Package io.deephaven.engine.page

Interface Page.WithDefaultsForRepeatingValues<ATTR extends Any>

All Superinterfaces:

ChunkSource<ATTR>, DefaultChunkSource<ATTR>, FillContextMaker, GetContextMaker, Page<ATTR>, PagingChunkSource<ATTR>

All Known Implementing Classes:

ColumnRegion.Null, ColumnRegionByte.Constant, ColumnRegionByte.Null, ColumnRegionChar.Constant, ColumnRegionChar.Null, ColumnRegionDouble.Constant, ColumnRegionDouble.Null, ColumnRegionFloat.Constant, ColumnRegionFloat.Null, ColumnRegionInt.Constant, ColumnRegionInt.Null, ColumnRegionLong.Constant, ColumnRegionLong.Null, ColumnRegionObject.Constant, ColumnRegionObject.Null, ColumnRegionReferencing.Null, ColumnRegionShort.Constant, ColumnRegionShort.Null

Enclosing interface:

Page<ATTR extends Any>

public static interface Page.WithDefaultsForRepeatingValues<ATTR extends Any>
extends Page<ATTR>, DefaultChunkSource<ATTR>

Helper defaults for pages that represent a repeating value, e.g. null or partitioning column regions.

Nested Class Summary

Nested classes/interfaces inherited from interface io.deephaven.engine.table.ChunkSource

ChunkSource.FillContext, ChunkSource.GetContext

Nested classes/interfaces inherited from interface io.deephaven.engine.table.impl.DefaultChunkSource

DefaultChunkSource.SupportsContiguousGet<ATTR extends Any>, DefaultChunkSource.WithPrev<ATTR extends Any>

Nested classes/interfaces inherited from interface io.deephaven.engine.page.Page

Page.WithDefaults<ATTR extends Any>, Page.WithDefaultsForRepeatingValues<ATTR extends Any>

Field Summary

Fields inherited from interface io.deephaven.engine.table.ChunkSource

DEFAULT_FILL_INSTANCE, ZERO_LENGTH_CHUNK_SOURCE_ARRAY

Method Summary

Modifier and Type	Method	Description
default void	fillChunk(@NotNull ChunkSource.FillContext context, @NotNull WritableChunk<? super ATTR> destination, @NotNull RowSequence rowSequence)	Populates the given destination chunk with data corresponding to the keys from the given RowSequence.
void	fillChunkAppend(@NotNull ChunkSource.FillContext context, @NotNull WritableChunk<? super ATTR> destination, int length)	Appends the values repeating value length times to destination.
default void	fillChunkAppend(@NotNull ChunkSource.FillContext context, @NotNull WritableChunk<? super ATTR> destination, RowSequence.Iterator rowSequenceIterator)	Similar to ChunkSource.fillChunk(FillContext, WritableChunk, RowSequence), except that the values are appended to destination, rather than placed at the beginning.

Methods inherited from interface io.deephaven.engine.table.ChunkSource

getChunkType

Methods inherited from interface io.deephaven.engine.table.impl.DefaultChunkSource

getChunk, getChunk, getChunkByFilling, makeGetContext

Methods inherited from interface io.deephaven.engine.table.FillContextMaker

makeFillContext

Methods inherited from interface io.deephaven.engine.table.GetContextMaker

makeGetContext

Methods inherited from interface io.deephaven.engine.page.Page

advanceToNextPage, advanceToNextPage, advanceToNextPageAndGetPositionDistance, firstRow, firstRowOffset, getRowOffset

Methods inherited from interface io.deephaven.engine.page.PagingChunkSource

makeFillContext, mask, maxRow

Method Details

fillChunkAppend

@FinalDefault
default void fillChunkAppend(@NotNull
 @NotNull ChunkSource.FillContext context,
 @NotNull
 @NotNull WritableChunk<? super ATTR> destination,
 @NotNull
 RowSequence.Iterator rowSequenceIterator)

Description copied from interface: PagingChunkSource

Similar to ChunkSource.fillChunk(FillContext, WritableChunk, RowSequence), except that the values are appended to destination, rather than placed at the beginning.

The values to fill into destination are specified by rowSequenceIterator, whose RowSequence.firstRowKey() must exist, and must be represented by this PagingChunkSource (modulo PagingChunkSource.mask()), otherwise results are undefined.

All values specified by rowSequenceIterator that are on the same page as its next row key will be appended to destination. Row keys are on the same page when the bits outside of PagingChunkSource.mask() are identical.

Specified by:

fillChunkAppend in interface PagingChunkSource<ATTR extends Any>

Parameters:

context - A context containing all mutable/state related data used in filling destination

destination - The WritableChunk to append the results to

rowSequenceIterator - An iterator over the remaining row keys specifying the values to retrieve, which contains at least the keys to extract from this PagingChunkSource

fillChunk

@FinalDefault
default void fillChunk(@NotNull
 @NotNull ChunkSource.FillContext context,
 @NotNull
 @NotNull WritableChunk<? super ATTR> destination,
 @NotNull
 @NotNull RowSequence rowSequence)

Description copied from interface: ChunkSource

Populates the given destination chunk with data corresponding to the keys from the given RowSequence.

Specified by:

fillChunk in interface ChunkSource<ATTR extends Any>

Parameters:

context - A context containing all mutable/state related data used in retrieving the Chunk.

destination - The chunk to be populated according to rowSequence. No assumptions shall be made about the size of the chunk shall be made. The chunk will be populated from position [0,rowSequence.size()).

rowSequence - An RowSequence representing the keys to be fetched

fillChunkAppend

void fillChunkAppend(@NotNull
 @NotNull ChunkSource.FillContext context,
 @NotNull
 @NotNull WritableChunk<? super ATTR> destination,
 int length)

Appends the values repeating value length times to destination.