org.apache.mahout.math.hadoop.similarity.cooccurrence
Class RowSimilarityJob.VectorNormMapper

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
      extended by org.apache.mahout.math.hadoop.similarity.cooccurrence.RowSimilarityJob.VectorNormMapper
Enclosing class:
RowSimilarityJob

public static class RowSimilarityJob.VectorNormMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>


Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper
org.apache.hadoop.mapreduce.Mapper.Context
 
Constructor Summary
RowSimilarityJob.VectorNormMapper()
           
 
Method Summary
protected  void cleanup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
           
protected  void map(org.apache.hadoop.io.IntWritable row, VectorWritable vectorWritable, org.apache.hadoop.mapreduce.Mapper.Context ctx)
           
protected  void setup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
           
 
Methods inherited from class org.apache.hadoop.mapreduce.Mapper
run
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RowSimilarityJob.VectorNormMapper

public RowSimilarityJob.VectorNormMapper()
Method Detail

setup

protected void setup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
              throws IOException,
                     InterruptedException
Overrides:
setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
Throws:
IOException
InterruptedException

map

protected void map(org.apache.hadoop.io.IntWritable row,
                   VectorWritable vectorWritable,
                   org.apache.hadoop.mapreduce.Mapper.Context ctx)
            throws IOException,
                   InterruptedException
Overrides:
map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
Throws:
IOException
InterruptedException

cleanup

protected void cleanup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
                throws IOException,
                       InterruptedException
Overrides:
cleanup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
Throws:
IOException
InterruptedException


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