org.apache.mahout.cf.taste.hadoop.cooccurence
Class UserItemRecommender.RecommenderReducer

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by org.apache.mahout.cf.taste.hadoop.cooccurence.UserItemRecommender.RecommenderReducer
All Implemented Interfaces:
java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<Bigram,TupleWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
Enclosing class:
UserItemRecommender

public static class UserItemRecommender.RecommenderReducer
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Reducer<Bigram,TupleWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>


Constructor Summary
UserItemRecommender.RecommenderReducer()
           
 
Method Summary
 void configure(org.apache.hadoop.mapred.JobConf conf)
           
 void outputSorted(int userId, java.util.Collection<java.util.Map.Entry<java.lang.Long,java.lang.Double>> recomSet, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output)
           
 void reduce(Bigram userSeenItem, java.util.Iterator<TupleWritable> candTupleItr, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output, org.apache.hadoop.mapred.Reporter reporter)
           
 
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase
close
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.io.Closeable
close
 

Constructor Detail

UserItemRecommender.RecommenderReducer

public UserItemRecommender.RecommenderReducer()
Method Detail

configure

public void configure(org.apache.hadoop.mapred.JobConf conf)
Specified by:
configure in interface org.apache.hadoop.mapred.JobConfigurable
Overrides:
configure in class org.apache.hadoop.mapred.MapReduceBase

reduce

public void reduce(Bigram userSeenItem,
                   java.util.Iterator<TupleWritable> candTupleItr,
                   org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output,
                   org.apache.hadoop.mapred.Reporter reporter)
            throws java.io.IOException
Specified by:
reduce in interface org.apache.hadoop.mapred.Reducer<Bigram,TupleWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
Throws:
java.io.IOException

outputSorted

public void outputSorted(int userId,
                         java.util.Collection<java.util.Map.Entry<java.lang.Long,java.lang.Double>> recomSet,
                         org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output)
                  throws java.io.IOException
Throws:
java.io.IOException


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