Here is how you can achieve this: rule "Init" salience 10 when exists FactObject(condition != true) then insertLogical(new Stop()) end rule "Your Business rule" when not Stop() //some other conditions that you want to check then //action end -----Original Message----- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of ganesh.p Sent: Tuesday, September 02, 2008 7:32 PM To: rules-users(a)lists.jboss.org Subject: [rules-users] Check the condition is TRUE during a period of time Hi All, I want to write a rule which should fire only when the condition is true for all the facts asserted during a period of time. E.g.: rule "rule1" duration 30000 when TxInfo(txTime > 100) // for 30 seconds then //some action end I tried using "duration" attribute, but once the rule is activated, it fires rule when the last fact match the condition during the 30 seconds duration. It looks like, once the first fact matches the condition then it starts a 30 seconds timer, once the 30 seconds complete if the last fact match the condition then it fires the rule. It ignores the intermediate facts during the 30 seconds duration. Suppose the facts(TxInfo.txTime) are 20, 40, 105[Activation], 115, 120, 4, 110[Last fact matches the condition, so fires the rule] 20, 40, 105[Activation], 115, 120, 110, 4[Last fact doesn't match the condition, so doesn't fire the rule] I want the rule shouldn't fire in the both the above cases. How can we check the condition is TRUE for 30 seconds duration for all the facts asserted during this time? Thanks in advance, Ganesh -- View this message in context: http://www.nabble.com/Check-the-condition-is-TRUE-during-a-period-of-tim e-tp19270862p19270862.html Sent from the drools - user mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -------------------------------------------------------- NOTICE: If received in error, please destroy and notify sender. Sender does not intend to waive confidentiality or privilege. Use of this email is prohibited when received in error.