Re: [rules-users] doubt regarding FORALL and contains operator...

Hi Edson, Thanks for a quick reply. Regarding the second second point I will open an issue in JIRA. Regarding the first one is that a bug as well? since I haven't assert any of the vehicle instances I suppose the rule shouldn't fire right? But the rule is firing always. Thanks, sudhir. On Tue, Feb 3, 2009 at 6:49 PM, Edson Tirelli <tirelli(a)post.com&gt; wrote: > > Regarding 1, it is the expected behavior, since there is no vehicle in > the wm whose model is not "bmw". > > Regarding 2, probably a bug. Can you please open a JIRA with a test > case? > > []s > Edson > > 2009/2/3 Sudhir M <sudhir.cse(a)gmail.com&gt; > >> Hi ALL, >> We are using drools 4.0.7 for one of our projects. We encountered some >> issues which I thought are strange. >> >> 1. When using FORALL on an entity for which we haven't asserted any of >> the instances in the working memory the rule always fires. I thought this >> rule should be evaluted to true only if all the asserted instances satisfy >> the condition and if we don't insert any of the instances in the working >> memory it should no fire the rule. Is this the expected behaviour or am I >> wrong? >> >> ex: rule "rule1" >> when >> forall ( >> Vehicle( model == "bmw" ) >> ) >> >> then >> System.out.println("in forall");end >> >> 2. When using 'contains' operator on array or collection of strings its >> working fine. But when we use it for an array of primitive type double it >> gives a classcastexception . Is auto boxing not supported? May be this is >> fine as it mentioned in the documentation that it works only on Objects. I >> tried using the array of Double objects, here it doesn't throw an excpetion >> but the rule wasn't firing. The behaviour was same even if I use a >> collection of Double objects. Is this a bug or am I missing something? >> >> ex: >> using Array >> >> rule "OrderArray" >> when >> >> Order(valueArray contains 0) >> >> then >> System.out.println("OrderArray"); >> end. >> >> using Collection >> >> >> rule "OrderList" >> when >> >> Order(valueList contains 0) >> >> then >> System.out.println("OrderList"); >> end. >> >> May be for collections I can write it as below >> >> >> rule "OrderList" >> when >> >> $order : Order( $val:valueList) >> Double(doubleValue ==0) from $val >> >> then >> System.out.println("OrderList"); >> end. but this working but not intuitive as these rules were maintained >> later by a business user it will be easy for him if we contains and also if >> we can directly use array instead of collections it would be a great as >> current BOM uses arrays everywhere. >> >> Thanks, >> sudhir. >> >> >> >> >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> >> > > > -- > Edson Tirelli > JBoss Drools Core Development > 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 > > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users