[rules-users] Class Casting in a Collection data
VinuJay
vinod.jayendra at wipro.com
Mon Jun 15 22:55:01 EDT 2009
Hi Edson,
Thanks for the reply.
I am using Drools 4.0.7 and mvel 1.3.1-java1.4.jar
Edson Tirelli-3 wrote:
>
> What versions of Drools and MVEL are you using?
>
> []s
> Edson
>
> 2009/6/15 VinuJay <vinod.jayendra at wipro.com>
>
>>
>> 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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>>
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>>
>
>
>
> --
> Edson Tirelli
> JBoss Drools Core Development
> JBoss, a division of Red Hat @ www.jboss.com
>
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