edu.yale.cs.hadoopdb.dataloader
Class GlobalHasher.Reduce

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by edu.yale.cs.hadoopdb.dataloader.GlobalHasher.Reduce
All Implemented Interfaces:
java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<GlobalHasher.UnsortableInt,org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text>
Enclosing class:
GlobalHasher

public static class GlobalHasher.Reduce
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Reducer<GlobalHasher.UnsortableInt,org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text>


Field Summary
private  org.apache.hadoop.io.NullWritable nullKey
           
 
Constructor Summary
GlobalHasher.Reduce()
           
 
Method Summary
 void reduce(GlobalHasher.UnsortableInt key, java.util.Iterator<org.apache.hadoop.io.Text> values, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text> 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
 

Field Detail

nullKey

private org.apache.hadoop.io.NullWritable nullKey
Constructor Detail

GlobalHasher.Reduce

public GlobalHasher.Reduce()
Method Detail

reduce

public void reduce(GlobalHasher.UnsortableInt key,
                   java.util.Iterator<org.apache.hadoop.io.Text> values,
                   org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text> output,
                   org.apache.hadoop.mapred.Reporter reporter)
            throws java.io.IOException
Specified by:
reduce in interface org.apache.hadoop.mapred.Reducer<GlobalHasher.UnsortableInt,org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text>
Throws:
java.io.IOException