org.openimaj.hadoop.tools.twitter.token.outputmode.sparsecsv

Class WordIndex.Reduce

java.lang.Object

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

org.openimaj.hadoop.tools.twitter.token.outputmode.sparsecsv.WordIndex.Reduce

Enclosing class:

WordIndex

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

Writes each word,count

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
WordIndex.Reduce()

Method Summary

Methods

Modifier and Type	Method and Description
void	reduce(org.apache.hadoop.io.Text word, Iterable<org.apache.hadoop.io.LongWritable> counts, 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

cleanup, run

Methods inherited from class java.lang.Object

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

Constructor Detail

WordIndex.Reduce

public WordIndex.Reduce()

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<org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

Throws:

IOException

InterruptedException

reduce

public void reduce(org.apache.hadoop.io.Text word,
          Iterable<org.apache.hadoop.io.LongWritable> counts,
          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.LongWritable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

Throws:

IOException

InterruptedException