Hi irejai, Well, if you only want to have a rule that responds to the presence ( or non presence) or a fact in the working memory, then you could have two rules. For example
(defrule isThere
(criteria)
=>
(execute this)
)
where the above executes if criteria is present as a fact. Then you have
another rule for oppositie.
(defrule notThere
(not (criteria))
=>
(execute that)
)
Check out the explanation of the not keyword at
http://www.jessrules.com/jess/docs/70/rules.html#not_ce
Brett
-----Original Message-----
From: [EMAIL PROTECTED] on behalf of m u
Sent: Tue 10/3/2006 7:40 AM
To: [email protected]
Subject: JESS: if else
Hi,
I understand how to make a rule in JESS like this:
if ( some criteria)
execute this
How about rule like this?
if ( some criteria)
execute this
else
execute this
thanks.
irejai
<<winmail.dat>>
