I am new to JBoss rules.
My drl file is not resulting in the functionality that I am expecting.
I know that I shouldn't be counting on the rules firing in a particular order, but I find that as I debug my code, the 'when' of the 3 rules are evaluated first, and then the 'then's. For eg. the SetWatch gets called after DistanceKm(Rule1), DistanceKm(Rule2) and CountWatching(rule3) are called. I expected SetWatch to get called after DistanceKm of Rule2 got called i.e. I expected the 'when' and the 'then' to get evaluated sequentially. Is my understanding wrong? I tried setting the salience of the 3 rules, but I get the same behaviour. Is there something else I need to do, to get the functionality I need?
The 3 rules in my drl as given below.
rule "Rule1"
when
$GeoPosition1 :
GeoPosition()
$GeoPosition2 : GeoPosition()
eval(util.StringEqual($GeoPosition1.getType(), "PRPT"))
eval(util.StringEqual($GeoPosition2.getType(), "SI"))
eval(util.DistanceKm($GeoPosition1, $GeoPosition2) > 100.0)
eval(util.Watching($GeoPosition1, $GeoPosition2))
then
util.ClearWatch($GeoPosition1, $GeoPosition2);
end
rule "Rule2"
when
$GeoPosition1 : GeoPosition()
$GeoPosition2 : GeoPosition()
eval(util.StringEqual($GeoPosition1.getType(), "PRPT"))
eval(util.StringEqual($GeoPosition2.getType(), "SI"))
eval(util.DistanceKm($GeoPosition1, $GeoPosition2) <= 100.0)
eval(! util.Watching($GeoPosition1, $GeoPosition2))
then
util.SetWatch($GeoPosition1, $GeoPosition2);
end
rule "Rule3"
when
$GeoPosition1 : GeoPosition()
eval(util.StringEqual($GeoPosition1.getType(), "PRPT"))
eval(util.CountWatching($GeoPosition1) >= 1)
then
util.SetThreat($GeoPosition1, 1.0);
util.SetColor($GeoPosition1, "red");
end