Hello,
While testing Jess during my "initiation", I have
noticed what might be a bug.
When I tried the example (below) given in the user
manual
(http://herzberg.ca.sandia.gov/jess/README.html),
it worked fine under Windows NT, but with Linux
(RedHat 5.1), I got the window but not the button.
Does anyone know why?
Regards,
T. LEBARBE
-----------------------------------------------
Here's a complete program in Jess:
(defglobal ?*f* = (new java.awt.Frame "Button
Demo"))
(defglobal ?*b* = (new java.awt.Button "Hello"))
(deffunction say-hello (?evt)
(printout t "Hello, World!" crlf))
(?*b* addActionListener
(new jess.reflect.ActionListener say-hello
(engine)))
(?*f* add ?*b*)
(?*f* pack)
(set ?*f* visible TRUE)
The Jess engine function returns the jess.Rete
object in which it is executed, as an external
address. You'll have to quit using ^C. To fix
this, you can add a
WindowListener which handles WINDOW_CLOSING events
to the above program:
(deffunction frame-handler (?evt)
(if (= (?evt getID) (get-member ?evt
WINDOW_CLOSING)) then
(call (get ?evt source) dispose)
(exit)))
(?*f* addWindowListener
(new jess.reflect.WindowListener frame-handler
(engine)))
Now when you close the window Jess will exit.
Notice how we can examine the ?evt parameter for
event information.
--
---------------- Thomas LEBARBE -----------------
Departement Informatique
Universite de Caen, Campus II
Tel: 02-31-56-73-77
Email: [EMAIL PROTECTED]
------ Traitement Automatique des Langues -------
Courteline : Si on devait tol�rer des autres ce que l'on se permet � soi-m�me, cela
deviendrait invivable !
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