[rules-users] how to create local variable

[Manukyan, Sergey]

Thank you Edson,

 

I liked the solution with matches, it is much cleaner.... 

 

-Sergey

 

 

________________________________

From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Edson Tirelli
Sent: Thursday, July 12, 2007 4:19 PM
To: Rules Users List
Subject: Re: [rules-users] how to create local variable

 


    It is not possible to assign the result of an arbitrary method call
to a variable right now. So, your best option is probably to do (please
note the use of inline-eval):

rule "SupplierView: Headquarter Supplier Code should end on 25 or 30."

      when

            $cs : SupplierView(corporate == true, eval(
suppCode.substring(4, 6).equals( "25" ) || suppCode.substring(4,
6).equals( "30" ) ) )

      then

            ValidationErrorFacade.getInstance().registerError($cs, new
ValidationError("Headquarter Supplier Code should end on 25 or 30."));

end


    A more clean solution is to use "matches" operator. If your rule
states that Supplier Code must END with 25 or 30, you can do: 

rule "SupplierView: Headquarter Supplier Code should end on 25 or 30."

      when

            $cs : SupplierView(corporate == true, suppCode matches
".*25" || matches ".*30" )

      then

            ValidationErrorFacade.getInstance().registerError($cs, new
ValidationError("Headquarter Supplier Code should end on 25 or 30."));

end


    Hope it helps.

    []s
    Edson



2007/7/12, Manukyan, Sergey < SManukyan at lear.com>:

Folks,

 

I have a rule where I am repeating part of it twice :
($cs.getSuppCode().substring(4, 6)), and I would like to replace it with
variable... how can I do that? The solution with "in" doesn't worl
because it is a java code needed to perform calculations for
variable.....

 

Please see the rule below:

 

rule "SupplierView: Headquarter Supplier Code should end on 25 or 30."

      when

            $cs : SupplierView(corporate == true)

            eval($cs.getSuppCode().substring(4, 6) == "25" ||
$cs.getSuppCode().substring(4, 6) == "30") 

      then

            ValidationErrorFacade.getInstance().registerError($cs, new
ValidationError("Headquarter Supplier Code should end on 25 or 30."));

end

 

 

Thanks,

 

-Sergey

 

 

 

 

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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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