org.apache.mahout.cf.taste.example.email

Class MailToDictionaryReducer

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,VarIntWritable,org.apache.hadoop.io.Text,VarIntWritable>

org.apache.mahout.cf.taste.example.email.MailToDictionaryReducer

public final class MailToDictionaryReducer
extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,VarIntWritable,org.apache.hadoop.io.Text,VarIntWritable>

Key: the string id Value: the count Out Key: the string id Out Value: the sum of the counts

Nested Class Summary

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

org.apache.hadoop.mapreduce.Reducer.Context

Constructor Summary

Constructors

Constructor and Description
MailToDictionaryReducer()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	reduce(org.apache.hadoop.io.Text key, Iterable<VarIntWritable> values, org.apache.hadoop.mapreduce.Reducer.Context context)

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

cleanup, run, setup

Methods inherited from class java.lang.Object

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

Constructor Detail

MailToDictionaryReducer

public MailToDictionaryReducer()

Method Detail

reduce

protected void reduce(org.apache.hadoop.io.Text key,
          Iterable<VarIntWritable> values,
          org.apache.hadoop.mapreduce.Reducer.Context context)
               throws IOException,
                      InterruptedException

Overrides:

reduce in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,VarIntWritable,org.apache.hadoop.io.Text,VarIntWritable>

Throws:

IOException

InterruptedException