[jboss-jira] [JBoss JIRA] Closed: (JBRULES-556) Support additional predicate syntaxes

[Edson Tirelli (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-556?page=all ]

Edson Tirelli closed JBRULES-556.
---------------------------------

    Fix Version/s: 3.1-m1
                       (was: 3.1-m2)
       Resolution: Done


  I changed predicate working throughout the whole compiler and core of the engine.
  Now, predicates don't have an attached variable binding anymore (it means I REMOVED some attributes from the predicate classes). It means the following is now valid:

Cheese( $type : type, ( <predicate code> ) )

  The old syntax is supported for backward compatibility, but it is just syntax sugar at the parser level:

Cheese( $type: type -> ( <predicate code> ) )

  The above will generate the exactly same descriptors as the previous example, i.e., a field binding descriptor + a predicate descriptor.
  Just to make the difference clear, in 3.0, the above syntax would generate only a predicate descriptor with an attached declaration, but would NOT generate the field binding descriptor.

  As a consequence, we now can do:

MyClass( $a : a, $b : b, ( $a.myMethod( $b ) ) ) 


> Support additional predicate syntaxes
> -------------------------------------
>
>                 Key: JBRULES-556
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-556
>             Project: JBoss Rules
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: Reteoo, Manual, Drl Parser/Builder
>    Affects Versions: 3.1-m1
>            Reporter: Edson Tirelli
>         Assigned To: Edson Tirelli
>             Fix For: 3.1-m1
>
>
> Implement support to additional predicate syntax, making "->" not mandatory anymore.
> Pattern( $var1 : attr1, $var2 : attr2, ( $var1.blabla() != $var2.xyz() ) )

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