[rules-users] retracting a fact after all interested rules have fired??

[Francesco Campagnola]

Hi, I have a similar problem, in particular I need that before retracting
facts, all the interested rules have fired. How do you solved it?

2007/2/8, Justine Hlista <justine at vsasset.com>:
>
> Need some instruction for retraction strategies. We have an application
> that receives messages about the status of various things in the system, and
> at the moment I am asserting these messages as facts. The rules are written
> against these messages. Various rules might be interested in various values
> in the message, and they all fire independently. The problem is that after
> all the existing rules that are interested in the message have fired, I want
> to retract the message. How do I ensure that all the interested rules have
> fired first??
>
> At the moment, I am trying to use a salience value of -1 to make sure a
> simple "cleanup" rule fires last:
>
> rule "cleanupMessage"
> no-loop true
> salience -1
>     when
>         msg : MyMessage()
>     then
>         retract(msg)
> end
>
> Does this sound like a reasonable solution? Is there a better one??
>
> Thanks!
>
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