Package io.trino.operator

Class FlatHash

java.lang.Object

io.trino.operator.FlatHash

public final class FlatHash
extends Object

Constructor Summary

Constructors

Constructor	Description
FlatHash(FlatHashStrategy flatHashStrategy, boolean hasPrecomputedHash, int expectedSize, UpdateMemory checkMemoryReservation)

Method Summary

Modifier and Type	Method	Description
void	appendTo(int groupId, BlockBuilder[] blockBuilders)
void	computeHashes(Block[] blocks, long[] hashes, int offset, int length)
boolean	contains(Block[] blocks, int position)
boolean	contains(Block[] blocks, int position, long hash)
boolean	ensureAvailableCapacity(int batchSize)
int	getCapacity()
long	getEstimatedSize()
int	getPhysicalPosition(int groupId)
long	hashPosition(int groupId)
int	putIfAbsent(Block[] blocks, int position)
int	putIfAbsent(Block[] blocks, int position, long hash)
int	size()
static long	sumExact(long... values)

Methods inherited from class java.lang.Object

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

Constructor Details

FlatHash

public FlatHash(FlatHashStrategy flatHashStrategy,
 boolean hasPrecomputedHash,
 int expectedSize,
 UpdateMemory checkMemoryReservation)

Method Details

getEstimatedSize

public long getEstimatedSize()

size

public int size()

getCapacity

public int getCapacity()

hashPosition

public long hashPosition(int groupId)

appendTo

public void appendTo(int groupId,
 BlockBuilder[] blockBuilders)

contains

public boolean contains(Block[] blocks,
 int position)

contains

public boolean contains(Block[] blocks,
 int position,
 long hash)

computeHashes

public void computeHashes(Block[] blocks,
 long[] hashes,
 int offset,
 int length)

putIfAbsent

public int putIfAbsent(Block[] blocks,
 int position,
 long hash)

putIfAbsent

public int putIfAbsent(Block[] blocks,
 int position)

ensureAvailableCapacity

public boolean ensureAvailableCapacity(int batchSize)

getPhysicalPosition

public int getPhysicalPosition(int groupId)

sumExact

public static long sumExact(long... values)