com.thinkaurelius.titan.hadoop.mapreduce.sideeffect

Class ValueGroupCountMapReduce.Combiner

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.LongWritable>

com.thinkaurelius.titan.hadoop.mapreduce.sideeffect.ValueGroupCountMapReduce.Combiner

Enclosing class:

ValueGroupCountMapReduce

public static class ValueGroupCountMapReduce.Combiner
extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.LongWritable>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer

org.apache.hadoop.mapreduce.Reducer.Context

Constructor Summary

Constructors

Constructor and Description
Combiner()

Method Summary

Modifier and Type	Method and Description
void	reduce(org.apache.hadoop.io.WritableComparable key, Iterable<org.apache.hadoop.io.LongWritable> values, org.apache.hadoop.mapreduce.Reducer.Context context)

Methods inherited from class org.apache.hadoop.mapreduce.Reducer

cleanup, run, setup

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Combiner

public Combiner()

Method Detail

reduce

public void reduce(org.apache.hadoop.io.WritableComparable key,
                   Iterable<org.apache.hadoop.io.LongWritable> values,
                   org.apache.hadoop.mapreduce.Reducer.Context context)
            throws IOException,
                   InterruptedException

Overrides:

reduce in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.LongWritable>

Throws:

IOException

InterruptedException