Package io.deephaven.extensions.barrage.chunk

Class FixedWidthObjectChunkWriter<T>

java.lang.Object

io.deephaven.extensions.barrage.chunk.BaseChunkWriter<ObjectChunk<T,Values>>

io.deephaven.extensions.barrage.chunk.FixedWidthChunkWriter<ObjectChunk<T,Values>>

io.deephaven.extensions.barrage.chunk.FixedWidthObjectChunkWriter<T>

All Implemented Interfaces:

ChunkWriter<ObjectChunk<T,Values>>

public abstract class FixedWidthObjectChunkWriter<T>
extends FixedWidthChunkWriter<ObjectChunk<T,Values>>

Nested Class Summary

Nested classes/interfaces inherited from class io.deephaven.extensions.barrage.chunk.BaseChunkWriter

BaseChunkWriter.ChunkTransformer<SOURCE_CHUNK_TYPE extends Chunk<Values>>, BaseChunkWriter.SerContext

Nested classes/interfaces inherited from interface io.deephaven.extensions.barrage.chunk.ChunkWriter

ChunkWriter.BufferListener, ChunkWriter.Context, ChunkWriter.DrainableColumn, ChunkWriter.Factory, ChunkWriter.FieldNodeInfo, ChunkWriter.FieldNodeListener

Field Summary

Fields inherited from class io.deephaven.extensions.barrage.chunk.BaseChunkWriter

dhNullable, elementSize, fieldNullable, PADDING_BUFFER, REMAINDER_MOD_8_MASK

Constructor Summary

Constructors

Constructor	Description
FixedWidthObjectChunkWriter(int elementSize, boolean dhNullable, boolean fieldNullable)

Method Summary

Modifier and Type	Method	Description
protected int	computeNullCount(ChunkWriter.Context context, @NotNull RowSequence subset)	Compute the number of nulls in the subset.
protected void	writeValidityBufferInternal(ChunkWriter.Context context, @NotNull RowSequence subset, @NotNull BaseChunkWriter.SerContext serContext)	Update the validity buffer for the subset.

Methods inherited from class io.deephaven.extensions.barrage.chunk.FixedWidthChunkWriter

getInputStream, writePayload

Methods inherited from class io.deephaven.extensions.barrage.chunk.BaseChunkWriter

getEmptyInputStream, getNumLongsForBitPackOfSize, getValidityMapSerializationSizeFor, isFieldNullable, makeContext

Methods inherited from class java.lang.Object

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

Constructor Details

FixedWidthObjectChunkWriter

public FixedWidthObjectChunkWriter(int elementSize,
 boolean dhNullable,
 boolean fieldNullable)

Method Details

computeNullCount

protected int computeNullCount(@NotNull
 ChunkWriter.Context context,
 @NotNull
 @NotNull RowSequence subset)

Description copied from class: BaseChunkWriter

Compute the number of nulls in the subset.

Specified by:

computeNullCount in class BaseChunkWriter<ObjectChunk<T,Values>>

Parameters:

context - the context for the chunk

subset - the subset of rows to consider

Returns:

the number of nulls in the subset

writeValidityBufferInternal

protected void writeValidityBufferInternal(@NotNull
 ChunkWriter.Context context,
 @NotNull
 @NotNull RowSequence subset,
 @NotNull
 @NotNull BaseChunkWriter.SerContext serContext)

Description copied from class: BaseChunkWriter

Update the validity buffer for the subset.

Specified by:

writeValidityBufferInternal in class BaseChunkWriter<ObjectChunk<T,Values>>

Parameters:

context - the context for the chunk

subset - the subset of rows to consider

serContext - the serialization context