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

Class ColumnRegionObjectWithDictionary<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.ColumnRegionObjectWithDictionary<T,ATTR>

Type Parameters:

T -

ATTR -

All Implemented Interfaces:

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

public class ColumnRegionObjectWithDictionary<T,ATTR extends Attributes.Values>
extends DeephavenColumnRegionObjectBase<T,ATTR>

A Column region for objects that is backed by a dictionary of values. Note that the dictionary keys are in the flat address space within the region [0,regionSize), not of the region itself.

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
ColumnRegionObjectWithDictionary(ColumnRegionObject<T,ATTR> valuesRegion, ColumnRegionInt<Attributes.DictionaryKeys> dictionaryKeysRegion, int expectedObjectWidth, DeephavenFormatColumnLocation location)

Method Summary

Modifier and Type	Method	Description
Index	chunkMatch(long regionFirstKey, OrderedKeys keysToFilter, boolean caseInsensitive, boolean invertMatch, Object[] keys)
void	fillChunkAppend(ChunkSource.FillContext context, WritableChunk<? super ATTR> destination, OrderedKeys orderedKeys)	Appends the values referenced by orderKeys onto destination.
ColumnRegionInt<Attributes.DictionaryKeys>	getDictionaryKeysRegionInt()	Get a view of this region as int dictionary keys.
ChunkType	getDictionaryRegionType()
ColumnRegionObject<T,ATTR>	getDictionaryValuesRegion()	Get a view of this region as dictionary values.
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.
RegionVisitResult	supportsDictionaryFormat(ReadOnlyIndex.SearchIterator keysToVisit)	Check if this region can expose an alternate form as paired regions of long keys and DATA_TYPE values covering all of its row keys in keysToVisit.

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

binSearchMatch, 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, skipCache

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

ColumnRegionObjectWithDictionary

public ColumnRegionObjectWithDictionary(@NotNull
 ColumnRegionObject<T,ATTR> valuesRegion,
 @NotNull
 ColumnRegionInt<Attributes.DictionaryKeys> dictionaryKeysRegion,
 int expectedObjectWidth,
 @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 context,
 @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

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

getDictionaryRegionType

public ChunkType getDictionaryRegionType()

getDictionaryKeysRegionInt

public ColumnRegionInt<Attributes.DictionaryKeys> getDictionaryKeysRegionInt()

Description copied from interface: ColumnRegionObject

Get a view of this region as int dictionary keys.

Returns:

A dictionary keys region as specified by ColumnRegionObject.supportsDictionaryFormat(Index.SearchIterator)

supportsDictionaryFormat

public RegionVisitResult supportsDictionaryFormat(@NotNull
 ReadOnlyIndex.SearchIterator keysToVisit)

Description copied from interface: ColumnRegionObject

Check if this region can expose an alternate form as paired regions of long keys and DATA_TYPE values covering all of its row keys in keysToVisit.

Both alternate regions must use the same or smaller row key space as this one. Indices fetched from the keys region must represent valid element indices in the values region. Values regions must support ColumnRegionObject.gatherDictionaryValuesRowSet(Index.SearchIterator, Index.Iterator, Index.SequentialBuilder).

Use ColumnRegionObject.getDictionaryKeysRegion() to access the region of keys and ColumnRegionObject.getDictionaryValuesRegion() to access the region of values.

Parameters:

keysToVisit - Iterator positioned at the first relevant row key belonging to this region. Will be advanced to after this region if true is returned. No guarantee is made if false is returned.

Returns:

A RegionVisitResult specifying FAILED if this region cannot supply a dictionary, CONTINUE if it can and keysToVisit is not exhausted, and COMPLETE if it can and keysToVisit is exhausted

getDictionaryValuesRegion

public ColumnRegionObject<T,ATTR> getDictionaryValuesRegion()

Description copied from interface: ColumnRegionObject

Get a view of this region as dictionary values.

Returns:

A dictionary values region as specified by ColumnRegionObject.supportsDictionaryFormat(Index.SearchIterator)

chunkMatch

public Index chunkMatch(long regionFirstKey,
 @NotNull
 OrderedKeys keysToFilter,
 boolean caseInsensitive,
 boolean invertMatch,
 @NotNull
 Object[] keys)

Specified by:

chunkMatch in interface ColumnRegion<T>

Overrides:

chunkMatch in class DeephavenColumnRegionObjectBase<T,ATTR extends Attributes.Values>