[rules-users] threw error java.lang.ClassCastException: org.drools.reteoo.FromNode$FromMemory cannot be cast to org.drools.reteoo.BetaMemory

[Davide Sottara]

Even when you get the exception?
In other words, do you only have a single thread manipulating the
Knowledgebase
in your production environment?
I would implement Before/AfterKnowledgeBaseUnlocked and
Before/AfterKnowledgePackageAdded
to be 100% sure.
If the race condition can be excluded, I'll focus on the rebuild process
Thanks!



On 05/08/2013 01:11 PM, mohdejaz74 wrote:
> This is the order
>
> - beforeKnowledgeBaseLocked
> - afterKnowledgeBaseLocked
> - beforeRuleAdded or beforeRuleRemoved
> - afterRuleAdded or afterRuleRemoved
>
> It is same thread which does all four operations
>
>
>
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