Package com.illumon.iris.db.v2.sources.regioned

Class ColumnRegionObjectCodecFixed<T,ATTR extends Attributes.Values>

java.lang.Object

com.illumon.iris.db.v2.sources.regioned.DeephavenColumnRegionObjectBase<T,ATTR>

com.illumon.iris.db.v2.sources.regioned.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:

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

public final class ColumnRegionObjectCodecFixed<T,ATTR extends Attributes.Values>
extends DeephavenColumnRegionObjectBase<T,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 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.regioned.ColumnRegionObject

ColumnRegionObject.DictionaryKeysWrapper, ColumnRegionObject.IntDictionaryKeysWrapper, ColumnRegionObject.Null<T,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 class com.illumon.iris.db.v2.sources.regioned.DeephavenColumnRegionObjectBase

location, nativeType

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

DEFAULT_FILL_INSTANCE, ZERO_LENGTH_CHUNK_SOURCE_ARRAY

Fields inherited from interface com.illumon.iris.db.v2.sources.regioned.ColumnRegion

REGION_MASK

Constructor Summary

Constructors

Constructor	Description
ColumnRegionObjectCodecFixed(Class<T> nativeType, io.deephaven.util.codec.ObjectDecoder<T> decoder, ColumnRegionByte<Attributes.EncodedObjects> bytesRegion, DeephavenFormatColumnLocation location)

Method Summary

Modifier and Type	Method	Description
void	fillChunkAppend(ChunkSource.FillContext fillContext, WritableChunk<? super ATTR> destination, OrderedKeys orderedKeys)	Appends the values referenced by orderKeys onto destination.
T	getObject(long elementIndex)	Get a single object from this region.
T	getObject(ChunkSource.FillContext context, long elementIndex)	Get a single object from this region.
long	length()
ChunkSource.FillContext	makeFillContext(int chunkCapacity, SharedContext sharedContext)	Allocate a new ChunkSource.FillContext for filling chunks from this FillContextMaker, typically a ChunkSource.
void	releaseCachedResources()	Release any resources held for caching purposes.

Methods inherited from class com.illumon.iris.db.v2.sources.regioned.DeephavenColumnRegionObjectBase

binSearchMatch, chunkMatch, couldInclude, getLocation, getNativeType

Methods inherited from class java.lang.Object

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

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

getChunkType

Methods inherited from interface com.illumon.iris.db.v2.sources.regioned.ColumnRegion

firstRowOffset, mask, specialMatch, supportsSpecialMatching

Methods inherited from interface com.illumon.iris.db.v2.sources.regioned.ColumnRegionObject

gatherDictionaryValuesRowSet, getDictionaryKeysRegion, getDictionaryKeysRegionInt, getDictionaryRegionType, getDictionaryValuesRegion, skipCache, supportsDictionaryFormat

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

getChunk, getChunk, getChunkByFilling, 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, getRowOffset, lastRow

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

fillChunk, fillChunkAppend

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

maxRow

Constructor Details

ColumnRegionObjectCodecFixed

public ColumnRegionObjectCodecFixed(@NotNull
 Class<T> nativeType,
 @NotNull
 io.deephaven.util.codec.ObjectDecoder<T> decoder,
 @NotNull
 ColumnRegionByte<Attributes.EncodedObjects> bytesRegion,
 @NotNull
 DeephavenFormatColumnLocation location)

Method Details

getObject

public T getObject(long elementIndex)

Description copied from interface: ColumnRegionObject

Get a single object from this region.

Parameters:

elementIndex - Element (object) index in the table's address space

Returns:

The object value at the specified element (object) index

getObject

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

Description copied from interface: ColumnRegionObject

Get a single object from this region.

Parameters:

context - A ColumnRegionFillContext to enable resource caching where suitable, with current region index pointing to this region

elementIndex - Element (object) index in the table's address space

Returns:

The object value at the specified element (object) index

fillChunkAppend

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

Description copied from interface: Page.WithDefaults

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

length

public long length()

Returns:

the length of this page.

releaseCachedResources

@OverridingMethodsMustInvokeSuper
public void releaseCachedResources()

Description copied from interface: Releasable

Release any resources held for caching purposes. Implementations need not guarantee that they are safe for normal use concurrently with invocations of this method.

makeFillContext

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

Description copied from interface: FillContextMaker

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

Parameters:

chunkCapacity - 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