Hi there, I want to work with declared facts, inside drl file, but when i set drools.agent.newInstance property to false, it seems that drools won't work with this specific fact. My code stops working when i put this two lines, KnowledgeAgentConfiguration aconf = KnowledgeAgentFactory.newKnowledgeAgentConfiguration(); aconf.setProperty("drools.agent.newInstance", "false"); And it works fine when i remove these lines. So, I've read that this property is related to new instances of KnowledgeBase when resources changes... c&p from: http://grepcode.com/file/repository.jboss.org/maven2/org.drools/ drools-api/5.0.0.M4/org/drools/agent/KnowledgeAgentFactory.java *aconf.setProperty( "drools.agent.newInstance", "true" ); // resource changes results in a new instance of the KnowledgeBase being built, // this cannot currently be set to false for incremental building* Hence, why is this property changing the behaviour of the rules? (See this thread too, http://drools.46999.n3.nabble.com/rules-users-Truth-maintenance-and-RHS-v... ) _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users