Hi, maybe I misunderstood you, but what about a set collection. Just implementd equals method of A properly and use accumulate function collectList when accumulate( C( $a:b.a ) , $uniqueASet:collectSet($a) ) then do whatever you want
Hope that helped. Jan Dne 10.5.2014 11:36, Ephemeris Lappis napsal(a): > Hello. > > Perhaps that my question has few sense or none... > > I've an object graph with say A, B and C. > A has one or many B, that has one or many C. > > I can navigate through the relations between my objects in both direction. > For example, I can do fo any instance of C : c.b.a (or c.getB().getA())... > > My initial input facts or only C objects, and I'd like to identify all the > distinct A instances, and insert them into my working memory, as they > participate to global rules. > > I've been looking for some forms of accumulate or collect, but I've not > found a correct way to do it. > > Some help ? > > Thanks > > Regards. > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Any-form-of-groub-by-or-distinct-in-accumulate-collect-tp4029501.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users