<div><br></div> Looks like a bug. :( The code to inherit @role event is there, but apparently there is something else going on:<div><br></div><div><a href="https://github.com/droolsjbpm/drools/blob/master/drools-core/src/main/java/org/drools/rule/Package.java#L485">https://github.com/droolsjbpm/drools/blob/master/drools-core/src/main/java/org/drools/rule/Package.java#L485</a></div>
<div><br></div><div> Please open a JIRA with the information bellow.</div><div><br></div><div> Edson<br><br><div class="gmail_quote">On Fri, Jul 27, 2012 at 3:01 AM, Joerg Henne <span dir="ltr"><<a href="mailto:hennejg+nabble@googlemail.com" target="_blank">hennejg+nabble@googlemail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Thanks for your help, Edson!<br>
<br>
We are using drools 5.4.0.Final via maven.<br>
<br>
Maybe I am missing something, so here's a quick overview of what we do. We<br>
have a model class ButtonEvent which is derived like this:<br>
ButtonEvent -> ZonedEvent -> VSCPEvent<br>
<br>
Then there's a rulebase with something like this:<br>
<br>
import test.vscp.VSCPEvent;<br>
import test.vscp.information.ButtonEvent;<br>
<br>
declare VSCPEvent<br>
@role( event )<br>
@timestamp( timestamp )<br>
@expires( 1h )<br>
end<br>
declare ButtonEvent<br>
@role( event )<br>
@timestamp( timestamp )<br>
@expires( 1h )<br>
end<br>
<br>
rule "Button long pressed"<br>
when<br>
b : ButtonEvent( action == Action.PRESSED )<br>
not( ButtonEvent( action == Action.RELEASED, this after[0s,1s] b ) )<br>
then<br>
...<br>
end<br>
<br>
What I would have expected is that the second 'declare' statement to be<br>
unnecessary. However, if I take it away, this is what I get:<br>
<br>
java.lang.ClassCastException: org.drools.common.DefaultFactHandle<br>
at<br>
org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedRight(AfterEvaluatorDefinition.java:316)<br>
at<br>
org.drools.rule.constraint.EvaluatorConstraint.isAllowedCachedRight(EvaluatorConstraint.java:80)<br>
at<br>
org.drools.common.SingleBetaConstraints.isAllowedCachedRight(SingleBetaConstraints.java:139)<br>
at org.drools.reteoo.NotNode.assertObject(NotNode.java:133)<br>
at<br>
org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59)<br>
at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:141)<br>
at<br>
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)<br>
at<br>
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)<br>
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)<br>
at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)<br>
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:337)<br>
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:298)<br>
at<br>
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:888)<br>
at<br>
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:847)<br>
at<br>
org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:269)<br>
...<br>
<br>
Thanks<br>
Joerg<br>
<br>
<br>
<br>
<br>
<br>
--<br>
View this message in context: <a href="http://drools.46999.n3.nabble.com/Apply-role-to-whole-class-hierarchy-tp4018930p4018942.html" target="_blank">http://drools.46999.n3.nabble.com/Apply-role-to-whole-class-hierarchy-tp4018930p4018942.html</a><br>
<div class="HOEnZb"><div class="h5">Sent from the Drools: User forum mailing list archive at Nabble.com.<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br> Edson Tirelli<br> JBoss Drools Core Development<br> JBoss by Red Hat @ <a href="http://www.jboss.com">www.jboss.com</a><br>
</div>