Re: [rules-users] counter in slidingTime window with restriction

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: 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