Package io.deephaven.engine.table.impl.util

Class LongColumnSourceRowRedirection<CST extends ColumnSource<Long>>

java.lang.Object

io.deephaven.engine.table.impl.util.LongColumnSourceRowRedirection<CST>

All Implemented Interfaces:

ChunkSource<RowKeys>, ChunkSource.WithPrev<RowKeys>, FillContextMaker, GetContextMaker, DefaultChunkSource<RowKeys>, DefaultChunkSource.WithPrev<RowKeys>, FillUnordered<RowKeys>, RowRedirection

Direct Known Subclasses:

LongColumnSourceWritableRowRedirection

public class LongColumnSourceRowRedirection<CST extends ColumnSource<Long>>
extends Object
implements RowRedirection

RowRedirection implementation that wraps a ColumnSource of longs.

Nested Class Summary

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

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

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

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

Field Summary

Fields

Modifier and Type	Field	Description
protected final CST	columnSource

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

DEFAULT_FILL_INSTANCE, ZERO_LENGTH_CHUNK_SOURCE_ARRAY

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

ZERO_LENGTH_CHUNK_SOURCE_WITH_PREV_ARRAY

Constructor Summary

Constructors

Constructor	Description
LongColumnSourceRowRedirection(CST columnSource)

Method Summary

Modifier and Type	Method	Description
final void	fillChunk(ChunkSource.FillContext fillContext, @NotNull WritableChunk<? super RowKeys> innerRowKeys, @NotNull RowSequence outerRowKeys)	Lookup each element in a RowSequence and write the result to a WritableLongChunk.
final void	fillPrevChunk(ChunkSource.FillContext fillContext, @NotNull WritableChunk<? super RowKeys> innerRowKeys, @NotNull RowSequence outerRowKeys)	Lookup each element in a RowSequence using previous values and write the result to a WritableLongChunk.
final long	get(long outerRowKey)	Simple redirected lookup.
final long	getPrev(long outerRowKey)	Simple redirected lookup, using previous values.
final ChunkSource.FillContext	makeFillContext(int chunkSize, SharedContext sharedContext)	Allocate a new ChunkSource.FillContext for filling chunks from this FillContextMaker, typically a ChunkSource.

Methods inherited from class java.lang.Object

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

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

getChunk, getChunk, getChunkByFilling, makeGetContext

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

getPrevChunk, getPrevChunk, getPrevChunkByFilling, getPrevSource

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.table.impl.util.RowRedirection

ascendingMapping, fillChunkUnordered, fillPrevChunkUnordered, getChunkType, isWritable, providesFillUnordered, writableCast

Field Details

columnSource

protected final CST extends ColumnSource<Long> columnSource

Constructor Details

LongColumnSourceRowRedirection

public LongColumnSourceRowRedirection(@NotNull
 CST columnSource)

Method Details

get

public final long get(long outerRowKey)

Description copied from interface: RowRedirection

Simple redirected lookup.

Specified by:

get in interface RowRedirection

Parameters:

outerRowKey - The "outer" row key

Returns:

The corresponding "inner" row key, or RowSequence.NULL_ROW_KEY if no mapping exists

getPrev

public final long getPrev(long outerRowKey)

Description copied from interface: RowRedirection

Simple redirected lookup, using previous values.

Specified by:

getPrev in interface RowRedirection

Parameters:

outerRowKey - The "outer" row key

Returns:

The corresponding "inner" row key, or RowSequence.NULL_ROW_KEY if no mapping exists

makeFillContext

public final ChunkSource.FillContext makeFillContext(int chunkSize,
 SharedContext sharedContext)

Description copied from interface: FillContextMaker

Allocate a new ChunkSource.FillContext for filling chunks from this FillContextMaker, typically a ChunkSource.

Specified by:

makeFillContext in interface DefaultChunkSource<CST extends ColumnSource<Long>>

Specified by:

makeFillContext in interface FillContextMaker

Parameters:

chunkSize - The maximum size of any WritableChunk that will be filled with this context

sharedContext - Shared store of intermediate results.

Returns:

A context for use with fill operations

fillChunk

public final void fillChunk(@NotNull
 ChunkSource.FillContext fillContext,
 @NotNull
 @NotNull WritableChunk<? super RowKeys> innerRowKeys,
 @NotNull
 @NotNull RowSequence outerRowKeys)

Description copied from interface: RowRedirection

Lookup each element in a RowSequence and write the result to a WritableLongChunk.

Specified by:

fillChunk in interface ChunkSource<CST extends ColumnSource<Long>>

Specified by:

fillChunk in interface RowRedirection

Parameters:

fillContext - The fill context

innerRowKeys - The result WritableLongChunk

outerRowKeys - The row keys to lookup in this RowRedirection

fillPrevChunk

public final void fillPrevChunk(@NotNull
 ChunkSource.FillContext fillContext,
 @NotNull
 @NotNull WritableChunk<? super RowKeys> innerRowKeys,
 @NotNull
 @NotNull RowSequence outerRowKeys)

Description copied from interface: RowRedirection

Lookup each element in a RowSequence using previous values and write the result to a WritableLongChunk.

Specified by:

fillPrevChunk in interface ChunkSource.WithPrev<CST extends ColumnSource<Long>>

Specified by:

fillPrevChunk in interface RowRedirection

Parameters:

fillContext - The fill context

innerRowKeys - The result WritableLongChunk

outerRowKeys - The row keys to lookup in this RowRedirection