Package org.infinispan.objectfilter.impl

Class RowMatcher

java.lang.Object

org.infinispan.objectfilter.impl.BaseMatcher<org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata,org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata,Integer>

org.infinispan.objectfilter.impl.RowMatcher

All Implemented Interfaces:

Matcher

public final class RowMatcher
extends BaseMatcher<org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata,org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata,Integer>

A matcher for projection rows. This matcher is not stateless so it cannot be reused.

Since:

8.0

Author:

anistor@redhat.com

Field Summary

Fields inherited from class org.infinispan.objectfilter.impl.BaseMatcher

propertyHelper

Constructor Summary

Constructors

Constructor	Description
RowMatcher(org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata[] columns)

Method Summary

Modifier and Type	Method	Description
protected MetadataAdapter<org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata,org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata,Integer>	createMetadataAdapter(org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata rowMetadata)
protected org.infinispan.objectfilter.impl.predicateindex.RowMatcherEvalContext	startMultiTypeContext(boolean isDeltaFilter, Object userContext, Object eventType, Object instance)	Creates a new MatcherEvalContext capable of dealing with multiple filters.
protected org.infinispan.objectfilter.impl.predicateindex.RowMatcherEvalContext	startSingleTypeContext(Object userContext, Object eventType, Object instance, MetadataAdapter<org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata,org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata,Integer> metadataAdapter)	Creates a new MatcherEvalContext capable of dealing with a single filter for a single type.

Methods inherited from class org.infinispan.objectfilter.impl.BaseMatcher

convert, getFilterRegistryForType, getObjectFilter, getObjectFilter, getObjectFilter, getObjectFilter, getPropertyHelper, match, matchDelta, registerFilter, registerFilter, registerFilter, registerFilter, registerFilter, registerFilter, unregisterFilter

Methods inherited from class java.lang.Object

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

Constructor Detail

RowMatcher

public RowMatcher(org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata[] columns)

Method Detail

startMultiTypeContext

protected org.infinispan.objectfilter.impl.predicateindex.RowMatcherEvalContext startMultiTypeContext(boolean isDeltaFilter,
                                                                                                      Object userContext,
                                                                                                      Object eventType,
                                                                                                      Object instance)

Description copied from class: BaseMatcher

Creates a new MatcherEvalContext capable of dealing with multiple filters. The context is created only if the given instance is recognized to be of a type that has some filters registered. If there are no filters, null is returned to signal this condition and make the evaluation faster. This method must be called while holding the internal write lock.

Specified by:

startMultiTypeContext in class BaseMatcher<org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata,org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata,Integer>

Parameters:

isDeltaFilter - indicates if this is a delta match of not

userContext - an opaque value, possibly null, the is received from the caller and is to be handed to the FilterCallback in case a match is detected

eventType - on optional event type discriminator

instance - the instance to filter; never null

Returns:

the MatcherEvalContext or null if no filter was registered for the instance

startSingleTypeContext

protected org.infinispan.objectfilter.impl.predicateindex.RowMatcherEvalContext startSingleTypeContext(Object userContext,
                                                                                                       Object eventType,
                                                                                                       Object instance,
                                                                                                       MetadataAdapter<org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata,org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata,Integer> metadataAdapter)

Description copied from class: BaseMatcher

Creates a new MatcherEvalContext capable of dealing with a single filter for a single type. The context is created only if the given instance is recognized to be of a type that has some filters registered. If there are no filters, null is returned to signal this condition and make the evaluation faster. This method must be called while holding the internal write lock.

Specified by:

startSingleTypeContext in class BaseMatcher<org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata,org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata,Integer>

Parameters:

userContext - an opaque value, possibly null, the is received from the caller and is to be handed to the FilterCallback in case a match is detected

instance - the instance to filter; never null

metadataAdapter - the metadata adapter of expected instance type

Returns:

the MatcherEvalContext or null if no filter was registered for the instance

createMetadataAdapter

protected MetadataAdapter<org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata,org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata,Integer> createMetadataAdapter(org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata rowMetadata)

Specified by:

createMetadataAdapter in class BaseMatcher<org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.RowMetadata,org.infinispan.objectfilter.impl.syntax.parser.RowPropertyHelper.ColumnMetadata,Integer>