You'd probably be better to use a batch command though containing the three commands rather than calling the methods on the ksession directly - it makes for slightly cleaner and more reliable integration from my experience. Thomas From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Wolfgang Laun Sent: 08 July 2011 13:35 To: Rules Users List Subject: Re: [rules-users] FireAllRules and threads On 8 July 2011 13:46, echirulli <echirulli@gmail.com<mailto:echirulli@gmail.com>> wrote: Hi there, I've got a question regarding statefull session and threads. I searched a lot about this topic but I'm still a bit confused so... When a StatefullSession - fireAllRules() returns, can I be sure that the entire rules processing has ended? I red something about the fact that this is true unless rules inference happens, is it correct? No. A fireAllRules() returns after all of "inference" has happened and no more activations are eligible for firing. My simple purpose is to insert a fact into a statefullsession working memory, fire rules, wait until the end of rules processing and than retract that fact. How can i do it? FactHandle fh = kSession.insert( object ); kSession.fireAllRules(); kSession.retract( fh); -W Thank you Errico -- View this message in context: http://drools.46999.n3.nabble.com/FireAllRules-and-threads-tp3151572p3151... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users@lists.jboss.org<mailto:rules-users@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/rules-users ________________________________ ************************************************************************************** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmaster(a)nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 **************************************************************************************