Re: [rules-users] BRMS: Evaluation: JBoss Rules 3.2?

Thanks Mark, I think I've got the hang of AgendaGroups!! Presumably if I sub-class DefaultAgenda and override setFocus(AgendaGroup ag) and getNextfocus() I can implement my own flow-like mechanism instead of the standard stack. I'd need to add a way in which to override the DefaultAgenda created in ReteooWorkingMemory's constructor too but this again should be a simple sub-class (together with a subclass of ReteooRulebase with override of newWorkingMemory and a new RuleBaseFactory to allow me to construct these new objects). Anything major I've missed - my experience with rules engines now totals a couple of weeks and it's possible I'm missing the point!! With kind regards, Mike ------------------------------------------------------------------------ *From:* rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] *On Behalf Of *Mark Proctor *Sent:* 22 January 2007 16:33 *To:* Rules Users List *Subject:* Re: [rules-users] BRMS: Evaluation: JBoss Rules 3.2? Anstis, We don't have ruleflow, but we do have AgendaGroups which can provide a form of rule flow, just that its actually stack based. I'm working on a more general ruleflow idea at the moment, it may make it into the end of Q1 release, but its not defnite yet. Normally you cache the rulebase in a singleton and then just creating working memory instances as and when you need to - creating a working memory is light. The guided gui builder is for 3.2, it's web only based on GWT, I believe that it will also do DSLs (Mic will have to confirm that). Mark Anstis, Michael (M.) wrote: > > Hi, > > I'm evaluating BRMS's for a new project at work. > > JBoss Rules today swung into pole position however I am unclear > on a number of features. I wonder whether this user-group can help? > > I list a number of aspects I "think" are currently missing in > JBoss Rules together with my thoughts: If anybody can clarify the > position, provide alternatives or help push JBoss Rules I'd be > pleased to hear! > > * We require ruleflow (where rules run sequentially; like > "identify all machines X" then "calculate prices" - not > perhaps a good illustration as this could be written as one > rule "calculate all prices using machine XXX"!!!). Ideally > "dynamic" ruleflow is required too - where the next rule in > a sequence is determined by the outcome of a preceding rule > (I have seen dynamic achieved with "trigger" Facts asserted > as the RHS of rules however our "Business Users" cannot be > expected to author rules following this design pattern. I > have also seen static implemented with salience). Is > ruleflow (static or dynamic) part of 3.2 - otherwise we'll > need to categorise rules having different types fired > throughout a "coded" process in Java. > * A J2EE runtime to provide scalability of the RETE engine. > We need to have the engine being shared across sessions on > a web-server. What experiences have others had? Do you > simply provide a working memory instance per session (how > does this scale horizontally?). I also read that an > Application Server runtime would be part of 3.2, is this true? > * A rule authoring environment for end-users. I read on Mark > Proctor's blogg that this is in development but is it set > for inclusion in 3.2 and does it handle DSL too; otherwise > we'd have to write out own? > > With kind regards, > > Michael Anstis > ------------------------------------------- > *Next Generation Estimating System* > ( Trafford House (Int) 8 718 2239 > ( Trafford House (Ext) +44 (0)1268 702239 > * <_mailto:manstis1@ford.com_> > > > ------------------------------------------------------------------------ > > _______________________________________________ > 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