Oh yes, indeed. -W
On 14/03/2012, rou...@mm.di.uoa.gr <rou...@mm.di.uoa.gr> wrote: > Wolfgang Laun wrote: >> accumulate is not the way to go. >> >> If you need accumlated counts for certain facts, by type or, within >> some type, by attribute value, then you should set up secondary facts >> and maintain these during the element insertion process or by separate >> (static) rules. >> >> class ProductCounter { >> String id; >> int count; } >> >> rule count >> when >> $pp: PortfolioProduct($pid: productId, prodCounted == false ) >> $pc: ProductCounter( id == $pid ) >> then >> modify( $pc ){ setCount( $pc.getCount() + 1 ) } >> end > > Shouldn't "then" be > > then > modify( $pc ){ setCount( $pc.getCount() + 1 ) } > modify ($pp ){ setProdCounted( true ) } > end > > I'm only asking to validate my understanding of the situation. > > -Stathis > >> >> And now you can generate the rules accessing the completed counts. >> -W >> >> >> >> >> >> On 14/03/2012, fx242 <dro...@fx242.com> wrote: >>> Hi, >>> >>> These rules are all auto-generated every day, and I don't control what >>> is >>> going into them, so this kind of optimizations won't work for me. The >>> basic >>> problem here, is that I have tons of rules that count facts >>> (PortfolioProducts) and use the result as rule conditions. >>> Some conditions could look like this: count(PortfolioProduct(A)) + >>> count(PortfolioProduct(B)) <= ( count(PortfolioProduct(C)) - >>> count(PortfolioProduct(D)) ) - count(PortfolioProduct(E)) >>> and so on... >>> >>> All rules look like the rule I've posted: I first calculate all relevant >>> fact counts to be used by the rule (accumulates), and then perform the >>> logic/arithmetic evaluation using evals(). Some rules end up having 15 >>> accumulates and 2 evals as conditions... >>> My question is if using accumulate and eval() is the only choice I have >>> to >>> write these kind of rules. >>> >>> Regards, >>> Tiago Lopes >>> >>> -- >>> View this message in context: >>> http://drools.46999.n3.nabble.com/drools-arithmetics-without-eval-tp3823232p3824958.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 >> > > > _______________________________________________ > 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