Thank You guys. I worked it out. I have the contracts (main and related) encapsulated within a parent object. So, once I did the assertion I checked the "pattern matched" fact agains the parent object.
Thank You again. This ML is always usefull as usual! I really hope to be usefull as well to the few I can answer back. Bye Massi On Jan 7, 2008 9:27 PM, Mark Proctor <[EMAIL PROTECTED]> wrote: > rules are just querries over data, like a database view. > Ask yourself this. If you asserted those two objects, A1 and A2, into a > database and you had two views V1 and V2. How would you make V1 select A1 > and V2 select A2? > > When you have the answer for that, it'll apply to Drools too. > > Mark > Massi Gmail wrote: > > ok > > But i think I do not need to differentiate them. > > I try to explain it better. > > I have got a set of "Contract" class Facts. All of them inserted into the > working memory. > > But Just one of them is the "main contract", all the others all "related > contracts". > > So , when i write a rule I need to distinguish between a "main contract" > (which is unique along the session) > and a "related contract". > > I should write rules like the followings: > > > *when* > * $mc: Contract() from maincontract* > *then* > * #rule fired over "the" main contract* > *end* > ** > *when* > * $rc: Contract() from relatedcontract* > *then* > * #rule fired over "a" related contract* > *end* > > I think the only solution to do that is to make "maincontract" and > "relatedcontracr" globals. > But, if I make them globals, then the rule engine will not be notified > about their changes and > I do want it to be notified about it. > > Should I make them "globals" and "facts" as well? > Can globals be inserted into the WM as well? Is it too horrible? :D > > Thank u anyway. > > Massi > > > ----- Original Message ----- > *From:* Edson Tirelli <[EMAIL PROTECTED]> > *To:* Rules Users List <[email protected]> > *Sent:* Saturday, January 05, 2008 12:00 PM > *Subject:* Re: [rules-users] Checking fact "id" > > > What attribute differentiates A1 from A2? > Such scenarios usually are solved by an additional constraint... > > []s > Edson > > 2008/1/4, Massi Gmail < [EMAIL PROTECTED]>: > > > > > > Hi guys, > > > > Now I am strugglin' with "fact id checking" or whatever we can call > > it.... :D > > > > Let's take into account the followong scenario: > > > > I have class A (it's just a name) javabeans to be inserted into the WM. > > > > I define two objects of class A: A1 and A2. > > > > Somewhere I do "insert(A1)" and "insert(A2)" ( let's say I do it in the > > same package of R1 and R2..see below...) > > > > Then I define two different rules R1 and R2 that reason over class "A" > > facts (let's say R1 and R2 are in the same package) . > > > > The point is.... I want R1 to fire only on A1 and R2 only on A2. > > > > Is that possible in drools? Is there a sort of "fact id" I can reason > > over? > > > > I do not think globals will be of any help, cause in the guide i have > > read that globals should never be used within LHS. > > We should never reason over globals. > > > > Let me know. > > > > Massi > > > > > > > > _______________________________________________ > > rules-users mailing list > > [email protected] > > https://lists.jboss.org/mailman/listinfo/rules-users > > > > > > > -- > Edson Tirelli > JBoss Drools Core Development > Office: +55 11 3529-6000 > Mobile: +55 11 9287-5646 > JBoss, a division of Red Hat @ www.jboss.com > > ------------------------------ > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users > > ------------------------------ > > _______________________________________________ > rules-users mailing [EMAIL > PROTECTED]://lists.jboss.org/mailman/listinfo/rules-users > > > > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users > >
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