de.kumpe.hadooptimizer.hadoop
Class SelectionReducer<K,V>

java.lang.Object
  org.apache.hadoop.mapreduce.Reducer<K,V,K,V>
      de.kumpe.hadooptimizer.hadoop.SelectionReducer<K,V>

public final class SelectionReducer<K,V>
extends org.apache.hadoop.mapreduce.Reducer<K,V,K,V>

A Reducer implementation for the selection of an evolutionary algorithm. It outputs the best evaluated individuals and discards the rest.

Author:

Christian Kumpe

Nested Class Summary

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

org.apache.hadoop.mapreduce.Reducer.Context

Constructor Summary

SelectionReducer()

Method Summary

void	run(org.apache.hadoop.mapreduce.Reducer.Context context)
static void	setParents(org.apache.hadoop.mapreduce.Job job, long survivors)
protected void	setup(org.apache.hadoop.mapreduce.Reducer.Context context)

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

cleanup, reduce

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectionReducer

public SelectionReducer()

Method Detail

setParents

public static void setParents(org.apache.hadoop.mapreduce.Job job,
                              long survivors)

setup

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

Overrides:

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

Throws:

IOException

InterruptedException

run

public void run(org.apache.hadoop.mapreduce.Reducer.Context context)
         throws IOException,
                InterruptedException

Overrides:

run in class org.apache.hadoop.mapreduce.Reducer<K,V,K,V>

Throws:

IOException

InterruptedException