org.openimaj.hadoop.tools.twitter.token.mode.dfidf

Class CountWordsAcrossTimeperiod.Map

java.lang.Object

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

org.openimaj.hadoop.tools.twitter.token.mode.dfidf.CountWordsAcrossTimeperiod.Map

Enclosing class:

CountWordsAcrossTimeperiod

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

function(timePeriodLength) map input: ,,,...> map output: [ word: , word: , ... ]

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
Map() Mapper constructor doesn't do anything (Mapper constructor doesn't give a fuck)

Method Summary

Modifier and Type	Method and Description
protected static void	loadOptions(org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	map(org.apache.hadoop.io.LongWritable key, 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

Map

public Map()

Mapper constructor doesn't do anything (Mapper constructor doesn't give a fuck)

Method Detail

loadOptions

protected static void loadOptions(org.apache.hadoop.mapreduce.Mapper.Context context)
                           throws IOException

Throws:

IOException

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

Throws:

IOException

InterruptedException

map

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

Throws:

IOException

InterruptedException