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oracle.hadoop.balancer.examples.invindx
Class InvertedIndexMapred

java.lang.Object
org.apache.hadoop.conf.Configured
oracle.hadoop.balancer.examples.invindx.InvertedIndexMapred

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

public class InvertedIndexMapred

extends org.apache.hadoop.conf.Configured

implements org.apache.hadoop.util.Tool

Inverted Index with Mapred API. It contains mapper class, reducer class and a driver.

Nested Class Summary

static class	InvertedIndexMapred.InvertedIndexMapper Inverted Index mapper class for TextInputFormat and FileSplit This class uses the file name obtained from FileSplit as the location of the word, and the value of the LongWritable key of TextInputFormat as the offset of the word in that file.
static class	InvertedIndexMapred.InvertedIndexReducer The inverted index reducer class for mapred API

Constructor Summary

InvertedIndexMapred()

Method Summary

static void	main(java.lang.String[] args)
int	run(java.lang.String[] args)

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Constructor Detail

InvertedIndexMapred

public InvertedIndexMapred()

Method Detail

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception

run

public int run(java.lang.String[] args)
        throws java.lang.Exception

Specified by:

run in interface org.apache.hadoop.util.Tool

Throws:

java.lang.Exception

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