org.apache.mahout.common.mapreduce

Class MergeVectorsCombiner

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,org.apache.hadoop.io.WritableComparable<?>,VectorWritable>

org.apache.mahout.common.mapreduce.MergeVectorsCombiner

public class MergeVectorsCombiner
extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,org.apache.hadoop.io.WritableComparable<?>,VectorWritable>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer

org.apache.hadoop.mapreduce.Reducer.Context

Constructor Summary

Constructors

Constructor and Description
MergeVectorsCombiner()

Method Summary

Methods

Modifier and Type	Method and Description
void	reduce(org.apache.hadoop.io.WritableComparable<?> key, Iterable<VectorWritable> vectors, org.apache.hadoop.mapreduce.Reducer.Context ctx)

Methods inherited from class org.apache.hadoop.mapreduce.Reducer

cleanup, run, setup

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MergeVectorsCombiner

public MergeVectorsCombiner()

Method Detail

reduce

public void reduce(org.apache.hadoop.io.WritableComparable<?> key,
          Iterable<VectorWritable> vectors,
          org.apache.hadoop.mapreduce.Reducer.Context ctx)
            throws IOException,
                   InterruptedException

Overrides:

reduce in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,org.apache.hadoop.io.WritableComparable<?>,VectorWritable>

Throws:

IOException

InterruptedException