"is-a" is part of COOL, which is not supported in Jess. Instead of
matching on instances of COOL classes, Jess can match Java Beans.
I think Arslan Basharat wrote:
[Charset Windows-1252 unsupported, filtering to ASCII...]
> hi all,
>
> I am new to JESS and wanted to know if there is an 'is-a' in JESS like that
> of CLIPS. the code I am using is
>
> (defrule end-test1-1
> (declare (salience -50))
> ?a<-(job test1)
> (not (object
> (is-a constraint)
> (cons-violation yes)
> )
> )
> =>
> (retract ?a)
> (assert (job optimize))
> )
>
> I am reading the above rule from a .clp file. And the error I am receiving
> is
>
> Jess reported an error in routine Jesp.parsePattern.
> Message: Bad slot value .
> Program text: ( defrule end-test1-1 ( declare ( salience -50 ) ) ?a <-
> job t
> est1 ) ( object ( at line 4.
>
> Waiting for a helpful reply. I hope that I am not doing some silly mistake
> here. Thank you all in advance.
>
> regards,
>
> ****************************
> Arslan
> ____________________________________________
> Criminal : A guy no different from the rest... except that he got caught.
>
>
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Sandia National Labs FAX: (925) 294-2234
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