org.openimaj.hadoop.tools.fastkmeans

Class FeatureCount.Reduce

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>

org.openimaj.hadoop.tools.fastkmeans.FeatureCount.Reduce

Enclosing class:

FeatureCount

public static class FeatureCount.Reduce
extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>

Reduce class. Combines counts per map record into overall sum.

Author:

Sina Samangooei (ss@ecs.soton.ac.uk)

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
Reduce()

Method Summary

Modifier and Type	Method and Description
void	reduce(org.apache.hadoop.io.Text key, Iterable<org.apache.hadoop.io.IntWritable> values, org.apache.hadoop.mapreduce.Reducer.Context context)

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

cleanup, run, setup

Methods inherited from class java.lang.Object

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

Constructor Detail

Reduce

public Reduce()

Method Detail

reduce

public void reduce(org.apache.hadoop.io.Text key,
                   Iterable<org.apache.hadoop.io.IntWritable> values,
                   org.apache.hadoop.mapreduce.Reducer.Context context)
            throws IOException,
                   InterruptedException

Overrides:

reduce in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>

Throws:

IOException

InterruptedException