[rules-users] fireAllRules() doesn't return back
Hi,I'm using drools-5.3.0.Beta1. I've following rule definition: import java.util.*; declare Student name : String @key subjectGradeMap : HashMap end rule Subject grade points dialect mvel when $u : Student() then $u.subjectGradeMap[CompSc] += 100; System.out.println(Marks added); end While executing RHS of above rule, fireAllRules() doesn't return, it hangs.Please help.Thanks,Neel ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] fireAllRules() doesn't return back
It hangs? Or the rule get executed once and again? I don't see anything wrong with your rule. Are you sure you are not doing any update() od modify() inside your rule? Can you share with us how are you creating and interacting with the knowledge base? Best Regards, Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com 2011/8/28 Neel neelesh...@yahoo.co.in Hi, I'm using drools-5.3.0.Beta1. I've following rule definition: import java.util.*; declare Student name : String @key subjectGradeMap : HashMap end rule Subject grade points dialect mvel when $u : Student() then $u.subjectGradeMap[CompSc] += 100; System.out.println(Marks added); end While executing RHS of above rule, fireAllRules() doesn't return, it hangs. Please help. Thanks, Neel ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] fireAllRules() doesn't return back
You are adding 100 to a non-existing Map entry. Doing this in Java code like e.g. HashMapString,Integer m = $u.getSubjectGradeMap(); m.put( CompSc, m.get( CompSc ) + 100 ); would have thrown a NullPointerException, and you would have seen the problem. MVEL, with its balmy-barmy way of hiding the realities of programming from you, sinks you in an infinite loop... Verified with current master, and I won't create a JIRA for this one either, as moticated previously. -W 2011/8/28 Neel neelesh...@yahoo.co.in Hi, I'm using drools-5.3.0.Beta1. I've following rule definition: import java.util.*; declare Student name : String @key subjectGradeMap : HashMap end rule Subject grade points dialect mvel when $u : Student() then $u.subjectGradeMap[CompSc] += 100; System.out.println(Marks added); end While executing RHS of above rule, fireAllRules() doesn't return, it hangs. Please help. Thanks, Neel ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
