org.apache.mahout.utils

Class ConcatenateVectorsReducer

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>

org.apache.mahout.utils.ConcatenateVectorsReducer

public class ConcatenateVectorsReducer
extends org.apache.hadoop.mapreduce.Reducer<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.Reducer

org.apache.hadoop.mapreduce.Reducer.Context

Constructor Summary

Constructors

Constructor and Description
ConcatenateVectorsReducer()

Method Summary

Methods

Modifier and Type	Method and Description
void	reduce(org.apache.hadoop.io.IntWritable row, Iterable<VectorWritable> vectorWritableIterable, org.apache.hadoop.mapreduce.Reducer.Context ctx)
void	setup(org.apache.hadoop.mapreduce.Reducer.Context context)

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

cleanup, run

Methods inherited from class java.lang.Object

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

Constructor Detail

ConcatenateVectorsReducer

public ConcatenateVectorsReducer()

Method Detail

setup

public void setup(org.apache.hadoop.mapreduce.Reducer.Context context)
           throws IOException,
                  InterruptedException

Overrides:

setup in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>

Throws:

IOException

InterruptedException

reduce

public void reduce(org.apache.hadoop.io.IntWritable row,
          Iterable<VectorWritable> vectorWritableIterable,
          org.apache.hadoop.mapreduce.Reducer.Context ctx)
            throws IOException,
                   InterruptedException

Overrides:

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

Throws:

IOException

InterruptedException