Package io.trino.spi.block

Class RowBlockBuilder

java.lang.Object

io.trino.spi.block.RowBlockBuilder

All Implemented Interfaces:

BlockBuilder

public class RowBlockBuilder
extends Object
implements BlockBuilder

Constructor Summary

Constructors

Constructor	Description
RowBlockBuilder(List<Type> fieldTypes, BlockBuilderStatus blockBuilderStatus, int expectedEntries)

Method Summary

Modifier and Type	Method	Description
BlockBuilder	appendNull()	Appends a null value to the block.
Block	build()	Builds the block.
<E extends Throwable> void	buildEntry(RowValueBuilder<E> builder)
RowBlock	buildValueBlock()	Builds a ValueBlock.
int	getPositionCount()	Returns the number of positions in this block builder.
long	getRetainedSizeInBytes()	Returns the retained size of this block in memory, including over-allocations.
long	getSizeInBytes()	Returns the size of this block as if it was compacted, ignoring any over-allocations and any unloaded nested blocks.
BlockBuilder	newBlockBuilderLike(int expectedEntries, BlockBuilderStatus blockBuilderStatus)	Creates a new block builder of the same type based on the current usage statistics of this block builder.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.trino.spi.block.BlockBuilder

newBlockBuilderLike

Constructor Details

RowBlockBuilder

public RowBlockBuilder(List<Type> fieldTypes,
 BlockBuilderStatus blockBuilderStatus,
 int expectedEntries)

Method Details

getPositionCount

public int getPositionCount()

Description copied from interface: BlockBuilder

Returns the number of positions in this block builder.

Specified by:

getPositionCount in interface BlockBuilder

getSizeInBytes

public long getSizeInBytes()

Description copied from interface: BlockBuilder

Returns the size of this block as if it was compacted, ignoring any over-allocations and any unloaded nested blocks. For example, in dictionary blocks, this only counts each dictionary entry once, rather than each time a value is referenced.

Specified by:

getSizeInBytes in interface BlockBuilder

getRetainedSizeInBytes

public long getRetainedSizeInBytes()

Description copied from interface: BlockBuilder

Returns the retained size of this block in memory, including over-allocations. This method is called from the innermost execution loop and must be fast.

Specified by:

getRetainedSizeInBytes in interface BlockBuilder

buildEntry

public <E extends Throwable> void buildEntry(RowValueBuilder<E> builder)
                                      throws E

Throws:

E extends Throwable

appendNull

public BlockBuilder appendNull()

Description copied from interface: BlockBuilder

Appends a null value to the block.

Specified by:

appendNull in interface BlockBuilder

build

public Block build()

Description copied from interface: BlockBuilder

Builds the block. This method can be called multiple times. The return value may be a block such as RLE to allow for optimizations when all block values are the same.

Specified by:

build in interface BlockBuilder

buildValueBlock

public RowBlock buildValueBlock()

Description copied from interface: BlockBuilder

Builds a ValueBlock. This method can be called multiple times.

Specified by:

buildValueBlock in interface BlockBuilder

toString

public String toString()

Overrides:

toString in class Object

newBlockBuilderLike

public BlockBuilder newBlockBuilderLike(int expectedEntries,
 BlockBuilderStatus blockBuilderStatus)

Description copied from interface: BlockBuilder

Creates a new block builder of the same type based on the current usage statistics of this block builder.

Specified by:

newBlockBuilderLike in interface BlockBuilder