[jboss-jira] [JBoss JIRA] Commented: (JBRULES-1262) DSL Parser "eval"

[Edson Tirelli (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBRULES-1262?page=comments#action_12399224 ] 
            
Edson Tirelli commented on JBRULES-1262:
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The problem is that DSL is working right as a pure text template engine and when looking for the pattern, it indeed will get the innermost () pair and the is wrong. I don't think we can fix that (unfortunately) based only on text templates. We need context information.

My suggestion is that you apply your fix to your local build as this will help you get around the problem. 

The general fix though needs to understand exactly where in the text template is the pattern and how to correctly add a constraint to it. Wanna try to fix the more general case?

Thanks

> DSL Parser "eval"
> -----------------
>
>                 Key: JBRULES-1262
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-1262
>             Project: JBoss Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Drl Parser/Builder
>    Affects Versions: 4.0.1
>            Reporter: M H
>         Assigned To: Edson Tirelli
>            Priority: Blocker
>             Fix For: 4.0.5
>
>
> [when]of type Item=Item()
> [when]- Title equals "{value}"=eval(title.isEqual("{value}")
> [when]- Event equals "{value}"=eval(id.isEqual("{value}")
> [then]Log : "{message}"=System.out.println("{message}");
> the dslr File:
> expander Test.dsl
> rule "Your First Rule"
>      when
>             $p : of type Item
>                - Title equals "test"
>                - Event equals "test"
>      then
>            #actions
> end
> resolves to (could be seen in the drl viewer)
> rule "Your First Rule"
>        when
>                $p :Item( eval(title.isEqual("test", eval(id.isEqual("test") ) )
>        then
>                #actions
> end

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