[rules-dev] How to compare to Class type in LHS??

[Edson Tirelli]

   Felipe,

   The NPE is a bug that was fixed already.
   I can't think in another way of doing without using a return value
restriction as you are doing...

   []s
   Edson

2007/7/24, Felipe Piccolini <felipe.piccolini at bluesoft.cl>:
>
> Hi,
>    Im trying to compare a field to a Class type but when parsing I get NPE
> and when I debug,
> the constraint is a ReturnValueConstraint but the restriction
> .getRequiredDeclarations()
> return a Declaration[] array initializated, but empty, so I can't get the
> declaration evaluated...
> I needed because I'm working on a kind of parser for the rules for
> analisys and testing... but using
> the already parsed package.
>
> Here is a pseudo rule for test...
>
> rule "Test A"
> when
>  $mf: MyFact(clazz == (SomeClass.class))
> then
>  System.out.println("Test A: OK");
> end
>
> Actualy, the rule compiles (with the NPE output, not stackTrace, just the
> java.lang.NullPointerException,
> and it works fine.. I mean I get "Test A: OK" as output, but cant get the
> SomeClass.class reference when I
> look into the debugger.
>
> Is this the right way to compare clases? if not, whats the right way? (Im
> trying to not do == "SomeClass")
>                                                                         *Felipe
> Piccolini M.*
> felipe.piccolini at bluesoft.cl
>
>
>
>
>
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>


-- 
  Edson Tirelli
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com
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