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

Class RegionedPageStore.Static<ATTR extends Attributes.Any,INNER_ATTR extends ATTR,REGION_TYPE extends Page<INNER_ATTR>>

java.lang.Object

com.illumon.iris.db.v2.sources.regioned.RegionedPageStore.Static<ATTR,INNER_ATTR,REGION_TYPE>

All Implemented Interfaces:

LongSizedDataStructure, ChunkSource<ATTR>, DefaultChunkSource<ATTR>, DefaultChunkSource.SupportsContiguousGet<ATTR>, FillContextMaker, GetContextMaker, PageStore<ATTR,INNER_ATTR,REGION_TYPE>, PagingChunkSource<ATTR>, RegionedPageStore<ATTR,INNER_ATTR,REGION_TYPE>

Direct Known Subclasses:

ColumnRegionByte.StaticPageStore, ColumnRegionChar.StaticPageStore, ColumnRegionDouble.StaticPageStore, ColumnRegionFloat.StaticPageStore, ColumnRegionInt.StaticPageStore, ColumnRegionLong.StaticPageStore, ColumnRegionObject.StaticPageStore, ColumnRegionShort.StaticPageStore

Enclosing interface:

RegionedPageStore<ATTR extends Attributes.Any,INNER_ATTR extends ATTR,REGION_TYPE extends Page<INNER_ATTR>>

public abstract static class RegionedPageStore.Static<ATTR extends Attributes.Any,INNER_ATTR extends ATTR,REGION_TYPE extends Page<INNER_ATTR>>
extends Object
implements RegionedPageStore<ATTR,INNER_ATTR,REGION_TYPE>

A regioned page store for use when the full set of regions and their sizes are known.

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.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.regioned.RegionedPageStore

RegionedPageStore.Helper, RegionedPageStore.Static<ATTR extends Attributes.Any,INNER_ATTR extends ATTR,REGION_TYPE extends Page<INNER_ATTR>>

Field Summary

Fields

Modifier and Type	Field	Description
protected REGION_TYPE[]	regions

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.RegionedPageStore

REGION_MASK, REGION_MASK_NUM_BITS

Constructor Summary

Constructors

Constructor	Description
Static(REGION_TYPE[] regions)

Method Summary

Modifier and Type	Method	Description
protected int	findRegionIndex(long elementIndex)
REGION_TYPE	getRegion(int regionIndex)	Map from a region index to its corresponding region.
int	getRegionCount()	Get the number of regions.
long	length()
REGION_TYPE	lookupRegion(long elementIndex)	Perform region lookup for an element index.
long	mask()	This mask is applied to OrderedKeys which are passed into ChunkSource.getChunk(ChunkSource.GetContext, OrderedKeys) and ChunkSource.fillChunk(ChunkSource.FillContext, WritableChunk, OrderedKeys).

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, getNativeType

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

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.util.LongSizedDataStructure

intSize, intSize

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

doFillChunkAppend, fillChunk, fillChunkAppend, getChunk, getChunk

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

maxRow

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

getPageContaining, makeFillContext, size

Field Details

regions

protected final REGION_TYPE extends Page<INNER_ATTR>[] regions

Constructor Details

Static

public Static(@NotNull REGION_TYPE[] regions)

Parameters:

regions - Array of all regions in this page store. Array becomes property of the page store.

Method Details

length

public long length()

lookupRegion

public REGION_TYPE lookupRegion(long elementIndex)

Description copied from interface: RegionedPageStore

Perform region lookup for an element index.

Specified by:

lookupRegion in interface RegionedPageStore<ATTR extends Attributes.Any,INNER_ATTR extends ATTR,REGION_TYPE extends Page<INNER_ATTR>>

Parameters:

elementIndex - The element index to get the region for

Returns:

The appropriate region

mask

public long mask()

Description copied from interface: PagingChunkSource

This mask is applied to OrderedKeys which are passed into ChunkSource.getChunk(ChunkSource.GetContext, OrderedKeys) and ChunkSource.fillChunk(ChunkSource.FillContext, WritableChunk, OrderedKeys). This allows the PagingChunkSources to be cached, and reused even if they are properly relocated in key space.

Specified by:

mask in interface PagingChunkSource<ATTR extends Attributes.Any>

Specified by:

mask in interface RegionedPageStore<ATTR extends Attributes.Any,INNER_ATTR extends ATTR,REGION_TYPE extends Page<INNER_ATTR>>

Returns:

the mask for this page, which must be a bitmask representing the some number of lower order bits of a long.

getRegionCount

public final int getRegionCount()

Description copied from interface: RegionedPageStore

Get the number of regions.

Specified by:

getRegionCount in interface RegionedPageStore<ATTR extends Attributes.Any,INNER_ATTR extends ATTR,REGION_TYPE extends Page<INNER_ATTR>>

Returns:

The number of regions that have been added

getRegion

public final REGION_TYPE getRegion(int regionIndex)

Description copied from interface: RegionedPageStore

Map from a region index to its corresponding region.

Specified by:

getRegion in interface RegionedPageStore<ATTR extends Attributes.Any,INNER_ATTR extends ATTR,REGION_TYPE extends Page<INNER_ATTR>>

Parameters:

regionIndex - The region index

Returns:

The region for the supplied region index

findRegionIndex

protected int findRegionIndex(long elementIndex)