Re: [rules-users] counter in slidingTime window with restriction
Hard to believe, but who knows.
Drools version and session setup, please.
-W
On 05/09/2013, Alexander Wolf <mail(a)alexander-wolf.net> wrote:
Hey guys,
I wrote a rule to count the SensorEvents in my KnowledgeSession that have
been inserted via entry-point SensorEventStream over the last 3 seconds -
but I only want the event to fire, if there were any events in the last 3
seconds at all.
Problem: if there were no recent events, i still get the output:
> Events in last 3 seconds: 0
I don't really get why?! This is my rule code:
rule "slidingTimeCount"
when
$n: Number (intValue > 0) from accumulate ( $e: SensorEvent() over
window:time(3s) from entry-point SensorEventStream, count($e))
then
System.out.println("Events in last 3 seconds: " + $n);
end