Re: [rules-users] "Exists" CE behaviour

Chivotario, >From what I understand, the activation of rules happen as facts are inserted into the working memory; hence it is important for the session to be begun against a knowledge base that has the rule packages loaded before the facts are inserted. -Visu Chivotario Martin <chivotario@gmail .com> To Sent by: rules-users(a)lists.jboss.org rules-users-bounc cc es(a)lists.jboss.or g Subject [rules-users] "Exists" CE behaviour 13/07/2009 14:11 Please respond to Rules Users List <rules-users@list s.jboss.org> Hi , I'm trying to use the Exists keyword within my rules with the following snippet : // Create a session KnowledgeBaseConfiguration config = KnowledgeBaseFactory.newKnowledgeBaseConfiguration(); ((RuleBaseConfiguration)config).setRuleBaseUpdateHandler( null ); * KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(config); StatefulKnowledgeSession session = kbase.newStatefulKnowledgeSession(); // Add some objects for (int i=0; i<5; i++) { } // Add a DRL to the kbase KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kbuilder.add( ResourceFactory.newClassPathResource( "test/existsTest.drl" ), ResourceType.DRL); kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() ); // Fire rules int fireCount = session.fireAllRules(); existsTest.drl : rule "existsTest" ( Foo() ) ); (2) end When launched , the rule is not fired (no messages , fireCount 0), but it is when changing exists with a double not condition (2). If the working memory is populated after adding the rules file, the exists CE works as expected. * I've used no RuleBaseUpdateHandler preventing automatic activations to be executed so fireAllRules can be used to get the fireCount, but commenting this line out doesn't change the results. Probably i'm doing something wrong so a little help would be very appreciated. Regards, Manuel. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users