[rules-users] Heap and scheduled Activations

[cyberdav at free.fr]

Hi everyone,

I've wrote that rule:

rule "COMPTEUR"
duration 10000
when
	$alarme : Alarm ();
then
	$alarme.increment();
	update($alarme);
end

Using JProfile, I've noticed that PropagationContextImpl was constantly growing
in the heap. Then, I looked the scheduled activations and saw that some
scheduledExecutionTime was expired. So, I wrote this code to purge the expired
activations:

Activation[] activations = session.getAgenda().getScheduledActivations();
long now = (new Date()).getTime();
for(int i=0;i<activations.length;i++){
	if( now >
((org.drools.common.ScheduledAgendaItem)activations[i]).scheduledExecutionTime()){
		activations[i].remove();
	}
}

Now, the heap isn't growing anymore but what are the consequences of doing
something like that? So far, there are no noticeable regression on my
application.

Thanks for your help.
Dav.