[rules-users] The update function inside a rule

Wolfgang Laun wolfgang.laun at gmail.com
Tue Mar 29 15:34:38 EDT 2011


On 29 March 2011 19:04, marc <marc.strabin at gmail.com> wrote:

> Thanks,
> The JBRULES-2825 seems to be a similar issue indeed !
>
> The timer is necessary: When change the value of SimpleClock and I only do
> an update (obj), without calling fireAllRules(). That way the rule doesn't
> fire...  Is-it an other problem ??
>
> If I do a update + fireAllRulles() when I change the timer, the rule_b fire
> fine every 10 seconds. (without timer in the rule..)
>
> Sorry, but I do not understand what you mean by any of these two scenarios.
-W



>
> I think there is an open JIRA for a very similar issue:
>
> JBRULES-2825 &quot;rule with timer and CE not keeps firing after turning
> false&quot;
>
> I have added these two rules as a comment.
>
> However, the timer isn't necessary in this here case. Since the SimpleClock
> fact is updated periodically, the engine will fire the rule as soon as
> dateInMillisec exceeds the clock value in the Message fact.
>
> Both rules work correctly, if written without the timer.
>
> Actuallay, the timer doesn't have any effect (except wasting a few cycles).
> If the LHS becomes true, it delays the first firing by 1s, and then the LHS
> is made false by changing the Message object. This stops the timer! But
> then, eventually, the LHS becomes true again, and *another timer *is
> started, delays 1s, fires, and terminates.
>
> -W
>
>
>
> --
> View this message in context:
> http://drools-java-rules-engine.46999.n3.nabble.com/The-update-function-inside-a-rule-tp2747484p2749346.html
> Sent from the Drools - User mailing list archive at Nabble.com.
> _______________________________________________
> 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/20110329/6d2c0545/attachment.html 


More information about the rules-users mailing list