org.apache.pig.backend.hadoop.executionengine.mapreduceExec
Class PigCombine

java.lang.Object
  extended by org.apache.pig.backend.hadoop.executionengine.mapreduceExec.PigCombine
All Implemented Interfaces:
Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<Tuple,IndexedTuple,Tuple,IndexedTuple>

public class PigCombine
extends Object
implements org.apache.hadoop.mapred.Reducer<Tuple,IndexedTuple,Tuple,IndexedTuple>


Constructor Summary
PigCombine()
           
 
Method Summary
 void close()
          Nothing happens here.
 void configure(org.apache.hadoop.mapred.JobConf job)
          Just save off the PigJobConf for later use.
 void reduce(Tuple key, Iterator<IndexedTuple> values, org.apache.hadoop.mapred.OutputCollector<Tuple,IndexedTuple> output, org.apache.hadoop.mapred.Reporter reporter)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PigCombine

public PigCombine()
Method Detail

reduce

public void reduce(Tuple key,
                   Iterator<IndexedTuple> values,
                   org.apache.hadoop.mapred.OutputCollector<Tuple,IndexedTuple> output,
                   org.apache.hadoop.mapred.Reporter reporter)
            throws IOException
Specified by:
reduce in interface org.apache.hadoop.mapred.Reducer<Tuple,IndexedTuple,Tuple,IndexedTuple>
Throws:
IOException

configure

public void configure(org.apache.hadoop.mapred.JobConf job)
Just save off the PigJobConf for later use.

Specified by:
configure in interface org.apache.hadoop.mapred.JobConfigurable

close

public void close()
           throws IOException
Nothing happens here.

Specified by:
close in interface Closeable
Throws:
IOException


Copyright © ${year} The Apache Software Foundation