org.apache.mahout.math.hadoop
Class MatrixMultiplicationJob.MatrixMultiplicationReducer

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by org.apache.mahout.math.hadoop.MatrixMultiplicationJob.MatrixMultiplicationReducer
All Implemented Interfaces:
Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
Enclosing class:
MatrixMultiplicationJob

public static class MatrixMultiplicationJob.MatrixMultiplicationReducer
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>


Constructor Summary
MatrixMultiplicationJob.MatrixMultiplicationReducer()
           
 
Method Summary
 void reduce(org.apache.hadoop.io.IntWritable rowNum, Iterator<VectorWritable> it, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.IntWritable,VectorWritable> out, org.apache.hadoop.mapred.Reporter reporter)
           
 
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase
close, configure
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.apache.hadoop.mapred.JobConfigurable
configure
 
Methods inherited from interface java.io.Closeable
close
 

Constructor Detail

MatrixMultiplicationJob.MatrixMultiplicationReducer

public MatrixMultiplicationJob.MatrixMultiplicationReducer()
Method Detail

reduce

public void reduce(org.apache.hadoop.io.IntWritable rowNum,
                   Iterator<VectorWritable> it,
                   org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.IntWritable,VectorWritable> out,
                   org.apache.hadoop.mapred.Reporter reporter)
            throws IOException
Specified by:
reduce in interface org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
Throws:
IOException


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