Put
   (ppdeftemplate MAIN::painting)
right in front of the (deftemplate painting...)

What is printed?
-W


On Thu, Apr 2, 2009 at 3:14 PM, John Chrysakis <[email protected]>wrote:

>
> Hello,
>
> I've tried both of them (deftemplates or defclass)
>
> but I am getting the same:
>
>  Message: Cannot redefine deftemplate MAIN::painting
>
> any ideas?
>
>
> On Wed, 1 Apr 2009, Wolfgang Laun wrote:
>
> > You may also use deftemplate, e.g.
> >     (deftemplate painting extends artifact (declare (from-class
> painting)))
> >
> > The pros and cons for either form are discussed in the Jess manual, 5.3.1
> >
> > Also note that, from Jess, you don't need to go the roundabout way using
> > OBJECT;
> > you can modify the slot in the Shadow Fact, and the Java object will  be
> > updated
> > automatically.
> >
> > -W
> >
> > On Tue, Mar 31, 2009 at 9:15 PM, <[email protected]> wrote:
> >
> > > I think the "extends" in the defclass is what you want.
> > >
> > > (defclass artifact artifact)
> > > (defclass painting painting extends artifact)
> > > (defclass statue statue extends artifact)
> > >
> > > -Russ
> > >
> > > -----Original Message-----
> > > From: [email protected] [mailto:[email protected]]
> > > On Behalf Of John Chrysakis
> > > Sent: Tuesday, March 31, 2009 11:50 AM
> > > To: [email protected]
> > > Subject: JESS: Inheritance in Deftemplates
> > >
> > >
> > > Hello again,
> > >
> > > I have the Java classes painting,statue which extend the class
> artifact.
> > > I need to model them in deftemplates in such a way that I could get
> both
> > > of instances with one defrule:
> > >
> > > (defrule checkAPP
> > >
> > > "Setting a property for all instances"
> > >  (artifact (OBJECT ?art) )
> > >
> > > =>
> > >    (?art setDatatypeProperty_1 "OK")
> > >    (update ?art)
> > > )
> > >
> > >
> > > How I can do that?
> > >
> > > thanks in advance,
> > > John.
> > >
> > >
> > >
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