Re: [rules-users] Bug and/or confusion with collect and new rules

I have modified my application to allow adding/removing/updating rules during runtime. However, when I add a new rule to the rulebase, I don't get the behavior I expect. First, as soon as I call RuleBase.addPackage(), the new rules fire (the RHS code runs). Shouldn't that happen only when I call fireAllRules()? Second, newly added collect() rules don't collect already asserted objects. New non-collect rules can see the objects just fine. Attached is a testcase, and below is the output it produces. Am I doing something wrong, or is this a bug? I'm running Drools 4.0.3 on JDK 1.5.0.13. Start RuleBase created Adding rules about 'tom': package rules; import java.util.ArrayList; import test.Tester.Record; import test.Tester; rule "Collect tom" when $list : ArrayList(size > 0) from collect( Record(field1 == "tom") ) then Tester.show($list, "Collect tom"); end rule "Non collect tom" when $rec : Record( field1 == "tom" ) then System.out.println("Find 'tom' " + $rec.dump()); end inserting record 1:"tom", inserting record 2:"fred", inserting record 3:"harry", inserting record 4:"fred", inserting record 5:"ed", inserting record 6:"tom", inserting record 7:"sreeni", inserting record 8:"jill", inserting record 9:"ralph", inserting record 10:"tom", fireAllRules() Find 'tom' 10:"tom", 'Collect tom' collected 3 records => 1:"tom", 6:"tom", 10:"tom", Find 'tom' 6:"tom", Find 'tom' 1:"tom", adding rules about 'fred': package morerules; import java.util.ArrayList; import test.Tester.Record; import test.Tester; rule "Collect fred" when $list : ArrayList(size > 0) from collect( Record(field1 == "fred") ) then Tester.show($list, "Collect fred"); end rule "Non collect fred" when $rec : Record( field1 == "fred" ) then System.out.println("Find 'fred' " + $rec.dump()); end ==> Why do the new rules fire when added? Find 'fred' 4:"fred", Find 'fred' 2:"fred", 'Collect fred' collected 0 records => ==> Why doesn't the collect rule collect? The non-collect rule works. fireAllRules() Changing record 3 to 'fred' fireAllRules() Find 'fred' 3:"fred", 'Collect fred' collected 1 records => 3:"fred", ==> Why does the collect rule not see the other two 'fred' records? -- Dirk Bergstrom dirk(a)juniper.net _____________________________________________ Juniper Networks Inc., Computer Geek Tel: 408.745.3182 Fax: 408.745.8905 _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users