[rules-users] possible bug in latest SNAPSHOT - AccumulateFunction.init() is called when calling modify()

[Michal Bali]

You're probably right.

I have modified the last rule:
----------------------------
rule "GoodBye"
no-loop true
when
$holder : Holder( )
                ...
-------------------------------
and it now works as expected.

However, this is still an issue...

Best regards,
Michal


On Wed, May 12, 2010 at 2:25 PM, Salaboy <salaboy at gmail.com> wrote:

> Could be that the modify make the rule condition to be no longer true,
> and for that reason the acumulation is zero in that point? I would
> like to try it but I'm in my cell phone.
>
> - Ing. Mauricio Salatino -
>
> On May 12, 2010, at 6:58, Michal Bali <michalbali at gmail.com> wrote:
>
> > Hi,
> >
> > I may have found a bug with accumulate and 'modify(..)' function
> > call. It seems that once the modify(..) is called it indirectly
> > calls AccumulateFunction.init() which invalidates accumulated data.
> > I have included a simple test case:
> >
> > I am using the latest snapshot of Drools 5.1.SNAPSHOT
> >
> > I have created a sample Drools project and just modified the
> > Sample.drl with this:
> > -------------------------------------------------------------
> > import java.util.List;
> > import java.util.ArrayList;
> >
> > declare Holder
> >   list : List
> > end
> >
> > rule "Hello World"
> >       when
> >               m : Message( )
> >       then
> >               insert(new Holder());
> > end
> >
> > rule "GoodBye"
> >       when
> >               $holder : Holder( list == null )
> >               $messages : List() from accumulate(
> >                       $message: Message(), collectList($message) )
> >       then
> >               System.out.println($messages); //<-- here the $messages
> list has
> > one element
> >               modify($holder) {
> >                       setList($messages)
> >               }
> >               System.out.println($messages); //<-- here the $messages
> list is
> > empty
> > end
> > -----------------------------------------------------
> >
> > Let me know if you need more information. I can create a JIRA if
> > needed.
> >
> > Thank you!
> > Best regards,
> > Michal
> > _______________________________________________
> > 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
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20100512/dc6f8ef7/attachment.html