Package org.apache.druid.segment.index

Class AllFalseBitmapColumnIndex

java.lang.Object

org.apache.druid.segment.index.AllFalseBitmapColumnIndex

All Implemented Interfaces:

BitmapColumnIndex

public class AllFalseBitmapColumnIndex
extends Object
implements BitmapColumnIndex

Constructor Summary

Constructors

Constructor	Description
AllFalseBitmapColumnIndex(BitmapFactory bitmapFactory)
AllFalseBitmapColumnIndex(BitmapFactory bitmapFactory, ImmutableBitmap unknownBitmap)

Method Summary

Modifier and Type	Method	Description
<T> T	computeBitmapResult(BitmapResultFactory<T> bitmapResultFactory, boolean includeUnknown)	Compute a bitmap result wrapped with the BitmapResultFactory representing the rows matched by this index.
ColumnIndexCapabilities	getIndexCapabilities()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.segment.index.BitmapColumnIndex

computeBitmapResult

Constructor Detail

AllFalseBitmapColumnIndex

public AllFalseBitmapColumnIndex(BitmapFactory bitmapFactory)

AllFalseBitmapColumnIndex

public AllFalseBitmapColumnIndex(BitmapFactory bitmapFactory,
                                 @Nullable
                                 ImmutableBitmap unknownBitmap)

Method Detail

getIndexCapabilities

public ColumnIndexCapabilities getIndexCapabilities()

Specified by:

getIndexCapabilities in interface BitmapColumnIndex

computeBitmapResult

public <T> T computeBitmapResult(BitmapResultFactory<T> bitmapResultFactory,
                                 boolean includeUnknown)

Description copied from interface: BitmapColumnIndex

Compute a bitmap result wrapped with the BitmapResultFactory representing the rows matched by this index. If building a cursor, use BitmapColumnIndex.computeBitmapResult(BitmapResultFactory, int, int, boolean) instead.

Specified by:

computeBitmapResult in interface BitmapColumnIndex

Parameters:

bitmapResultFactory - helper to format the ImmutableBitmap in a form ready for consumption by callers

includeUnknown - mapping for Druid native two state logic system into SQL three-state logic system. If set to true, bitmaps returned by this method should include true bits for any rows where the matching result is 'unknown', such as from the input being null valued. See NullHandling.useThreeValueLogic().

Returns:

bitmap result representing rows matched by this index