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
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