Fusion
On 11/02/09 6:35 PM, "Denny Lee" <denny_junk_mail(a)yahoo.com> wrote:
Hello,
I am new to Drools. We have been using JESS for a while and ran into a
problem that we cannot solve and is hoping Drools have a solution. Is there
anything in the Drools language / rules that allows for temporal evaluation
within the rules? What I mean is, say your rule examines 2 variables, var1
and var2, and if both are true it fires. Is there any way/technique to say
"If var1 becomes true and var2 was ALREADY true, fire" and "If var1 was
ALREADY true and var2 becomes true, DO NOT fire?" I've worked w/ JESS and
there is nothing built into the language that does this. Is there something
in Drools that can handle this or some general techniques that can deal with
something like this?
Thanks.
Denny
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