[rules-users] Class Casting in a Collection data
VinuJay
vinod.jayendra at wipro.com
Mon Jun 15 05:51:33 EDT 2009
Hi my fact object looks like this,
class ProcessRequest {
Long requestId;
String processType;
String assigneeUsers;
HashTable<String,Object> businessData;
//Getters and Setters
}
My businessdata can be of type Integer, String, Boolean, hence i have used
generic Object for the business data value.
But if i use any mathematical operator in the rules (.drl) file like,
rule "Assign"
when
p: ProcessRequest(processType == "LoanFlowPlus" &&
businessData['LOANAMOUNT'] < 5000)
then
p.setAssigneeUsers("jcooper");
end
i get an error
Exception in thread "main" org.drools.RuntimeDroolsException: Exception
executing predicate eval( businessData['LOANAMOUNT'] < 5000 )
Caused by: java.lang.ClassCastException: java.lang.Integer
Shouldn't the drools API handle this class cast conversion internally ..? or
how to specify the class casting in rules file
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