Package io.deephaven.enterprise.sources.regioned.impl

Class ColumnRegionObjectCodecFixed<T,ATTR extends Values>

java.lang.Object

io.deephaven.enterprise.sources.regioned.impl.InvalidatableRegion<ATTR>

io.deephaven.enterprise.sources.regioned.impl.ColumnRegionObjectCodecFixed<T,ATTR>

Type Parameters:

T - The realized type of the encoded objects within this region

ATTR - The Chunk attribute for this region

All Implemented Interfaces:

Page<ATTR>, Page.WithDefaults<ATTR>, PagingChunkSource<ATTR>, ChunkSource<ATTR>, FillContextMaker, GetContextMaker, DefaultChunkSource<ATTR>, PushdownFilterMatcher, ColumnRegion<ATTR>, ColumnRegionObject<T,ATTR>, RegionedPushdownFilterMatcher, Releasable, ColumnRegionObjectWithLength<T,ATTR>

public final class ColumnRegionObjectCodecFixed<T,ATTR extends Values>
extends InvalidatableRegion<ATTR>
implements ColumnRegionObjectWithLength<T,ATTR>, Page.WithDefaults<ATTR>

A ColumnRegion for non-primitive types that have a fixed size. The objects are stored in raw encoded binary format within a single data file.

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.sources.regioned.ColumnRegion

ColumnRegion.Null<ATTR extends Any>

Nested classes/interfaces inherited from interface io.deephaven.engine.table.impl.sources.regioned.ColumnRegionObject

ColumnRegionObject.Constant<DATA_TYPE extends Object,ATTR extends Any>, ColumnRegionObject.DictionaryKeysWrapper, ColumnRegionObject.Null<DATA_TYPE extends Object,ATTR extends Any>, ColumnRegionObject.SelfDictionaryRegion<DATA_TYPE extends Object,ATTR extends Any>, ColumnRegionObject.StaticPageStore<DATA_TYPE extends Object,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>

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

Constructor Summary

Constructors

Constructor	Description
ColumnRegionObjectCodecFixed(@NotNull ObjectDecoder<T> decoder, @NotNull ColumnRegionByteWithLength<EncodedObjects> bytesRegion, @NotNull ColumnLocation columnLocation)

Method Summary

Modifier and Type	Method	Description
long	estimatePushdownAction(RegionedPushdownAction action, WhereFilter filter, RowSet selection, boolean usePrev, PushdownFilterContext filterContext, RegionedPushdownAction.EstimateContext estimateContext)
void	fillChunkAppend(ChunkSource.FillContext fillContext, @NotNull WritableChunk<? super ATTR> destination, @NotNull RowSequence orderedKeys)
boolean	gatherDictionaryValuesRowSet(RowSet.SearchIterator keysToVisit, RowSequence.Iterator knownKeys, @NotNull RowSetBuilderSequential sequentialBuilder)
Optional<ColumnLocation>	getColumnLocation()
T	getObject(long elementIndex)
T	getObject(ChunkSource.FillContext context, long elementIndex)
Optional<Long>	lengthItems()	Get the number of objects that can be read from this region, if it is known.
ChunkSource.FillContext	makeFillContext(int chunkCapacity, SharedContext sharedContext)
long	mask()
PushdownResult	performPushdownAction(RegionedPushdownAction action, WhereFilter filter, RowSet selection, PushdownResult input, boolean usePrev, PushdownFilterContext filterContext, RegionedPushdownAction.ActionContext actionContext)
void	releaseCachedResources()
List<RegionedPushdownAction>	supportedActions()

Methods inherited from class io.deephaven.enterprise.sources.regioned.impl.InvalidatableRegion

invalidate, throwIfInvalidated

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.sources.regioned.ColumnRegion

estimatePushdownFilterCost, firstRowOffset, invalidate, pushdownFilter

Methods inherited from interface io.deephaven.engine.table.impl.sources.regioned.ColumnRegionObject

getChunkType, getDictionaryKeysRegion, getDictionaryValuesRegion, supportsDictionaryFormat

