Package com.illumon.iris.db.v2.sources.chunk.page

Interface Page.WithDefaultsForRepeatingValues<ATTR extends Attributes.Any>

All Superinterfaces:

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

All Known Implementing Classes:

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

Enclosing interface:

Page<ATTR extends Attributes.Any>

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

This has helper defaults for columns that just represent a repeating value (such as null or partition columns).

Nested Class Summary

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.sources.chunk.ChunkSource

ChunkSource.FillContext, ChunkSource.GetContext, ChunkSource.WithPrev<ATTR extends Attributes.Any>

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.sources.chunk.DefaultChunkSource

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

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.sources.chunk.page.Page

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

Field Summary

Fields inherited from interface com.illumon.iris.db.v2.sources.chunk.ChunkSource

DEFAULT_FILL_INSTANCE, ZERO_LENGTH_CHUNK_SOURCE_ARRAY

Method Summary

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

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.ChunkSource

getChunkType, getNativeType

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.DefaultChunkSource

getChunk, getChunk, getChunkByFilling, makeFillContext, makeGetContext

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.FillContextMaker

makeFillContext

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.GetContextMaker

makeGetContext

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.page.Page

advanceToNextPage, advanceToNextPage, advanceToNextPageAndGetPositionDistance, firstRow, firstRowOffset, getRowOffset

Methods inherited from interface com.illumon.iris.db.v2.sources.chunk.page.PagingChunkSource

mask, maxRow

Method Details

length

@FinalDefault default long length()

Specified by:

length in interface Page<ATTR extends Attributes.Any>

Returns:

the length of this page.

lastRow

@FinalDefault default long lastRow(long row)

Specified by:

lastRow in interface Page<ATTR extends Attributes.Any>

Parameters:

row - Any row contained on this page.

Returns:

the last row of this page, located in the same way as row.

fillChunkAppend

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

Description copied from interface: PagingChunkSource

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

The values to fill into destination are specified by orderedKeysIterator, whose OrderedKeys.firstKey() must exist, and must be represented by this PagingChunkSource (modulo {#link @mask}), otherwise results are undefined.

No more than the elements in orderedKeysIterator, which are on the same page as OrderedKeys.firstKey(), have their values appended to destination, and consumed from orderedKeysIterator. Keys are on the same page when the bits outside of PagingChunkSource.mask() are identical.

Specified by:

fillChunkAppend in interface PagingChunkSource<ATTR extends Attributes.Any>

Parameters:

context - A context containing all mutable/state related data used in retrieving the Chunk. In particular, the Context may be used to provide a Chunk data pool

destination - The chunk to append the results to.

orderedKeysIterator - The iterator to the ordered keys, which contain at least the keys to extract from this ChunkSource. The keys to extract will be at the beginning of iteration order.

fillChunk

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

Description copied from interface: ChunkSource

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

Specified by:

fillChunk in interface ChunkSource<ATTR extends Attributes.Any>

Parameters:

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

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

orderedKeys - An OrderedKeys representing the keys to be fetched

fillChunkAppend

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

Appends the values repeating value length times to destination.