JESS: deffacts with a java method call

[Catherine CLEDER]

Hello,

I have a problem to combine, in Jess, a value returned by a method on a java fact, and a deffacts fact.


once I have
-------------------------------------------------------------------------------------------------------------------
(deffacts ConnaissanceLing
(typeSavoirApprenant "implicite" " relation spatiale")
(typeSavoirApprenant "implicite" " correspondance chaine ecrite orale") )
-------------------------------------------------------------------------------------------------------------------


and secondly I have a rule such as :

-------------------------------------------------------------------------------------------------------------------
(defrule ruleTest
(uop
(conn ?connUO)
(OBJECT ?o2) )
(typeSavoirApprenant "implicite" "toto") ; this call to a deffacts is ok.
(typeSavoirApprenant "implicite" (get ?connUO objet)) ; <------------- generate a bad slot value !
; (porteSur "texte" (get ?o2 objet))

=>
(printout t " RCO-Priorite-1.05 appliquie" crlf)
)
-------------------------------------------------------------------------------------------------------------------

In this rule, the third instruction call a fact from the deffacts, with a (get ?connUO objet) that returns a String (java.lang.String). and Jess generate a Bad Slot value ...
Is it impossible to use this way ?

Thanks for your help,

Catherine CLEDER

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