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
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