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

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

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


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

Constructor Detail

RowSimilarityJob.CountObservationsMapper

public RowSimilarityJob.CountObservationsMapper()
Method Detail

map

protected void map(org.apache.hadoop.io.IntWritable rowIndex,
                   VectorWritable rowVectorWritable,
                   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.NullWritable,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.NullWritable,VectorWritable>
Throws:
IOException
InterruptedException


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