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

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.CooccurrencesMapper
Enclosing class:
RowSimilarityJob

public static class RowSimilarityJob.CooccurrencesMapper
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.CooccurrencesMapper()
           
 
Method Summary
protected  void map(org.apache.hadoop.io.IntWritable column, VectorWritable occurrenceVector, 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
cleanup, run
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RowSimilarityJob.CooccurrencesMapper

public RowSimilarityJob.CooccurrencesMapper()
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 column,
                   VectorWritable occurrenceVector,
                   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


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