org.apache.mahout.cf.taste.hadoop.item
Class UserVectorToCooccurrenceMapper

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by org.apache.mahout.cf.taste.hadoop.item.UserVectorToCooccurrenceMapper
All Implemented Interfaces:
java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,VectorWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable>

public final class UserVectorToCooccurrenceMapper
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,VectorWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable>


Constructor Summary
UserVectorToCooccurrenceMapper()
           
 
Method Summary
 void map(org.apache.hadoop.io.LongWritable userID, VectorWritable userVector, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable> output, 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

UserVectorToCooccurrenceMapper

public UserVectorToCooccurrenceMapper()
Method Detail

map

public void map(org.apache.hadoop.io.LongWritable userID,
                VectorWritable userVector,
                org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable> output,
                org.apache.hadoop.mapred.Reporter reporter)
         throws java.io.IOException
Specified by:
map in interface org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,VectorWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable>
Throws:
java.io.IOException


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