGES.txt
hadoop/mapreduce/branches/branch-0.21/src/java/org/apache/hadoop/mapreduce/Mapper.java
hadoop/mapreduce/branches/branch-0.21/src/java/org/apache/hadoop/mapreduce/Reducer.java
Modified: hadoop/mapreduce/branches/branch-0.21/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/mapreduce/branches/branch-0.21/CHANGES.txt?rev=925520&r1=925519&r2=925520&view=diff
==============================================================================
--- hadoop/mapreduce/branches/branch-0.21/CHANGES.txt (original)
+++ hadoop/mapreduce/branches/branch-0.21/CHANGES.txt Sat Mar 20 01:42:12 2010
@@ -948,3 +948,6 @@ Release 0.21.0 - Unreleased
MAPREDUCE-1522. FileInputFormat may use the default FileSystem for the
input path. (Tsz Wo (Nicholas), SZE via cdouglas)
+
+ MAPREDUCE-1407. Update javadoc in mapreduce.{Mapper,Reducer} to match
+ actual usage. (Benoit Sigoure via cdouglas)
Modified: hadoop/mapreduce/branches/branch-0.21/src/java/org/apache/hadoop/mapreduce/Mapper.java
URL: http://svn.apache.org/viewvc/hadoop/mapreduce/branches/branch-0.21/src/java/org/apache/hadoop/mapreduce/Mapper.java?rev=925520&r1=925519&r2=925520&view=diff
==============================================================================
--- hadoop/mapreduce/branches/branch-0.21/src/java/org/apache/hadoop/mapreduce/Mapper.java (original)
+++ hadoop/mapreduce/branches/branch-0.21/src/java/org/apache/hadoop/mapreduce/Mapper.java Sat Mar 20 01:42:12 2010
@@ -69,16 +69,16 @@ import org.apache.hadoop.mapreduce.task.
* <p>Example:</p>
* <p><blockquote><pre>
* public class TokenCounterMapper
- * extends Mapper<Object, Text, Text, IntWritable>{
+ * extends Mapper<Object, Text, Text, IntWritable>{
*
* private final static IntWritable one = new IntWritable(1);
* private Text word = new Text();
*
- * public void map(Object key, Text value, Context context) throws IOException {
+ * public void map(Object key, Text value, Context context) throws IOException, InterruptedException {
* StringTokenizer itr = new StringTokenizer(value.toString());
* while (itr.hasMoreTokens()) {
* word.set(itr.nextToken());
- * context.collect(word, one);
+ * context.write(word, one);
* }
* }
* }
@@ -141,4 +141,4 @@ public class Mapper<KEYIN, VALUEIN, KEYO
}
cleanup(context);
}
-}
\ No newline at end of file
+}
Modified: hadoop/mapreduce/branches/branch-0.21/src/java/org/apache/hadoop/mapreduce/Reducer.java
URL: http://svn.apache.org/viewvc/hadoop/mapreduce/branches/branch-0.21/src/java/org/apache/hadoop/mapreduce/Reducer.java?rev=925520&r1=925519&r2=925520&view=diff
==============================================================================
--- hadoop/mapreduce/branches/branch-0.21/src/java/org/apache/hadoop/mapreduce/Reducer.java (original)
+++ hadoop/mapreduce/branches/branch-0.21/src/java/org/apache/hadoop/mapreduce/Reducer.java Sat Mar 20 01:42:12 2010
@@ -84,7 +84,7 @@ import org.apache.hadoop.mapred.RawKeyVa
*
* <p>In this phase the
* {@link #reduce(Object, Iterable, Context)}
- * method is called for each <code><key, (collection of values)></code> in
+ * method is called for each <code><key, (collection of values)></code> in
* the sorted inputs.</p>
* <p>The output of the reduce task is typically written to a
* {@link RecordWriter} via
@@ -96,18 +96,18 @@ import org.apache.hadoop.mapred.RawKeyVa
*
* <p>Example:</p>
* <p><blockquote><pre>
- * public class IntSumReducer<Key> extends Reducer<Key,IntWritable,
- * Key,IntWritable> {
+ * public class IntSumReducer<Key> extends Reducer<Key,IntWritable,
+ * Key,IntWritable> {
* private IntWritable result = new IntWritable();
*
- * public void reduce(Key key, Iterable<IntWritable> values,
- * Context context) throws IOException {
+ * public void reduce(Key key, Iterable<IntWritable> values,
+ * Context context) throws IOException, InterruptedException {
* int sum = 0;
* for (IntWritable val : values) {
* sum += val.get();
* }
* result.set(sum);
- * context.collect(key, result);
+ * context.write(key, result);
* }
* }
* </pre></blockquote></p>