com.asakusafw.runtime.stage.directio

Class DirectOutputReducer

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<KEYIN,VALUEIN,KEYOUT,VALUEOUT>

com.asakusafw.runtime.flow.ReducerWithRuntimeResource<AbstractDirectOutputKey,AbstractDirectOutputValue,Object,Object>

com.asakusafw.runtime.stage.directio.DirectOutputReducer

public final class DirectOutputReducer
extends ReducerWithRuntimeResource<AbstractDirectOutputKey,AbstractDirectOutputValue,Object,Object>

Reducer for direct output.

Since:

0.2.5

Version:

0.8.1

Nested Class Summary

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

org.apache.hadoop.mapreduce.Reducer.Context

Constructor Summary

Constructors

Constructor and Description
DirectOutputReducer()

Method Summary

Modifier and Type	Method and Description
protected void	reduce(AbstractDirectOutputKey key, Iterable<AbstractDirectOutputValue> values, org.apache.hadoop.mapreduce.Reducer.Context context)
protected void	setup(org.apache.hadoop.mapreduce.Reducer.Context context)

Methods inherited from class com.asakusafw.runtime.flow.ReducerWithRuntimeResource

run, runInternal

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

cleanup

Methods inherited from class java.lang.Object

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

Constructor Detail

DirectOutputReducer

public DirectOutputReducer()

Method Detail

setup

protected void setup(org.apache.hadoop.mapreduce.Reducer.Context context)
              throws IOException,
                     InterruptedException

Overrides:

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

Throws:

IOException

InterruptedException

reduce

protected void reduce(AbstractDirectOutputKey key,
                      Iterable<AbstractDirectOutputValue> values,
                      org.apache.hadoop.mapreduce.Reducer.Context context)
               throws IOException,
                      InterruptedException

Overrides:

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

Throws:

IOException

InterruptedException