Re: [rules-dev] A dazzling feature - not in Drools!

Wolfgang, Not sure I understand what you mean, but Drools supports dynamic salience: rule "fire in rank order 1,2,..." salience( -$rank ) when Element( $rank : rank,... ) ... then ... end Edson 2010/8/26 Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; Just FYI, but who knows ;-) > > Our proprietary vintage RBS has a feature is (admittedly) rarely used > but could come in handy, every now and then. > > Given this class > > class Element { > int rank; // rank > 0 > } > > and to fire a rule in ascending rank order, you can write (using > modified Drools syntax) > > rule "fire in rank order 1,2,..." > when > Element( $rank : rank,... ) > // ... > salience -$rank ### <= > then > // ... > end > > The dynamically set salience does all the work. (Of course, you can > achieve the same order > in Drools easily enough.) > > This is possible since salience is a value that must be carried over > into the activation. > There is at least one other rule attribute that shares this property, > but I'm not sure > whether anything useful can be done with dynamic agenda groups. > > Cheers > -W > _______________________________________________ > rules-dev mailing list > rules-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-dev > -- Edson Tirelli JBoss Drools Core Development JBoss by Red Hat @ www.jboss.com _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev