Arrgh! 9 hours late, and just minutes after my reply. Now that's
dedicated service!
I should have known Ernest was already on top of it :)
-Dave Barnett
On Wed, 5 Jul 2000, friedman_hill ernest j wrote:
> Hi Jack,
>
> Well, you can't pluck one out of thin air, since createMyFact could
> theoretically be called from within any one of a dozen Rete objects in
> an app. The easiest thing to do here would be to give createMyFact a
> Rete argument, then call it as
>
> (call ?SomeClassInstance createMyFact (engine))
>
> or alternatively give ?SomeClassInstance's class a constructor that
> takes a Rete as a constructor argument.
>
>
> I think Jack Kerkhof wrote:
> > Hello again,
> >
> > Today I thought I'd play around with trying to make some Jess calls in
> > java, but have run into what seems like a trivial problem that I just
> > can't figure out:
> >
> > I am calling a java method from a jess script, and creating a Fact in
> > that method.
> > The problem is how to get the current Rete instance?
> >
> > I.e. In the .clp file:
> > ...
> > (call ?SomeClassInstance createMyFact)
> > ...
> >
> > In the java code
> > ...
> > public void createMyFact() {
> > Fact f = new Fact("MyTemplate", reteInstance);
> > f.setSlotValue("A", new Value(1, RU.INTEGER));
> > reteInstance.assert(f);
> > }
> > ...
> >
> > Where do I get "reteInstance" from? Most examples simply create one in
> > Java, but alas I'm starting from an existing engine. I have a feeling
> > from section 4.3 that Context.getEngine() is involved, but I'm afraid I
> > have not located an example in the doc.
> >
> > thank you in advance,
> >
> > Jack
> >
> >
> >
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> >
>
>
>
> ---------------------------------------------------------
> Ernest Friedman-Hill
> Distributed Systems Research Phone: (925) 294-2154
> Sandia National Labs FAX: (925) 294-2234
> Org. 8920, MS 9012 [EMAIL PROTECTED]
> PO Box 969 http://herzberg.ca.sandia.gov
> Livermore, CA 94550
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