Hmm. I'll have to think about whether (test) should be supported in
defqueries or not. I'm on vacation so I can't actually check the
source right now but i t seems tome as if there would have to be some
special accomodation to make this work. I'll let you know after
Christmas.
I think Michal Fadljevic wrote:
> Hi everyone,
>
> I am impressed by the quality of the Jess.
> It is really powerfull system. {:)
>
> I have simple question:
> Is this query supposed to work ?
>
> (deftemplate person
> (slot id (type INTEGER) (default 0) ) ;; 0 means not initialized
> (slot sex (type ATOM) (default nil) ) ;; male/female atoms
> (slot mother (type INTEGER) (default 0) ) ;; 0 means not initialized
> (slot father (type INTEGER) (default 0) ) ;; 0 means not initialized
> )
> ...
> (defquery children-of (declare (variables ?id))
> (person (mother ?mid) (father ?fid))
> (test (or (= ?id ?mid) (= ?id ?fid)))
> )
>
> the run-query complains about sth like
> Value.listValue while executing (= ?id ?mid)
> Not a list: "1" (type = INTEGER).
>
> But there are only integer number involved in this query,
> so why is he expecting list ?
>
> Am I missing something about concept of queries ?
>
> Thank you very much
> Michal
> --
> [EMAIL PROTECTED] phone: 415.876.0187 pager: 415.253.8030
>
>
>
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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
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