AW: [rules-users] ClassCastException caused by generated java code?!

[Krister Saleck]

Thanks, works fine for me.
I will try to separate some code and open a JIRA.

Krister


-----Ursprüngliche Nachricht-----
Von: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] Im Auftrag von Edson
Tirelli
Gesendet: Donnerstag, 28. Juni 2007 19:58
An: Rules Users List
Betreff: Re: [rules-users] ClassCastException caused by generated java
code?!



   Krister,

   Well, the best way to write the rule is indeed without that "or",
since it will generate unneeded subrules. To achieve best performance
and results would be better to do (using new features from MR3): 

rule "Buyer neutral"
when
                $c : CallContext(cause == "checkout", state == "new")
                Order( buyer.prospect == true )
                Quality( value in ( 1, 2 ) ) 
then
                $c.setState("neutral");
end

    But what you reported is a problem anyway, so, if you can open a
JIRA and attach a test case, I really appreciate. I will look at it and
fix as soon as possible. 

    []s
    Edson


2007/6/28, Krister Saleck <krister.saleck at mytoys.de>:

Hi,

thanks for the new features in 4.0MR3 - now i may get rid
of some of my workarounds :-)

Unfortunately one problem still pops up in MR3:

Some generated code causes a ClassCastException while casting to 
a implementation class. Because JBossRules wraps Facts by a generated
class implementing the facts interface, there should only be some
casting to the interface class?!

---
caused by: java.lang.ClassCastException : de.myToys.CallContextImpl
        at
de.myToys.konsum.core.account.rules.Rule_Buyer_neutral_0Eval0Invoker.eva
luate(
                Rule_Buyer_neutral_0Eval0Invoker.java:12)
        at
org.drools.rule.EvalCondition.isAllowed (EvalCondition.java:71)
---
rule "Buyer neutral"
        when
                $c : CallContext(cause == "checkout", state == "new")
                $order : Order()
                (Quality(value == 1) or Quality(value == 2)) 
                eval($order.getBuyer().isProspect())
        then
                $c.setState("neutral");
end
---

If I execute the rule without the "or" term i do not run into
that problem.... bad rule style?

Did anyone have a hint?

Thanks in advance,
Krister

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-- 
  Edson Tirelli 
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
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