[rules-users] Collect Function

[Edson Tirelli]

   Ronald,

   you are doing:

ArrayList( size == 0 )

   Am I missing anything?

   []s
   Edson

2008/1/11, Ronald R. DiFrango <ron.difrango at gmail.com>:
>
> All,
>
> I have the following rule which uses the collect function:
>
> rule "Invalid RR Line"
>     salience 100
>
>     when
>         rrDetailLine : DetailLine(detailKeyRecNo:keyRecNo != null,
> lineNumber != null )
>         rrHeader : ArrayList( size == 0 ) from collect(RrHeader( keyRecNo
> != detailKeyRecNo ))
>     then
>         // logger.debug("Invalid RR Line: " + rrHeader.size());
>         logger.debug("Invalid RR Line: " + rrDetailLine.getKeyRecNo());
>         logger.debug("Invalid RR Line: " + rrDetailLine.getLineNumber());
>         drools.halt();
> end
>
> What I am seeing is that if I only have 1 RrHeader in working memory this
> rule fails.  Th reason I know that there is an RrHeader object is that I
> change the rule to the following:
>
> rule "Invalid RR Line"
>     salience 100
>
>     when
>         rrDetailLine : DetailLine(detailKeyRecNo:keyRecNo != null,
> lineNumber != null )
>         rrHeader : RrHeader( keyRecNo != detailKeyRecNo )
>     then
>         // logger.debug("Invalid RR Line: " + rrHeader.size());
>         logger.debug("Invalid RR Line: " + rrDetailLine.getKeyRecNo());
>         logger.debug("Invalid RR Line: " + rrDetailLine.getLineNumber());
>         drools.halt();
>
> end
>
> And it worked just fine.
>
> Thoughts?
>
> Ron
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>


-- 
  Edson Tirelli
  JBoss Drools Core Development
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20080111/ad265a4a/attachment.html