[rules-users] return value restriction: not all expressions supported?

[Edson Tirelli]

   Please open the usual JIRA. Need to check why as I can't see any
reason for that.

   Thanks,
     Edson

2010/12/16 Wolfgang Laun <wolfgang.laun at gmail.com>:
> Java.
> -W
>
> On 16 December 2010 16:43, Edson Tirelli <ed.tirelli at gmail.com> wrote:
>>
>>   MVEL or Java?
>>
>>   Edson
>>
>> 2010/12/16 Wolfgang Laun <wolfgang.laun at gmail.com>:
>> > Using 5.1.1 and knowing that "a Return Value restriction is a
>> > parenthesized
>> > expression composed from literals, any valid Java primitive or object,
>> > previously bound variables, function calls, and operators" I wrote
>> >
>> >   OperatorOrder( $code: code, $id1: elId1, $id2: elId2 )
>> >   CommandCode( code == $code, operands != ( $id1!=null ? ($id2!=null ? 2
>> > :
>> > 1) : 0 ) )
>> >
>> > and got the erroneous error message:
>> >    Rule Compilation error : [Rule name='operator command: invalid number
>> > of
>> > elements']
>> >
>> >
>> > appl/domain/element/Rule_operator_command__invalid_number_of_elements_0.java
>> > (9:714) : $id2 cannot be resolved
>> >
>> > Variations in the return value restriction show that it is the nesting
>> > of
>> > -?-:- which causes the bug; a similar (but not equivalent) expression
>> >
>> >    operands != ( ($id1!=null ? 1:0) + ($id2!=null ? 1:0) )
>> >
>> > is accepted.
>> > -W
>> >
>> >
>> > _______________________________________________
>> > rules-users mailing list
>> > rules-users at lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>> >
>>
>>
>>
>> --
>>   Edson Tirelli
>>   JBoss Drools Core Development
>>   JBoss by Red Hat @ www.jboss.com
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>



-- 
  Edson Tirelli
  JBoss Drools Core Development
  JBoss by Red Hat @ www.jboss.com