org.eclipse.incquery.runtime.evm.api

Class RuleBase

java.lang.Object

org.eclipse.incquery.runtime.evm.api.RuleBase

public class RuleBase
extends java.lang.Object

An RuleBase is associated to an EventRealm and it is responsible for creating, managing and disposing rules in the Rule Engine. It provides an unmodifiable view for the collection of applicable activations.

Author:

Tamas Szabo

Method Summary

Modifier and Type	Method and Description
ScopedConflictSet	createScopedConflictSet(ConflictResolver conflictResolver, com.google.common.collect.Multimap<RuleSpecification<?>,EventFilter<?>> specifications) Creates a scoped conflict set of the enabled activations of the provided rule specifications and filters using the given conflict resolver.
Agenda	getAgenda()
EventRealm	getEventRealm()
<EventAtom> RuleInstance<EventAtom>	getInstance(RuleSpecification<EventAtom> specification, EventFilter<? super EventAtom> filter) Returns the filtered instance managed by the RuleBase for the given specification.
org.apache.log4j.Logger	getLogger()
java.util.Set<RuleInstance<?>>	getRuleInstances()
com.google.common.collect.Multimap<RuleSpecification<?>,EventFilter<?>>	getRuleSpecificationMultimap()

Methods inherited from class java.lang.Object

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

Method Detail

getEventRealm

public EventRealm getEventRealm()

Returns:

the eventRealm

getRuleSpecificationMultimap

public com.google.common.collect.Multimap<RuleSpecification<?>,EventFilter<?>> getRuleSpecificationMultimap()

getRuleInstances

public java.util.Set<RuleInstance<?>> getRuleInstances()

Returns:

an immutable copy of the set of rule instances

getInstance

public <EventAtom> RuleInstance<EventAtom> getInstance(RuleSpecification<EventAtom> specification,
                                                       EventFilter<? super EventAtom> filter)

Returns the filtered instance managed by the RuleBase for the given specification.

Parameters:

specification -

filter - the partial match to be used as filter

Returns:

the instance, if it exists, null otherwise

createScopedConflictSet

public ScopedConflictSet createScopedConflictSet(ConflictResolver conflictResolver,
                                                 com.google.common.collect.Multimap<RuleSpecification<?>,EventFilter<?>> specifications)

Creates a scoped conflict set of the enabled activations of the provided rule specifications and filters using the given conflict resolver. The set will be incrementally updated until disposed.

Parameters:

conflictResolver -

specifications -

getAgenda

public Agenda getAgenda()

Returns:

the agenda

getLogger

public org.apache.log4j.Logger getLogger()

Returns:

the logger