org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners
Class WeightedRangePartitioner

java.lang.Object
  org.apache.hadoop.mapreduce.Partitioner<PigNullableWritable,org.apache.hadoop.io.Writable>
      org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.WeightedRangePartitioner

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable

public class WeightedRangePartitioner
extends org.apache.hadoop.mapreduce.Partitioner<PigNullableWritable,org.apache.hadoop.io.Writable>
implements org.apache.hadoop.conf.Configurable

Field Summary

static Map<PigNullableWritable,DiscreteProbabilitySampleGenerator>

weightedParts

Constructor Summary

WeightedRangePartitioner()

Method Summary

org.apache.hadoop.conf.Configuration	getConf()
int	getPartition(PigNullableWritable key, org.apache.hadoop.io.Writable value, int numPartitions)
void	setConf(org.apache.hadoop.conf.Configuration configuration)

Methods inherited from class java.lang.Object

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

Field Detail

weightedParts

public static final Map<PigNullableWritable,DiscreteProbabilitySampleGenerator> weightedParts

Constructor Detail

WeightedRangePartitioner

public WeightedRangePartitioner()

Method Detail

getPartition

public int getPartition(PigNullableWritable key,
                        org.apache.hadoop.io.Writable value,
                        int numPartitions)

Specified by:

getPartition in class org.apache.hadoop.mapreduce.Partitioner<PigNullableWritable,org.apache.hadoop.io.Writable>

setConf

public void setConf(org.apache.hadoop.conf.Configuration configuration)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

getConf

public org.apache.hadoop.conf.Configuration getConf()

Specified by:

getConf in interface org.apache.hadoop.conf.Configurable