org.apache.mahout.math.hadoop
Class TransposeJob.MergeVectorsReducer

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by org.apache.mahout.math.hadoop.TransposeJob.MergeVectorsReducer
All Implemented Interfaces:
Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,org.apache.hadoop.io.WritableComparable<?>,VectorWritable>
Enclosing class:
TransposeJob

public static class TransposeJob.MergeVectorsReducer
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,org.apache.hadoop.io.WritableComparable<?>,VectorWritable>


Constructor Summary
TransposeJob.MergeVectorsReducer()
           
 
Method Summary
 void reduce(org.apache.hadoop.io.WritableComparable<?> key, Iterator<VectorWritable> vectors, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.WritableComparable<?>,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

TransposeJob.MergeVectorsReducer

public TransposeJob.MergeVectorsReducer()
Method Detail

reduce

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


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