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, getRowOffset

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

fillChunk, fillChunkAppend

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

maxRow

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

makePushdownFilterContext

Methods inherited from interface io.deephaven.engine.table.impl.sources.regioned.RegionedPushdownFilterMatcher

makeActionContext, makeEstimateContext

Constructor Details

ColumnRegionObjectCodecFixed

public ColumnRegionObjectCodecFixed(@NotNull
 @NotNull ObjectDecoder<T> decoder,
 @NotNull
 @NotNull ColumnRegionByteWithLength<EncodedObjects> bytesRegion,
 @NotNull
 @NotNull ColumnLocation columnLocation)

Method Details

getColumnLocation

public Optional<ColumnLocation> getColumnLocation()

Specified by:

getColumnLocation in interface ColumnRegion<T>

getObject

public T getObject(long elementIndex)

Specified by:

getObject in interface ColumnRegionObject<T,ATTR extends Values>

getObject

public T getObject(@NotNull
 ChunkSource.FillContext context,
 long elementIndex)

Specified by:

getObject in interface ColumnRegionObject<T,ATTR extends Values>

fillChunkAppend

public void fillChunkAppend(@NotNull
 ChunkSource.FillContext fillContext,
 @NotNull
 @NotNull WritableChunk<? super ATTR> destination,
 @NotNull
 @NotNull RowSequence orderedKeys)

Specified by:

fillChunkAppend in interface Page.WithDefaults<T>

releaseCachedResources

@OverridingMethodsMustInvokeSuper
public void releaseCachedResources()

Specified by:

releaseCachedResources in interface Releasable

makeFillContext

public ChunkSource.FillContext makeFillContext(int chunkCapacity,
 SharedContext sharedContext)

Specified by:

makeFillContext in interface DefaultChunkSource<T>

Specified by:

makeFillContext in interface FillContextMaker

Specified by:

makeFillContext in interface PagingChunkSource<T>

mask

public long mask()

Specified by:

mask in interface PagingChunkSource<T>

gatherDictionaryValuesRowSet

public boolean gatherDictionaryValuesRowSet(@NotNull
 RowSet.SearchIterator keysToVisit,
 @NotNull
 RowSequence.Iterator knownKeys,
 @NotNull
 @NotNull RowSetBuilderSequential sequentialBuilder)

Specified by:

gatherDictionaryValuesRowSet in interface ColumnRegionObject<T,ATTR extends Values>

lengthItems

public Optional<Long> lengthItems()

Description copied from interface: ColumnRegionObjectWithLength

Get the number of objects that can be read from this region, if it is known. Otherwise, return an empty optional.

The returned length is safe to use as a read extent: every object it covers is guaranteed to be dereferenceable. Implementations backed by more than one file must not report objects whose bytes are not yet visible, even if some other file claims they exist -- see DH-23322.

Specified by:

lengthItems in interface ColumnRegionObjectWithLength<T,ATTR extends Values>

supportedActions

public List<RegionedPushdownAction> supportedActions()

Specified by:

supportedActions in interface RegionedPushdownFilterMatcher

estimatePushdownAction

public long estimatePushdownAction(RegionedPushdownAction action,
 WhereFilter filter,
 RowSet selection,
 boolean usePrev,
 PushdownFilterContext filterContext,
 RegionedPushdownAction.EstimateContext estimateContext)

Specified by:

estimatePushdownAction in interface RegionedPushdownFilterMatcher

performPushdownAction

public PushdownResult performPushdownAction(RegionedPushdownAction action,
 WhereFilter filter,
 RowSet selection,
 PushdownResult input,
 boolean usePrev,
 PushdownFilterContext filterContext,
 RegionedPushdownAction.ActionContext actionContext)

Specified by:

performPushdownAction in interface RegionedPushdownFilterMatcher