[rules-users] Basic doubt regarding Drools Fusion - @expires

[Edson Tirelli]

   By default, Drools does not start any internal thread, so that you can
embed it in non-multithread applications or in JEE containers. That means
that the actual release of events in such cases depends on triggers. In your
example, after 1h has passed, whenever something happens to the session (a
new rule is fired, a new event is inserted, the session clock is advanced,
etc), the event will be expired as part of the action. Remember though that
it only happens when running in STREAM mode. In CLOUD mode, event garbage
collection does not make sense and will not happen.

  Edson

2011/3/16 Makewise - Vitor Rui Mendonça <Vitor.Mendonca at brisa.pt>

>   Hi all!
>
>
>
> I’ve got a really basic doubt… I’ve read several documentation regarding it
> but I think I need some advice here…
>
>
>
> Imagine that I have an event:
>
> *declare* A
>
>       @role( event )
>
>       @expires( 1h )
>
> *end*
>
>
>
> On my Java code, I call “fireAllRules()” method every time that I put an
> event into the working memory.
>
>
>
> My doubt: When does event A expires?
>
> a)      One hour after it was inserted (time-based and without the
> “fireAllRules()” method call) or
>
> b)      by calling “fireAllRules()” method (event-based)
>
>
>
> T.I.A.
>
>
>
>   Vítor Mendonça Moreira
> *Analista / Programador
> Direcção de Investigação e Desenvolvimento*
>
> Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq.
> 2500 - 206 - Caldas da Rainha
> Tel: (+351) 262 832 196
> Fax: (+351) 262 186 455
> Web: www.makewise.pt
> Uma empresa: Grupo Sousa Pedro <http://www.sousapedro.com>
>
>
>
>
>
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-- 
  Edson Tirelli
  JBoss Drools Core Development
  JBoss by Red Hat @ www.jboss.com
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