Package io.trino.operator.exchange

Class LocalPartitionGenerator

java.lang.Object

io.trino.operator.exchange.LocalPartitionGenerator

All Implemented Interfaces:

PartitionFunction

public class LocalPartitionGenerator
extends Object
implements PartitionFunction

Constructor Summary

Constructors

Constructor	Description
LocalPartitionGenerator(HashGenerator hashGenerator, int partitionCount)

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Details

LocalPartitionGenerator

public LocalPartitionGenerator(HashGenerator hashGenerator,
 int partitionCount)

Method Details

partitionCount

public int partitionCount()

Specified by:

partitionCount in interface PartitionFunction

getPartition

public int getPartition(Page page,
 int position)

Specified by:

getPartition in interface PartitionFunction

Parameters:

page - the arguments to bucketing function in order (no extra columns)

getRawHash

public long getRawHash(Page page,
 int position)

getPartition

public int getPartition(long rawHash)