[rules-users] How to pass a "global" reference date to rules

[Wolfgang Laun]

You can run your session with a pseudo-clock, advanced to the point in
time that corresponds to your reference date.


KnowledgeSessionConfiguration config =
   KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
config.setOption(ClockTypeOption.get("pseudo"));

StatefulKnowledgeSession session =
   knowledgeBase.newStatefulKnowledgeSession(config, null);
SessionPseudoClock clock = session.getSessionClock();
// session clock := NOW
clock.advanceTime( (new java.util.Date()).getTime(), TimeUnit.MILLISECONDS );

// session clock := TOMORROW
clock.advanceTime(1, TimeUnit.DAYS);

This rule would fire, today being the 5-Feb-2013.
rule test
date-effective "6-Feb-2013"
date-expires   "7-Feb-2013"
when
    $i: Integer()
then
    System.out.println( "Integer " + $i );
end


On 05/02/2013, pdario <dario.piantanida at gmail.com> wrote:
> Hello, I need to have my rules reason with a reference date different than
> today (so I can't use the rule attributes "date-effective",
> "date-expires").
>
> I declared a global java.utile.Date, I set it in Java, but I cannot reason
> on it...
> I don't want to put in each rule a generic Date fact.
>
> What do you suggest to solve this?
>
> Thank you!
>
>
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/How-to-pass-a-global-reference-date-to-rules-tp4022057.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
>