[rules-users] ClassCastException during inserting knowledge package

[Edson Tirelli]

   This is related to the problem in your other e-mail and it is fixed in
trunk.

   Edson

2010/4/21 Piotr Jedrychowski <pjedrychowski at proximetry.pl>

> Hello.
>
> I have a problem with such scenario:
>
> 1) add one knowledge package (sensor200) with two rules:
>
> package sensor200
> rule "Sensor-200-ON"
> when
> (and f0: FMSensorFact(id==201) f1: FMSensorFact(id==202) )
> (not FMFact(id==200))
> then
> FMFact factToInsert = new FMFact(200);
> insert(factToInsert);
> end
>
> package sensor200
> rule "Sensor-200-OFF"
> when
> not (and FMSensorFact(id==201) FMSensorFact(id==202) )
> (factToRetract : FMFact(id==200))
> then
> retract(factToRetract);
> end
>
> 2) remove knowledge package (sensor200)
>
> 3) add knowledge package with the same name as in point 1, but with
> other rule:
>
> package sensor200
> rule "Sensor-200-OR-201-ON"
> when
> fact: FMSensorFact(id==201)
> (not FMFact(id==200))
> then
> FMFact factToInsert = new FMFact(200);
> insert(factToInsert);
> end
>
> During adding knowledge package in point 3, I'm getting
> ClassCastException with this Stacktarce:
>
> java.lang.ClassCastException: org.drools.util.ObjectHashMap
>  at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:142)
>  at org.drools.reteoo.ObjectTypeNode.updateSink(ObjectTypeNode.java:252)
>  at org.drools.reteoo.AlphaNode.attach(AlphaNode.java:133)
>  at org.drools.reteoo.builder.BuildUtils.attachNode(BuildUtils.java:160)
>  at
>
> org.drools.reteoo.builder.PatternBuilder.attachAlphaNodes(PatternBuilder.java:295)
>  at
>
> org.drools.reteoo.builder.PatternBuilder.attachPattern(PatternBuilder.java:117)
>  at org.drools.reteoo.builder.PatternBuilder.build(PatternBuilder.java:70)
>  at
>
> org.drools.reteoo.builder.GroupElementBuilder$NotBuilder.build(GroupElementBuilder.java:228)
>  at
>
> org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:73)
>  at
>
> org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build(GroupElementBuilder.java:126)
>  at
>
> org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:73)
>  at
>
> org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:153)
>  at
>
> org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:126)
>  at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:117)
>  at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:362)
>  at org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:618)
>  at
> org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:500)
>  at org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:379)
>  at
>
> org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:121)
>
> Maybe someone had similar problem and could help me?
>
> I'm using:
> * JBoss 4.2.3.GA
> * Drools 5.0
>
> Regards,
> Piotr
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>



-- 
 Edson Tirelli
 JBoss Drools Core Development
 JBoss by Red Hat @ www.jboss.com
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