[rules-users] For loop inside a modify block problem

[Martin A]

Hello, Wolfgang,

Looks like the same problem appears on my side... So is it a bug, or misuse
of the MVEL syntax?

Best regards,
Martin

On Thu, Jan 12, 2012 at 4:11 PM, Wolfgang Laun <wolfgang.laun at gmail.com>wrote:

> Using 5.3.0 Final.
>
> The reported compilation problem ("no such identifier: $item") occurs
> with dialect MVEL, which appears to be broken w.r.t. RHS code containing
> a "for" statement. Note: the error is not flagged for the preceding
> occurrrence
> of $item, in $item.id.
>
> Different kind of errorscan  occur, depending on how the "for"
> statement is written,
> for example:
>   int h = 10; for( int i = 0; i < h; i++) { ... }   ## Error: no such
> identifier: h
>
> Avoid dialect MVEL - using Java and getters works fine.
>
> -W
>
>
> On 11/01/2012, Martin A <wmlsub at gmail.com> wrote:
> > Hi, Davide,
> >
> > Here is how my rule looks like :
> >
> > when
> >     $item : Item(param1 != 0, param2 == 0, !(this instanceof
> SpecialItem))
> >     $gsc : SomeBusinessLogic
> > then
> >     $gsc.doSomething($item.id);
> >     for (int i = 0; i < $item.quantity; i++) {
> >         $gsc.doSomethingElse($item.id);
> >     }
> >     update($gsc);
> > end
> >
> > The above snippet throws an error @ i < $item.quantity, and says 'no such
> > identifier $item'...
> > I can't figure out what might be causing this.
> >
> > Thanks
> >
> > On Tue, Jan 10, 2012 at 10:08 PM, Davide Sottara <dsotty at gmail.com>
> wrote:
> >
> >> Did you remember to bind $item to some expression in the LHS ? Maybe you
> >> just
> >> called that "item" without the $ :)
> >> Davide
> >>
> >> (the original "modify" syntax is still wrong anyway)
> >>
> >> --
> >> View this message in context:
> >>
> http://drools.46999.n3.nabble.com/rules-users-For-loop-inside-a-modify-block-problem-tp3648460p3648718.html
> >> Sent from the Drools: User forum mailing list archive at Nabble.com.
> >> _______________________________________________
> >> rules-users mailing list
> >> rules-users at lists.jboss.org
> >> https://lists.jboss.org/mailman/listinfo/rules-users
> >>
> >
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