Do you mean: rule "There is at least one set of marbles" when exists( Marble( color == "red" ) and Marble( color == "blue" ) and Marble( color == "yellow" ) ) then // there is at least one set of marbles end []s Edson 2008/5/27 Jayne <jayne2520(a)gmail.com&gt;: > Hi All, > > Newbie terminology question: what do you call it when you want to assert > the state of several objects in working memory? > > Example: your working memory is full of marble objects. I know how to test > each marble for color, but if there is a red marble, a blue marble and a > yellow marble then I have enough marbles for a set. How can test the state > of the working memory? Is this possible with Drools? > > Thanks, > Jayne2520 > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > 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 rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users