io.prestosql.operator.exchange

Class LocalPartitionGenerator

java.lang.Object

io.prestosql.operator.exchange.LocalPartitionGenerator

All Implemented Interfaces:

PartitionFunction

public class LocalPartitionGenerator
extends Object
implements PartitionFunction

Constructor Summary

Constructors

Constructor and Description
LocalPartitionGenerator(HashGenerator hashGenerator, int partitionCount)

Method Summary

Modifier and Type	Method and Description
int	getPartition(long rawHash)
int	getPartition(Page page, int position)
int	getPartitionCount()
long	getRawHash(Page page, int position)

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalPartitionGenerator

public LocalPartitionGenerator(HashGenerator hashGenerator,
                               int partitionCount)

Method Detail

getPartitionCount

public int getPartitionCount()

Specified by:

getPartitionCount in interface PartitionFunction

getPartition

public int getPartition(Page page,
                        int position)

Specified by:

getPartition in interface PartitionFunction

getRawHash

public long getRawHash(Page page,
                       int position)

getPartition

public int getPartition(long rawHash)