Package io.deephaven.engine.page

Class ObjectChunkPage<T,ATTR extends Any>

java.lang.Object

io.deephaven.chunk.ChunkBase<ATTR>

io.deephaven.chunk.ObjectChunk<T,ATTR>

io.deephaven.engine.page.ObjectChunkPage<T,ATTR>

All Implemented Interfaces:

Chunk<ATTR>, ChunkPage<ATTR>, Page<ATTR>, Page.WithDefaults<ATTR>, PagingChunkSource<ATTR>, ChunkSource<ATTR>, FillContextMaker, GetContextMaker, DefaultChunkSource<ATTR>, DefaultChunkSource.SupportsContiguousGet<ATTR>

public class ObjectChunkPage<T,ATTR extends Any>
extends ObjectChunk<T,ATTR>
implements ChunkPage<ATTR>

Nested Class Summary

Nested classes/interfaces inherited from interface io.deephaven.chunk.Chunk

Chunk.Visitor<ATTR extends Any>

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.chunk.Chunk

MAXIMUM_SIZE, SYSTEM_ARRAYCOPY_THRESHOLD, SYSTEM_ARRAYFILL_THRESHOLD

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

DEFAULT_FILL_INSTANCE, ZERO_LENGTH_CHUNK_SOURCE_ARRAY

Method Summary

Modifier and Type	Method	Description
final void	fillChunkAppend(@NotNull ChunkSource.FillContext context, @NotNull WritableChunk<? super ATTR> destination, @NotNull RowSequence rowSequence)	Appends the values referenced by orderKeys onto destination.
final long	firstRowOffset()
final long	mask()	This mask is applied to RowSequences which are passed into DefaultChunkSource.getChunk(io.deephaven.engine.table.ChunkSource.GetContext, io.deephaven.engine.rowset.RowSequence), ChunkSource.fillChunk(io.deephaven.engine.table.ChunkSource.FillContext, io.deephaven.chunk.WritableChunk<? super ATTR>, io.deephaven.engine.rowset.RowSequence), and PagingChunkSource.fillChunkAppend(FillContext, WritableChunk, RowSequence.Iterator) .
static <T, ATTR extends Any> ObjectChunkPage<T,ATTR>	pageWrap(long firstRow, @NotNull T[] data, int offset, int capacity, long mask)
static <T, ATTR extends Any> ObjectChunkPage<T,ATTR>	pageWrap(long firstRow, @NotNull T[] data, long mask)

Methods inherited from class io.deephaven.chunk.ObjectChunk

asTypedObjectChunk, binarySearch, binarySearch, chunkWrap, chunkWrap, copyToArray, copyToChunk, copyToTypedArray, downcast, get, getChunkType, getEmptyChunk, isAlias, isAlias, makeArray, slice, walk

Methods inherited from class io.deephaven.chunk.ChunkBase

internalCapacity, internalSetSize, size

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.deephaven.chunk.Chunk

asBooleanChunk, asByteChunk, asCharChunk, asDoubleChunk, asFloatChunk, asIntChunk, asLongChunk, asObjectChunk, asShortChunk, checkChunkType, copyToArray, copyToBuffer, copyToChunk, isAlias, isAlias, size, slice, walk

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

getChunk, getChunkOffset, getChunkType, lastRow, maxRow

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

getChunkByFilling, makeGetContext

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

getChunk

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, getRowOffset

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

fillChunk, fillChunkAppend

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

makeFillContext

Method Details

pageWrap

public static <T,
ATTR extends Any>
ObjectChunkPage<T,ATTR> pageWrap(long firstRow,
 @NotNull
 @NotNull T[] data,
 int offset,
 int capacity,
 long mask)

pageWrap

public static <T,
ATTR extends Any>
ObjectChunkPage<T,ATTR> pageWrap(long firstRow,
 @NotNull
 @NotNull T[] data,
 long mask)

fillChunkAppend

public final void fillChunkAppend(@NotNull
 @NotNull ChunkSource.FillContext context,
 @NotNull
 @NotNull WritableChunk<? super ATTR> destination,
 @NotNull
 @NotNull RowSequence rowSequence)

Description copied from interface: Page.WithDefaults

Appends the values referenced by orderKeys onto destination. orderKeys are assumed to be entirely contained on this Page.

Specified by:

fillChunkAppend in interface Page.WithDefaults<T>

firstRowOffset

public final long firstRowOffset()

Specified by:

firstRowOffset in interface Page<T>

Returns:

the first row of this page, after applying the PagingChunkSource.mask(), which refers to the first row of this page.

mask

public final long mask()

Description copied from interface: PagingChunkSource

This mask is applied to RowSequences which are passed into DefaultChunkSource.getChunk(io.deephaven.engine.table.ChunkSource.GetContext, io.deephaven.engine.rowset.RowSequence), ChunkSource.fillChunk(io.deephaven.engine.table.ChunkSource.FillContext, io.deephaven.chunk.WritableChunk<? super ATTR>, io.deephaven.engine.rowset.RowSequence), and PagingChunkSource.fillChunkAppend(FillContext, WritableChunk, RowSequence.Iterator) . This allows PagingChunkSources to be cached and reused even if they are properly relocated in key space.

Specified by:

mask in interface PagingChunkSource<T>

Returns:

The mask for this PagingChunkSource, which must be a bitmask representing some number of lower order bits of a long.