Package io.prestosql.operator

Class BigintGroupByHash

java.lang.Object

io.prestosql.operator.BigintGroupByHash

All Implemented Interfaces:

GroupByHash

public class BigintGroupByHash
extends Object
implements GroupByHash

Constructor Summary

Constructors

Constructor	Description
BigintGroupByHash(int hashChannel, boolean outputRawHash, int expectedSize, UpdateMemory updateMemory)

Method Summary

Modifier and Type	Method	Description
Work<?>	addPage(Page page)
void	appendValuesTo(int groupId, PageBuilder pageBuilder, int outputChannelOffset)
boolean	contains(int position, Page page, int[] hashChannels)
int	getCapacity()
long	getEstimatedSize()
double	getExpectedHashCollisions()
int	getGroupCount()
Work<GroupByIdBlock>	getGroupIds(Page page)
long	getHashCollisions()
long	getRawHash(int groupId)
List<Type>	getTypes()

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.prestosql.operator.GroupByHash

contains

Constructor Detail

BigintGroupByHash

public BigintGroupByHash(int hashChannel,
                         boolean outputRawHash,
                         int expectedSize,
                         UpdateMemory updateMemory)

Method Detail

getEstimatedSize

public long getEstimatedSize()

Specified by:

getEstimatedSize in interface GroupByHash

getHashCollisions

public long getHashCollisions()

Specified by:

getHashCollisions in interface GroupByHash

getExpectedHashCollisions

public double getExpectedHashCollisions()

Specified by:

getExpectedHashCollisions in interface GroupByHash

getTypes

public List<Type> getTypes()

Specified by:

getTypes in interface GroupByHash

getGroupCount

public int getGroupCount()

Specified by:

getGroupCount in interface GroupByHash

appendValuesTo

public void appendValuesTo(int groupId,
                           PageBuilder pageBuilder,
                           int outputChannelOffset)

Specified by:

appendValuesTo in interface GroupByHash

addPage

public Work<?> addPage(Page page)

Specified by:

addPage in interface GroupByHash

getGroupIds

public Work<GroupByIdBlock> getGroupIds(Page page)

Specified by:

getGroupIds in interface GroupByHash

contains

public boolean contains(int position,
                        Page page,
                        int[] hashChannels)

Specified by:

contains in interface GroupByHash

getRawHash

public long getRawHash(int groupId)

Specified by:

getRawHash in interface GroupByHash

getCapacity

public int getCapacity()

Specified by:

getCapacity in interface GroupByHash