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

Class ParquetColumnRegionObject<T,ATTR extends Attributes.Any>

java.lang.Object

com.illumon.iris.db.v2.sources.regioned.ParquetColumnRegionBase<ATTR>

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

All Implemented Interfaces:

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

public final class ParquetColumnRegionObject<T,ATTR extends Attributes.Any>
extends ParquetColumnRegionBase<ATTR>
implements ColumnRegionObject<T,ATTR>, Page<ATTR>

ColumnRegionObject implementation for regions that support fetching objects from a ColumnChunkPageStore.

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.ColumnRegion

ColumnRegion.Null<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>, ColumnRegionObject.StaticPageStore<DATA_TYPE,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 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
ParquetColumnRegionObject(ColumnChunkPageStore<ATTR> columnChunkPageStore, Supplier<ColumnRegionInt<Attributes.DictionaryKeys>> dictionaryKeysRegionSupplier, Supplier<ColumnRegionObject<T,ATTR>> dictionaryValuesRegionSupplier)

Method Summary

Modifier and Type	Method	Description
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.
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.ParquetColumnRegionBase

fillChunk, fillChunkAppend, firstRowOffset, getChunk, getChunk, getChunkPageContaining, getNativeType, length, makeFillContext, makeGetContext, maxRow, releaseCachedResources

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

fillChunk, getChunk, getChunk, getChunkType

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

firstRowOffset, mask

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

gatherDictionaryValuesRowSet, getDictionaryKeysRegion, getNativeType, getObject, skipCache

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

makeFillContext, makeFillContext

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

makeGetContext, makeGetContext

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

advanceToNextPage, advanceToNextPage, advanceToNextPageAndGetPositionDistance, firstRow, getRowOffset, lastRow, length

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

fillChunkAppend, maxRow

Methods inherited from interface com.illumon.iris.db.v2.sources.Releasable

releaseCachedResources

Constructor Details

ParquetColumnRegionObject

public ParquetColumnRegionObject(@NotNull ColumnChunkPageStore<ATTR> columnChunkPageStore, @NotNull Supplier<ColumnRegionInt<Attributes.DictionaryKeys>> dictionaryKeysRegionSupplier, @NotNull Supplier<ColumnRegionObject<T,ATTR>> dictionaryValuesRegionSupplier)

Method Details

getObject

public T getObject(long elementIndex)

Description copied from interface: ColumnRegionObject

Get a single object from this region.

Specified by:

getObject in interface ColumnRegionObject<T,ATTR extends Attributes.Any>

Parameters:

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

Returns:

The object value at the specified element (object) index

getDictionaryRegionType

public ChunkType getDictionaryRegionType()

Specified by:

getDictionaryRegionType in interface ColumnRegionObject<T,ATTR extends Attributes.Any>

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.

Specified by:

supportsDictionaryFormat in interface ColumnRegionObject<T,ATTR extends Attributes.Any>

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

getDictionaryKeysRegionInt

public ColumnRegionInt<Attributes.DictionaryKeys> getDictionaryKeysRegionInt()

Description copied from interface: ColumnRegionObject

Get a view of this region as int dictionary keys.

Specified by:

getDictionaryKeysRegionInt in interface ColumnRegionObject<T,ATTR extends Attributes.Any>

Returns:

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

getDictionaryValuesRegion

public ColumnRegionObject<T,ATTR> getDictionaryValuesRegion()

Description copied from interface: ColumnRegionObject

Get a view of this region as dictionary values.

Specified by:

getDictionaryValuesRegion in interface ColumnRegionObject<T,ATTR extends Attributes.Any>

Returns:

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