Re: [rules-users] Event streams

So would I simply call fireUntilHalt() in a loop in a separate thread? Is Halt called by the engine when all rules have fired, or so I need to also call that explicitly? Thanks, Chris _____ From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Greg Barton Sent: Friday, September 25, 2009 10:30 AM To: Rules Users List Subject: Re: [rules-users] Event streams Yes to both. However to the first part (rules firing "automatically") you need to use fireUntilHalt() instead of fireAllRules(). fireUntilHalt blocks (until halt is called) so you need to invoke it in a separate Thread. Then from another thread you can insert events into the entry points. For the second item (long lived event) you must use an @expires tag in your object declaration and be running in STREAM mode. _____ From: Chris Richmond <crichmond(a)referentia.com&gt; To: Rules Users List <rules-users(a)lists.jboss.org&gt; Sent: Friday, September 25, 2009 3:17:52 PM Subject: [rules-users] Event streams It is my understanding that an event will be detected as soon as it is inserted into a stream.meaning that I don't have to explicitly call fireRules in order to evaluate events, but them will be evaluated as soon as I insert them into a stream, so a rule like the one below would fire as soon as I perform datastream.insert(myDataStreamObject) without having to explicitly fire rules? Is that behavior correct/intended? Declare MyDataStreamObject @role(event) End //rule "detect a stream data object" When MyDataStreamObject() from entry point "DATA" Then System.err.println("data object inserted"); end Also, could I generate another event(long lived.say it lives 1 minute) so that if the above event detector fired and some condition was met, I could have it fire some event within the rule engine? Something like the following: //rule "detect a stream data object" When MyDataStreamObject($val: fieldValue < 20) from entry point "DATA" Then //I want to raise an event purely from this rule that will live for one minute or so, that I can use to further refine this rule, to make sure this rule makes //sure that the MyDataStreamObject event "NOT INCLUDED" within the generated longer lived event lifetime. Efffectively preventing me from firing this if one of my //generated events is still living end Thanks, Chris