Hello Ernest,
thanks for the quick response!
1) yes, the facts are in working memory:
[...]
f-4547 (MAIN::Person (ak "ANG06") (class <Java-Object:java.lang.Class>)
(data "[OED|ANG06|2000|Gerdes|Harald|M|1961-08-12]") (gebdat
<Java-Object:java.sql.Date>) (gebdatStr "1961-08-12") (geschl "M") (key
"OED|ANG06|2000") (man "OED") (naname "Gerdes") (pnr "2000") (reference "?")
(vorname "Harald") (OBJECT <Java-Object:com.PIAG.jess.Person>))
For a total of 4548 facts in module MAIN.
2) for the datetest i added a string returning function to Person and it
works
yes, there ist a getKey() method
3) yes, .run() was called
4) Person supports PropertyChangeListeners
but this will not work:
(defrule testit ""
?p1 <- (Person {key == "TMT|002|101"} (data ?data1))
?p2 <- (Person {key == "011|002|5"} (data ?data2))
=>
(printout t "Bingo!" crlf)
)
if i comment out the line with "?p1 <- ..." or "?p2 <- ..." the one fact
match.
but if i look for both facts, they are not found (i also tried with other
attributes).
regards
klaus
-----Ursprüngliche Nachricht-----
Von: Ernest Friedman-Hill [mailto:[EMAIL PROTECTED]
Gesendet: Donnerstag, 23. November 2006 17:25
An: jess-users@sandia.gov
Betreff: Re: JESS: Newbie-Question/Problem(?)
Everything here looks quite reasonable, but of course, the devil is
in the details. Things to make sure of:
1) The Person objects have to actually be added to working memory;
you might use the "(facts)" function to check that.
2) The rules below will work if, and only if, Person has a "String
getKey()" method and a "String getGebdat()" method, and they return
precisely the values given in the rules.
3) Rules won't fire until you call "(run)" or jess.Rete.run().
4) If Person doesn't support PropertyChangeListeners, then the
Rete.updateObject() has to be called whenever an object's property
values change, or Jess won't know about the new values until you call
(reset).
Feel free to follow up with questions, but try to provide evidence to
support some of the above.
On Nov 23, 2006, at 9:34 AM, Thiele, Klaus wrote:
> Hello,
>
> i'm currently evaluating Rule-Engines. I've started with JBossRules,
> currently i do some tests with Jess.
>
> I try to port my Testrules from JBRules to Jess and i can't get
> these two
> rules work:
> (
> - Person is a JavaBean with getter/setter
> - there are ~5000 Person-Objects in WorkingMemory
> - behind 'data' is a getter-method which only returns string with all
> attributes
> )
>
> (import com.PIAG.jess.Person)
> (deftemplate Person (declare (from-class Person)))
>
> (defrule datetest ""
> (Person {gebdat == "12-Aug-1961"} (data ?data))
> =>
> (printout t "datetest: " ?data crlf)
> )
>
> no matches! how to deal with 'date' datatypes?
>
> (defrule moditest ""
> ?p1 <- (Person {key == "002|003|2034"} (data ?data1) (naname ?
> naname1))
> ?p2 <- (Person {key == "UNST|002|3"} (data ?data2))
> =>
> (printout t "moditest: " ?data1 " - " ?data2 crlf)
> (modify ?p2 (reference ?naname1))
> )
>
> no matches!
>
> please point me in the right direction. currently i'm studing the
> manuals
> but i did'nt found anything
> about my problem.
>
> regards
> -klaus
>
>
> --
> Klaus Thiele - Personal & Informatik AG
> mailto:[EMAIL PROTECTED]
>
> "Ein wichtiger Charakterzug großartiger Programmierer ist
> konstruktive
> Faulheit..."
> Eric S. Raymond
>
>
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---------------------------------------------------------
Ernest Friedman-Hill
Advanced Software Research Phone: (925) 294-2154
Sandia National Labs FAX: (925) 294-2234
PO Box 969, MS 9012 [EMAIL PROTECTED]
Livermore, CA 94550 http://www.jessrules.com
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