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

Fields

Modifier and Type	Field and Description
static java.util.Map<PigNullableWritable,DiscreteProbabilitySampleGenerator>	weightedParts

Constructor Summary

Constructors

Constructor and Description
WeightedRangePartitioner()

Method Summary

Modifier and Type	Method and Description
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 java.util.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