You can use a collect statement to get all of the Job objects. $list : ArrayList() from collect ( Job() ) alternatively if all that your service method call is doing is comparing the values of a field in a list of Job objects, there are ways to do that without the eval when $shortest : Job ( $min : min) not Job(min < $min) then go go go! Hope this helps! Steve Ronderos From: kothvandir kothvandir <kothvandir(a)gmail.com&gt; To: rules-users(a)lists.jboss.org Date: 08/31/2009 01:35 PM Subject: [rules-users] Calculating minimal value for a group of facts Sent by: rules-users-bounces(a)lists.jboss.org ------------------------------ Hi, I need to calculate the min time for a set of "jobs" inserted in working mermory to know wich job is going to be finished first. Is there any way to obtain within a rule the current facts of some type to pass then to a function/method? somethin like this: Another idea to acomplish this? gobal MyService myservice rule "cmdCheckTime" ruleflow-group "comprobarExistencias" when Job(time = eval(myService.getMinTime( <jobs in working memory >)) then go, go, go... end Thank you_______________________________________________ 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