The things on a rule's LHS are not function calls, of course, so no,
you can't do what you've tried to do here. You can, however, use the
(test) CE -- see Jess 6 manual section 2.8.1.5.
I think Satish boggavarapu wrote:
[Charset iso-8859-1 unsupported, filtering to ASCII...]
>
> Thanks Ernest. That solved my silly problem :) I have another question. can
> i use "call" function only on the RHS side? I tried the following rule and
> its working in case 2 and not in case 1.
>
> case1:
> (defrule testbeans2
> (test1 (name ?name) (clli ?clli) (netPlane 1) (OBJECT ?test1))
> (call ?test1 hasLink "link1")
> =>
> (printout t "The NE matched with link1 is :" ?name crlf)
> )
>
> case1:
> (defrule testbeans2
> (test1 (name ?name) (clli ?clli) (netPlane 1) (OBJECT ?test1))
> =>
> (call ?test1 hasLink "link1")
> (printout t "The NE matched with link1 is :" ?name crlf)
> )
>
> In case2 the method hasLink is getting called and it returns a boolean true.
> I even printed whats being returned on to the jess side and it turns out to
> be the atom TRUE. So am i right in assuming i can not use call on the LHS
> side? or do i need to handle the return value in any specifc manner?
>
> I am basically testing how i can call methods in a java object by pasing
> certain arguments and also when that method call returns true so the
> condition evaluates to true (if called from LHS).
>
> Thanks for the help
> Satish.
>
>
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, April 18, 2001 10:07 PM
> To: Satish boggavarapu
> Cc: '[EMAIL PROTECTED]'
> Subject: Re: JESS: definstance on beans
>
>
> I think Satish boggavarapu wrote:
> [Charset iso-8859-1 unsupported, filtering to ASCII...]
> >
> > Hi All,
> >
> > I am trying to create definstances on a set of beans which has an
> ArrayList
> > in it with out much success. I am enclosing the error log and the code
> > snippets here. I appreciate any help indicating where i am going wrong.
> >
> > public interface Test1Intf {
> ...
> > public ArrayList getLinks();
> > public void setLinks(ArrayList aList);
> ...
> > public class Test2 extends Test1 implements Test2Intf {
> > ...................
> > }
> >
> ...
> > (defclass test1 jess.examples.pumps.Test1Intf)
> > (defclass test2 jess.examples.pumps.Test2Intf extends test1)
> >
> ...
> >
> > (defrule testbeans2
> > (test2 (name ?name) (clli ?clli) (netPlane 1) (link ?link)
> > =>
> > (printout t "The NE matched is :" ?name ?link crlf)
> > )
> >
> >
> > I am getting the following error. Where am i going wrong?
> >
>
> Sorry that Jess doesn't do a better job of reporting this error in a
> sensible way. The message "Bad index -3 in call to get() on this
> vector..." when defining a rule always means you've tried to match a
> nonexistent slot; usually it's a typo. The rule testbeans2 above is
> trying to match a slot named "link", but there is no such slot in any
> of your defclasses: there is, though, one named "links", as I've shown
> in Test1Intf above.
>
> > java jess.examples.pumps.Test
> > Exception in thread "main" Jess reported an error in routine
> ValueVector.get
> > while executing (batch jess/examples/pumps/test.clp).
> > Message: Bad index -3 in call to get() on this vector: (clli
> > <External-Address:jess.SerializablePropertyDescriptor> -1 links
> > <External-Address:jess.SerializablePropertyDescriptor> -1 location
> > <External-Address:jess.SerializablePropertyDescriptor> -1 name
> > <External-Address:jess.SerializablePropertyDescriptor> -1 netPlane
> > <External-Address:jess.SerializablePropertyDescriptor> -1 OBJECT nil
> 2048).
>
>
>
>
> ---------------------------------------------------------
> 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
>
---------------------------------------------------------
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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