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org.apache.gora.examples.mapreduce
Class WordCount.TokenizerMapper

java.lang.Object
  org.apache.hadoop.mapreduce.Mapper<K1,V1,K2,V2>
      org.apache.gora.mapreduce.GoraMapper<String,WebPage,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>
          org.apache.gora.examples.mapreduce.WordCount.TokenizerMapper

Enclosing class:

WordCount

public static class WordCount.TokenizerMapper
extends GoraMapper<String,WebPage,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>

TokenizerMapper takes <String, WebPage> pairs as obtained from the input DataStore, and tokenizes the content via WebPage.getContent(). The tokens are emitted as <String, WebPage> pairs.

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

WordCount.TokenizerMapper()

Method Summary

protected void

map(String key, WebPage page, org.apache.hadoop.mapreduce.Mapper.Context context)

Methods inherited from class org.apache.gora.mapreduce.GoraMapper

initMapperJob, initMapperJob, initMapperJob, initMapperJob, initMapperJob

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

WordCount.TokenizerMapper

public WordCount.TokenizerMapper()

Method Detail

map

protected void map(String key,
                   WebPage page,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws IOException,
                   InterruptedException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<String,WebPage,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>

Throws:

IOException

InterruptedException