Re: [rules-users] Question about managing working memory facts
If you know what is the timestamp attribute, you can even write a rule...
:)
rule "garbage collect"
salience 100 // use a reasonable salience
when
$e : Event( $ts : timestamp )
not Event( timestamp < $ts )
Number( intValue > 1000 ) from accumulate(
$c : Event(),
count( $c ) )
then
$retract( $e );
end
Not sure if it is the best way, but should work... :)
[]s
Edson
2008/2/19, Zoltan Farkas <zoly(a)daxtechnologies.com>:
I am looking to implement a system that has as facts "events" that happen
randomly.
How is the best way to implement a "garbage collection" mechanism that if
the number of "events" in the working memory reaches a limit value will
retract the oldest event/s…
Thanks
--zoly
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Edson Tirelli
JBoss Drools Core Development
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