Package org.apache.druid.query.filter.vector

Class BooleanVectorValueMatcher

java.lang.Object

org.apache.druid.query.filter.vector.BaseVectorValueMatcher

org.apache.druid.query.filter.vector.BooleanVectorValueMatcher

All Implemented Interfaces:

VectorValueMatcher, VectorSizeInspector

public final class BooleanVectorValueMatcher
extends BaseVectorValueMatcher

Method Summary

Modifier and Type	Method	Description
ReadableVectorMatch	match(ReadableVectorMatch mask, boolean includeUnknown)	Examine the current vector and return a match indicating what is accepted.
static BooleanVectorValueMatcher	of(VectorSizeInspector selector, ConstantMatcherType matcherType)

Methods inherited from class org.apache.druid.query.filter.vector.BaseVectorValueMatcher

getCurrentVectorSize, getMaxVectorSize

Methods inherited from class java.lang.Object

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

Method Detail

of

public static BooleanVectorValueMatcher of(VectorSizeInspector selector,
                                           ConstantMatcherType matcherType)

match

public ReadableVectorMatch match(ReadableVectorMatch mask,
                                 boolean includeUnknown)

Description copied from interface: VectorValueMatcher

Examine the current vector and return a match indicating what is accepted.

Does not modify "mask".

Parameters:

mask - must not be null; use VectorMatch.allTrue(int) if you don't need a mask.

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

Returns:

the subset of "mask" that this value matcher accepts. May be the same instance as {@param mask} if every row in the mask matches the filter.