Define FraudResultsDTO as a global. That way, you don't have to specify it in the WHEN part merely for assigning a variable to it ----- Original Message ----- From: Jamie [jshaw(a)llbean.com] Sent: 10/26/2011 09:24 AM MST To: rules-users(a)lists.jboss.org Subject: [rules-users] Preventing re-evaluation on modification of 'output' fact We're building a fraud detection application that uses rules to analyze orders and the buyers and recipients on those orders. As rules fire, they modify an 'output' fact, which is an object whose only intent is to record the results as rules fire. It's not used in the LHS of any rules other than to get a handle to it, e.g.: rule "Rule 001 - Operator Flagged" enabled (FraudRuleEvaluationHelper.isRuleEnabled("Rule 001 - Operator Flagged")) ruleflow-group "orderAnalysis" lock-on-active when $order: OrderFact(operatorFlagged==true) $results: FraudResultsDTO() then modify($results) { addOrderSuspectReason("O") }; FraudRuleConsequenceHelper.logRuleFiring($order.getOrderId(), "001"); end We're finding that as the number of facts increases, the processing team increases dramatically and I'm wondering if modifying the output fact the way we do causes the rules to get re-evaluated to see if any activations should be created or cancelled. Would removing the modify block help anything? Should we be thinking about this in some other way? -- View this message in context: http://drools.46999.n3.nabble.com/Preventing-re-evaluation-on-modificatio... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ----------------------------------------- The information contained in this communication (including any attachments hereto) is confidential and is intended solely for the personal and confidential use of the individual or entity to whom it is addressed. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this communication in error and that any review, dissemination, copying, or unauthorized use of this information, or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message. Thank you