Hello,

I've 2 rules which should be similar but the result is different and I can't understand why :

I insert an object Message() into drools with the following rule :

rule "rule_a"
timer (int:1s 1s)
when
SimpleClock ( d : dateInMillisec != 0 ) // SimpleClock give the current time (set by a java timer and an update)

m : Message ( internalEndDate < d )
then
System.out.println( "rule a");

m.setInternalEndDate (d + 10000);
retract (m);

insert (m);
end

> the result is fine : a message every 10.

If I replace the rule_a by the rule_b : (because an update should be better than an retract/insert I guess)

rule "rule_b"
timer (int:1s 1s)
when
SimpleClock ( d : dateInMillisec != 0 ) // Simple slock give the current time (set by a java timer and an update)

m : Message ( internalEndDate < d )
then
System.out.println( "rule b");

m.setInternalEndDate (d + 10000);
update (m);

end

> the result is bad : a message every 1 second.

It act as if the attibute message.internalEndDate wasn't updated in the drools engine. Could someone explain me if/why this behaviour is normal ?

Thanks in advance

Marc