[rules-users] mixing activation-group and ruleflow-group

[raffi]

Thank you so far.

I also noticed that my solution is in some way unefficient if there are a
lot of categories. I not only have to change rules saliences, I do have to
change the /not Recommendation(cname == "pets"...)/ lines in every rule,
too.
So I have a new approach leave out the removing of Recommendation facts. The
solution is near yours, laune. But I have a new problem now. I added a value
variable (double) to my Recommendation class. I also added a new class that
holds a HashMap (<String, Double>). Where String is the name of the category
and the double value is dependent on the category (higher prioriry, higher
value). And I now like to calculate the value for each Recommendation that
was added.
rule "calculate recomm value"
	salience 15
	when
		$recomm	: Recommendation($cname : cname, $recomm_value : recommValue)
		$map	: HashMap(FilterCriteria.categories)
	then
		modify ($recomm) {
			setRecommValue($recomm_value * $map.get($cname))
		}
end

But eclipse says: /The operator * is undefined for the argument type(s)
double, Object/
Using $map.get("test") in a normal java class works perfect and return the
expected double value. Where is the mistake in the rule?

Thank you



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