[rules-users] Fusion : must declare @role(event) for all class hierarchy ?

[Vincent LEGENDRE]

Well, after trying and trying to reproduce with a simpler case, @role is always correctly inherited.
But in my application, it seems not, or may be it is another problem.

I have 3 classes : ChantierEvent (the main mother class) and its 2 subClasses : InitEvent and DisposeEvent
When I declare @role(event) for all 3 classes, everything works wells
When I only declare for the motherclass, this exception is raised (at insertion of a InitEvent) :
java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle
	at org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedRight(AfterEvaluatorDefinition.java:316)
	at org.drools.rule.VariableRestriction.isAllowedCachedRight(VariableRestriction.java:122)
	at org.drools.rule.VariableConstraint.isAllowedCachedRight(VariableConstraint.java:121)
	at org.drools.common.TripleBetaConstraints.isAllowedCachedRight(TripleBetaConstraints.java:208)
	at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:158)
	at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:458)
	at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:386)
	at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:215)
	at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:244)
	at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:330)
	at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:291)
	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:886)
	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:845)
	at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255)
             --> call of insert(new InitEvent(...));
	at com.sncf.morse.server.MVFusionThreadSession.addEvent(MVFusionThreadSession.java:158)


I first think about a problem on "after" operator, so I commented out the rule that uses it, and this error is raised then (I also use sliding windows) :
java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle
	at org.drools.rule.SlidingTimeWindow.updateNextExpiration(SlidingTimeWindow.java:211)
	at org.drools.rule.SlidingTimeWindow.assertRightTuple(SlidingTimeWindow.java:128)
	at org.drools.rule.BehaviorManager.assertRightTuple(BehaviorManager.java:84)
	at org.drools.reteoo.NotNode.assertObject(NotNode.java:114)
	at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:458)
	at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:386)
	at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:215)
	at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:244)
	at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:330)
	at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:291)
	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:886)
	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:845)
	at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255)
             --> call of insert(new InitEvent(...));
	at com.sncf.morse.server.MVFusionThreadSession.addEvent(MVFusionThreadSession.java:158)


Do you have any ideas on why this could happend ?
In what case the role could not be inherited (I tried to make my minimal sample class look like the real one, but I can't reproduce ..).

thanks