Re: [rules-users] Validation using time driven rule execution

If by "has it's own timer" means that the rules are triggered periodically then yes, this is possible, but it's not complete. The reason for this is that you need a heartbeat of some type to enable the rules to reconsider objects. Without this reconsideration the "negative" tests you mention are not possible. (i.e. "it's time X relative to event Y and event Z has not happened"). You can do this a few ways: 1) Have rules you want reconsidered include the heartbeat object in it's conditions. (Least desirable, IMO) 2) Have some rules that match on the heartbeat and any object you want reconsidered. Downstream rules would fire normally. 3) Externally update the objects from 2 above. There might be a slicker way to do this in fusion without a heartbeat since it uses an internal clock, but specifically with the negative tests I'm not sure what that would be. GreG On May 13, 2010, at 3:54, skasab2s <skasab2s(a)smail.inf.fh-brs.de&gt; wrote: Hello, our medical company plans using drools for validation of blood poisoning. In this situation should be checked, if a patient has blood poisoning (this is the simple part of the problem). The hard part of the problem is, that some actions (let's say A, B, and C) should be executed by the doctor after detecting the blood posisoning in particular order and time frequency (and we want Drools to check, if they have been executed). Drools should then do this: after 10 minutes: check if action A has been executed by the doctor after 15 minutes: check if action B has been executed by the doctor after 20 minutes: check if action C has been executed by the doctor Can we do this with one "fireAllRules" (the Java code for triggering drools has it's own timer and we don't want it to mess our times for executing the actions)? What should we use: drools expert, drools fusion or drools flow, in order to implement the given situation? Can you short describe a solution? Thanks a lot and many regards, skasab2s -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Validation-using-time... 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