I always do a jess.updateObject(myShadowFact) before the jess.run() call but I'll look again at it. Thanks.
> From: [EMAIL PROTECTED]> Subject: Re: JESS: < strange behavior> Date: Fri, 19 > Jan 2007 09:42:21 -0500> To: [email protected]> > > On Jan 19, 2007, at > 12:00 AM, Skeptic 2000 wrote:> > >> > Hi,> >> > I have a rule looking > something like :> >> > (defrule wcooo ; exemple pour un while> > > (MyShadowfact (OBJECT ?o))> > (test (< (str-length (?o methodreturningastring > "param")) 3))> > =>> > (printout t "rulefired" (str-length (?o > methodreturningastring > > "param")) crlf))> >> > And I strangly get the > rulefired message with values like 4, 5, 6, ...> >> > Remember that > pattern-matching is driven by facts being asserted, > retracted, or modified. > In particular, the test above will be > evaluated only when the object is > first put into working memory, or > when a change event or modify call causes > it to be reevaluated. My > guess is that your method methodreturningastring > returns a value > which changes over time without Jess being notified in any > way about > the change. You will need to tell Jess when this value changes -- > for > example, by using the Rete.updateObject() method.> > > ---------------------------------------------------------> Ernest > Friedman-Hill> Advanced Software Research Phone: (925) 294-2154> Sandia > National Labs FAX: (925) 294-2234> PO Box 969, MS 9012 [EMAIL PROTECTED]> > Livermore, CA 94550 http://www.jessrules.com> > > --------------------------------------------------------------------> To > unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]'> in > the BODY of a message to [EMAIL PROTECTED], NOT to the list> (use your own > address!) List problems? Notify [EMAIL PROTECTED]> > --------------------------------------------------------------------> _________________________________________________________________ Soyez parmi les premiers à essayer Windows Live Mail. http://ideas.live.com/programpage.aspx?versionId=5d21c51a-b161-4314-9b0e-4911fb2b2e6d
