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org.apache.crunch.impl.mr.run
Class CrunchReducer

java.lang.Object
  org.apache.hadoop.mapreduce.Reducer<Object,Object,Object,Object>
      org.apache.crunch.impl.mr.run.CrunchReducer

Direct Known Subclasses:

CrunchCombiner

public class CrunchReducer
extends org.apache.hadoop.mapreduce.Reducer<Object,Object,Object,Object>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer

org.apache.hadoop.mapreduce.Reducer.Context

Constructor Summary

CrunchReducer()

Method Summary

protected void	cleanup(org.apache.hadoop.mapreduce.Reducer.Context context)
protected NodeContext	getNodeContext()
protected void	reduce(Object key, Iterable<Object> values, org.apache.hadoop.mapreduce.Reducer.Context context)
protected void	setup(org.apache.hadoop.mapreduce.Reducer.Context context)

Methods inherited from class org.apache.hadoop.mapreduce.Reducer

run

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CrunchReducer

public CrunchReducer()

Method Detail

getNodeContext

protected NodeContext getNodeContext()

setup

protected void setup(org.apache.hadoop.mapreduce.Reducer.Context context)

Overrides:

setup in class org.apache.hadoop.mapreduce.Reducer<Object,Object,Object,Object>

reduce

protected void reduce(Object key,
                      Iterable<Object> values,
                      org.apache.hadoop.mapreduce.Reducer.Context context)

Overrides:

reduce in class org.apache.hadoop.mapreduce.Reducer<Object,Object,Object,Object>

cleanup

protected void cleanup(org.apache.hadoop.mapreduce.Reducer.Context context)

Overrides:

cleanup in class org.apache.hadoop.mapreduce.Reducer<Object,Object,Object,Object>