Re: [rules-users] Reg. Iterating over a list
Another issue I am stuck up is again a container operation (:( ).
I have my rule something like this:
//I have a global List defined as
global java.util.ArrayList cList
// Function isDefined as :
function boolean isDefined(Object o) {
return o != null;
}
//size as
function int size(List list) {
return list.size();
}
//and finally append as
function List append(List list, Number num) {
list.add(num);
return list;
}
rule "94"
agenda-group "Group 2"
dialect "mvel"
no-loop true
when
P : Project()
Project( isDefined(seq_A) && !(size(append(seq_A , 99 )) > 4))
then
System.out.println("Rule not satisfied # " + 94 + setStatics() );
cList.add(94);
end
.........................................
I declared a type called "Project" which basically holds the variables
seq_A, seq_B and everything else.
I configured the value of seq_A using a rule - with agenda group as "Config
rule".
The problem with the rule is that, it is firing and activating a similar
rule in a different agenda group. However, I am setting focus for each group
separately and firing rules like the following:
ksession.getAgenda().getAgendaGroup("Group Config").setFocus();
ksession.fireAllRules();
ksession.getAgenda().getAgendaGroup("Group 0").setFocus();
ksession.fireAllRules();
ksession.getAgenda().getAgendaGroup("Group 1").setFocus();
ksession.fireAllRules();
ksession.getAgenda().getAgendaGroup("Group 2").setFocus();
ksession.fireAllRules();
After the rules are fired, I am getting the value for P_seqA as [1, 2, 3, 4,
5, 199, 199], where as my intention was to to get [1, 2, 3, 4, 5, 199]. In
essence, the append function is being called two times. This is the same
case for any of the append (and prepend) operations, I am doing.
This seems to be very confusing to me and I have already spend hours on
this. I just do not want to activate rules outside the current agenda group.
Many many thanks in advance :)
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