Check for the non-existence of a fact specific to the rule on the LHS. When the rule fires, assert the fact to ensure it never fires again. For example

rule "Foo"
   when
          not Fired(rule == "foo")
....
   then
      insert(new Fired("foo"));
    ...
end

On Wed, Apr 15, 2009 at 11:53 AM, Brody bach <brodybach@yahoo.com> wrote:

Hi all,

Is there any way how I make a rule only executed once( i.e. if it has fired
once, no other facts should be checked against it)

Thanks for any hints
Regards
Brody
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