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

Class CumulativeTimeWord.IntersectionUnionMap

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BooleanWritable>

org.openimaj.hadoop.tools.twitter.token.outputmode.jacard.CumulativeTimeWord.IntersectionUnionMap

Enclosing class:

CumulativeTimeWord

public static class CumulativeTimeWord.IntersectionUnionMap
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BooleanWritable>

For every word occurrence, emit for its time period, and for every time period from timePeriod + delta until eldestTime. The final time period should be comparing itself to every word ever emitted.

Author:

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

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

Constructors

Constructor and Description
IntersectionUnionMap()

Method Summary

Modifier and Type	Method and Description
protected void	map(org.apache.hadoop.io.Text word, org.apache.hadoop.io.BytesWritable value, org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

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

cleanup, run

Methods inherited from class java.lang.Object

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

Constructor Detail

IntersectionUnionMap

public IntersectionUnionMap()

Method Detail

setup

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

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BooleanWritable>

Throws:

IOException

InterruptedException

map

protected void map(org.apache.hadoop.io.Text word,
                   org.apache.hadoop.io.BytesWritable value,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws IOException,
                   InterruptedException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.BooleanWritable>

Throws:

IOException

InterruptedException