org.apache.mahout.common.mapreduce

Class VectorSumReducer

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.VectorSumReducer

public class VectorSumReducer
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
VectorSumReducer()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	reduce(org.apache.hadoop.io.WritableComparable<?> key, Iterable<VectorWritable> values, 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

VectorSumReducer

public VectorSumReducer()

Method Detail

reduce

protected void reduce(org.apache.hadoop.io.WritableComparable<?> key,
          Iterable<VectorWritable> values,
          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