org.apache.mahout.clustering.spectral

Class VectorMatrixMultiplicationJob.VectorMatrixMultiplicationMapper

java.lang.Object

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

org.apache.mahout.clustering.spectral.VectorMatrixMultiplicationJob.VectorMatrixMultiplicationMapper

Enclosing class:

VectorMatrixMultiplicationJob

public static class VectorMatrixMultiplicationJob.VectorMatrixMultiplicationMapper
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

Constructors

Constructor and Description
VectorMatrixMultiplicationJob.VectorMatrixMultiplicationMapper()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	map(org.apache.hadoop.io.IntWritable key, VectorWritable row, org.apache.hadoop.mapreduce.Mapper.Context ctx)
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

VectorMatrixMultiplicationJob.VectorMatrixMultiplicationMapper

public VectorMatrixMultiplicationJob.VectorMatrixMultiplicationMapper()

Method Detail

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.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>

Throws:

IOException

InterruptedException

map

protected void map(org.apache.hadoop.io.IntWritable key,
       VectorWritable row,
       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