Jason,
Yes, the engine does not see any change in TestObject until you call
update() for it.
In your case, I would play that a bit different:
rule "remove objects older than 2 seconds"
when
Clock( $cur : currentTime )
$to : TestObject( creationTime < ( $cur - 2000 ) )
then
System.out.println(new java.util.Date() + " ========= Retracting " +
$to);
retract($to);
end
This way you only need to update your clock object and not your
testObjects.
[]s
Edson
2007/7/6, Jason Vasquez <jason(a)mugfu.com>:
Hi all,
I need a set of rules to fire on time-based criteria. I have a
'Clock' object in working memory, along with an unknown number of
'TestObject's, each of which can report its 'age'. At some interval,
I modify the Clock object in working memory, and then fire the
rules. As a start (which I'm certain shouldn't work anyway), I'm
playing around with a rule like this:
rule "remove objects older than 2 seconds"
when
Clock()
$to : TestObject( ageInMillis > 2000 )
then
System.out.println(new java.util.Date() + " ========= Retracting "
+
$to);
retract($to);
end
It appears that the RHS is never executed, presumably because
TestObjects were not modified. (I'm new to JBossRules, so I'm
unclear on that )
Alternatively, I could just remove the Clock() constraint and iterate
an external collection of TestObject's, marking each object as
modified. Just looking for the best way here...
Thanks,
-jason
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Edson Tirelli
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