org.apache.mahout.cf.taste.hadoop.cooccurence
Class ItemBigramGenerator.UserItemMapper

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by org.apache.mahout.cf.taste.hadoop.cooccurence.ItemBigramGenerator.UserItemMapper
All Implemented Interfaces:
java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.VIntWritable,org.apache.hadoop.io.VIntWritable>
Enclosing class:
ItemBigramGenerator

public static class ItemBigramGenerator.UserItemMapper
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.VIntWritable,org.apache.hadoop.io.VIntWritable>


Constructor Summary
ItemBigramGenerator.UserItemMapper()
           
 
Method Summary
 void configure(org.apache.hadoop.mapred.JobConf conf)
           
 void map(org.apache.hadoop.io.LongWritable lineNumber, org.apache.hadoop.io.Text userPrefEntry, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.VIntWritable,org.apache.hadoop.io.VIntWritable> output, org.apache.hadoop.mapred.Reporter reporter)
           
 
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase
close
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.io.Closeable
close
 

Constructor Detail

ItemBigramGenerator.UserItemMapper

public ItemBigramGenerator.UserItemMapper()
Method Detail

configure

public void configure(org.apache.hadoop.mapred.JobConf conf)
Specified by:
configure in interface org.apache.hadoop.mapred.JobConfigurable
Overrides:
configure in class org.apache.hadoop.mapred.MapReduceBase

map

public void map(org.apache.hadoop.io.LongWritable lineNumber,
                org.apache.hadoop.io.Text userPrefEntry,
                org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.VIntWritable,org.apache.hadoop.io.VIntWritable> 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,org.apache.hadoop.io.Text,org.apache.hadoop.io.VIntWritable,org.apache.hadoop.io.VIntWritable>
Throws:
java.io.IOException


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