org.apache.mahout.math.hadoop.similarity
Class VectorDistanceMapper

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,StringTuple,org.apache.hadoop.io.DoubleWritable>
      extended by org.apache.mahout.math.hadoop.similarity.VectorDistanceMapper

public final class VectorDistanceMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,StringTuple,org.apache.hadoop.io.DoubleWritable>


Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper
org.apache.hadoop.mapreduce.Mapper.Context
 
Constructor Summary
VectorDistanceMapper()
           
 
Method Summary
protected  void map(org.apache.hadoop.io.WritableComparable<?> key, VectorWritable value, org.apache.hadoop.mapreduce.Mapper.Context context)
           
protected  void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
           
 
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

VectorDistanceMapper

public VectorDistanceMapper()
Method Detail

map

protected void map(org.apache.hadoop.io.WritableComparable<?> key,
                   VectorWritable value,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws IOException,
                   InterruptedException
Overrides:
map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,StringTuple,org.apache.hadoop.io.DoubleWritable>
Throws:
IOException
InterruptedException

setup

protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
              throws IOException,
                     InterruptedException
Overrides:
setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,StringTuple,org.apache.hadoop.io.DoubleWritable>
Throws:
IOException
InterruptedException


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