org.apache.tez.runtime.library.partitioner

Class HashPartitioner

java.lang.Object

org.apache.tez.runtime.library.partitioner.HashPartitioner

All Implemented Interfaces:

Partitioner

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public class HashPartitioner
extends Object
implements Partitioner

Implements a Partitioner that does hash based partitioning

Constructor Summary

Constructors

Constructor and Description
HashPartitioner()

Method Summary

Modifier and Type	Method and Description
int	getPartition(Object key, Object value, int numPartitions) Get partition for given key/value.

Methods inherited from class java.lang.Object

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

Constructor Detail

HashPartitioner

public HashPartitioner()

Method Detail

getPartition

public int getPartition(Object key,
                        Object value,
                        int numPartitions)

Description copied from interface: Partitioner

Get partition for given key/value.

Specified by:

getPartition in interface Partitioner

Parameters:

key - key

value - value

numPartitions - number of partitions

Returns:

partition for the given key/value