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 -- View this message in context: http://www.nabble.com/Class-Casting-in-a-Collection-data-tp24031803p24031... Sent from the drools - user mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

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(a)wipro.com&gt; > >> >> 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 >> >> >> >> >> >> -- >> View this message in context: >> http://www.nabble.com/Class-Casting-in-a-Collection-data-tp24031803p24031... >> Sent from the drools - user mailing list archive at Nabble.com. >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> > > > > -- > Edson Tirelli > JBoss Drools Core Development > JBoss, a division of Red Hat @ www.jboss.com > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- View this message in context: http://www.nabble.com/Class-Casting-in-a-Collection-data-tp24031803p24046... Sent from the drools - user mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users