org.apache.mahout.classifier.bayes.mapreduce.cbayes
Class CBayesThetaNormalizerReducer

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by org.apache.mahout.classifier.bayes.mapreduce.cbayes.CBayesThetaNormalizerReducer
All Implemented Interfaces:
java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<StringTuple,org.apache.hadoop.io.DoubleWritable,StringTuple,org.apache.hadoop.io.DoubleWritable>

public class CBayesThetaNormalizerReducer
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Reducer<StringTuple,org.apache.hadoop.io.DoubleWritable,StringTuple,org.apache.hadoop.io.DoubleWritable>

Can also be used as a local Combiner beacuse only two values should be there inside the values


Constructor Summary
CBayesThetaNormalizerReducer()
           
 
Method Summary
 void close()
           
 void configure(org.apache.hadoop.mapred.JobConf job)
           
 void reduce(StringTuple key, java.util.Iterator<org.apache.hadoop.io.DoubleWritable> values, org.apache.hadoop.mapred.OutputCollector<StringTuple,org.apache.hadoop.io.DoubleWritable> output, org.apache.hadoop.mapred.Reporter reporter)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

CBayesThetaNormalizerReducer

public CBayesThetaNormalizerReducer()
Method Detail

reduce

public void reduce(StringTuple key,
                   java.util.Iterator<org.apache.hadoop.io.DoubleWritable> values,
                   org.apache.hadoop.mapred.OutputCollector<StringTuple,org.apache.hadoop.io.DoubleWritable> output,
                   org.apache.hadoop.mapred.Reporter reporter)
            throws java.io.IOException
Specified by:
reduce in interface org.apache.hadoop.mapred.Reducer<StringTuple,org.apache.hadoop.io.DoubleWritable,StringTuple,org.apache.hadoop.io.DoubleWritable>
Throws:
java.io.IOException

configure

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

close

public void close()
           throws java.io.IOException
Specified by:
close in interface java.io.Closeable
Overrides:
close in class org.apache.hadoop.mapred.MapReduceBase
Throws:
java.io.IOException


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