Package org.apache.druid.segment.index

Class SimpleImmutableBitmapIndex

java.lang.Object

org.apache.druid.segment.index.SimpleBitmapColumnIndex

org.apache.druid.segment.index.SimpleImmutableBitmapIndex

All Implemented Interfaces:

BitmapColumnIndex

public final class SimpleImmutableBitmapIndex
extends SimpleBitmapColumnIndex

SimpleBitmapColumnIndex which wraps a single ImmutableBitmap with no 'unknowns', e.g. computeBitmapResult(BitmapResultFactory, boolean) ignores the 'includeUnknown' argument.

Field Summary

Fields inherited from class org.apache.druid.segment.index.SimpleBitmapColumnIndex

CAPABILITIES

Constructor Summary

Constructors

Constructor	Description
SimpleImmutableBitmapIndex(ImmutableBitmap bitmap)

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.

Methods inherited from class org.apache.druid.segment.index.SimpleBitmapColumnIndex

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

SimpleImmutableBitmapIndex

public SimpleImmutableBitmapIndex(ImmutableBitmap bitmap)

Method Detail

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.

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