Re: [rules-users] looping over list
Hi,
Maybe can you try the "collect" keyword? According to what I see in the
documentation (4.8.3.9. Conditional Element collect) it seems to fit
your needs.
I'll probably give this a try:
rule "Select Officer"
ruleflow-group "select_officer"
no-loop true
salience 20
when
$processInstance: WorkflowProcessInstance()
$requestData: RequestData($genre : genre, $cost : cost)
$sublist : ArrayList()
from collect( Officer( minimumCost <= $cost, $cost <=
maximumCost ) from $genre)
then
System.out.println("Hey!");
List shrunkOfficersWithGenre = $sublist;
end
Best regards,
Bruno (newbie).
odelyaholiday a écrit :
I have a list of officers:
public static final Map<String, List<Officer>> officersPerGenre = new
HashMap<String, List<Officer>>();
Where the Officer with:
String name;
Integer mininumCost;
Integer maximumCost;
in officersPerGenre I fill for each genre list of officers.
In my drools:
rule "Select Officer"
ruleflow-group "select_officer"
no-loop true
salience 20
when
$processInstance: WorkflowProcessInstance()
$requestData: RequestData();
then
System.out.println("Hey!");
List officersWithGenre = (List)officers.get($requestData.getGenre());
end
Now I need to shrink the officersWithGenre only to officers that
$requestData.cost is between their mininumCost and maximum cost.
How do I write it in drools? In java i will simply iterate over the
collection.