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

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,VarIntWritable,org.apache.hadoop.io.Text,VarIntWritable>
      extended by 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
MailToDictionaryReducer()
           
 
Method Summary
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


Copyright © 2008–2014 The Apache Software Foundation. All rights reserved.