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

Class ColumnRegion.Null<ATTR extends Attributes.Any>

java.lang.Object

com.illumon.iris.db.v2.sources.regioned.ColumnRegion.Null<ATTR>

Type Parameters:

ATTR -

All Implemented Interfaces:

ChunkSource<ATTR>, DefaultChunkSource<ATTR>, FillContextMaker, GetContextMaker, Page<ATTR>, Page.WithDefaultsForRepeatingValues<ATTR>, PagingChunkSource<ATTR>, ColumnRegion<ATTR>, Releasable

Direct Known Subclasses:

ColumnRegionByte.Null, ColumnRegionChar.Null, ColumnRegionDouble.Null, ColumnRegionFloat.Null, ColumnRegionInt.Null, ColumnRegionLong.Null, ColumnRegionObject.Null, ColumnRegionReferencing.Null, ColumnRegionShort.Null

Enclosing interface:

ColumnRegion<ATTR extends Attributes.Any>

public abstract static class ColumnRegion.Null<ATTR extends Attributes.Any>
extends Object
implements ColumnRegion<ATTR>, Page.WithDefaultsForRepeatingValues<ATTR>

The null region. Extensions of this class should return or fill chunks with the type appropriate null value.

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.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 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

Method Summary

Modifier and Type	Method	Description
final Index	binSearchMatch(long firstKey, long lastKey, SortPair sortPair, Object[] keys)	Given that this column is sorted, match the input keys using a binary search.
Index	chunkMatch(long regionFirstKey, OrderedKeys keysToFilter, boolean caseInsensitive, boolean invertMatch, Object[] keys)
final boolean	couldInclude(Object[] sortedKeys)	Check if the region could possibly include any of the keys we're searching for
protected abstract Index	doSpecialMatch(OrderedKeys keysToFilter, boolean invertMatch, Object[] keys)
void	fillChunkAppend(ChunkSource.FillContext context, WritableChunk<? super ATTR> destination, int length)	Appends the values repeating value length times to destination.
final ColumnLocation	getLocation()
final Index	specialMatch(OrderedKeys keysToFilter, long regionFirstKey, boolean caseInsensitive, boolean invertMatch, Object[] keys)	If ColumnRegion.supportsSpecialMatching() is true this method will perform matching in lieu of the standard RegionedColumnSourceBase.match(boolean, boolean, boolean, ReadOnlyIndex, Object...).
final boolean	supportsSpecialMatching()	Check if this region has special matching features.

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.regioned.ColumnRegion

firstRowOffset, mask

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

getChunk, getChunk, getChunkByFilling, makeFillContext, 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

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

fillChunk, fillChunkAppend, lastRow, length

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

maxRow

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

releaseCachedResources

Method Details

fillChunkAppend

public void fillChunkAppend(@NotNull
 ChunkSource.FillContext context,
 @NotNull
 WritableChunk<? super ATTR> destination,
 int length)

Description copied from interface: Page.WithDefaultsForRepeatingValues

Appends the values repeating value length times to destination.

Specified by:

fillChunkAppend in interface Page.WithDefaultsForRepeatingValues<ATTR extends Attributes.Any>

getLocation

public final ColumnLocation getLocation()

Specified by:

getLocation in interface ColumnRegion<ATTR extends Attributes.Any>

supportsSpecialMatching

public final boolean supportsSpecialMatching()

Description copied from interface: ColumnRegion

Check if this region has special matching features.

Specified by:

supportsSpecialMatching in interface ColumnRegion<ATTR extends Attributes.Any>

Returns:

true if this has special matching features

specialMatch

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

Description copied from interface: ColumnRegion

If ColumnRegion.supportsSpecialMatching() is true this method will perform matching in lieu of the standard RegionedColumnSourceBase.match(boolean, boolean, boolean, ReadOnlyIndex, Object...).

Specified by:

specialMatch in interface ColumnRegion<ATTR extends Attributes.Any>

Parameters:

keysToFilter - the keys being filtered

regionFirstKey - the first key within this region

caseInsensitive - if the match is case insensitive

invertMatch - if the match should be inverted

keys - the keys to search for, in no particular order

Returns:

an index of matched rows

doSpecialMatch

protected abstract Index doSpecialMatch(@NotNull
 OrderedKeys keysToFilter,
 boolean invertMatch,
 @NotNull
 Object[] keys)

couldInclude

public final boolean couldInclude(@NotNull
 Object[] sortedKeys)

Description copied from interface: ColumnRegion

Check if the region could possibly include any of the keys we're searching for

Specified by:

couldInclude in interface ColumnRegion<ATTR extends Attributes.Any>

Parameters:

sortedKeys - the keys to search for

Returns:

true if the region possibly contains the values

binSearchMatch

public final Index binSearchMatch(long firstKey,
 long lastKey,
 @NotNull
 SortPair sortPair,
 @NotNull
 Object[] keys)

Description copied from interface: ColumnRegion

Given that this column is sorted, match the input keys using a binary search.

Specified by:

binSearchMatch in interface ColumnRegion<ATTR extends Attributes.Any>

Parameters:

firstKey - The first key to search

lastKey - The last key to search

sortPair - the sorting definition

keys - the keys to search for, in no particular order

chunkMatch

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

Specified by:

chunkMatch in interface ColumnRegion<ATTR extends Attributes.Any>