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

Class TimeWordMapper

java.lang.Object

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

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

public class TimeWordMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text>

Author:

Sina Samangooei (ss@ecs.soton.ac.uk) A mapper which given a word with many WordDFIDF entries, outputs the word as value and the earliest time as key

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
TimeWordMapper()

Method Summary

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

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

cleanup, run, setup

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeWordMapper

public TimeWordMapper()

Method Detail

map

protected void map(org.apache.hadoop.io.Text key,
                   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.LongWritable,org.apache.hadoop.io.Text>

Throws:

IOException

InterruptedException