Re: [rules-users] MVEL expression

Another question ;), Can I perform a cast in MVEL? eg. Patient((ShortSedation) sedation.sedation24 == *false*)

Thx Op 17-mrt-09, om 19:27 heeft Edson Tirelli het volgende geschreven: > > Although Drools makes extensive usage of MVEL, it is always > embedded in the DRL language. So, it is Drools that defines that a > field constraint is always a field accessor in the left with one or > more restrictions in the right. > > We need to find a way to make the Drools x MVEL relationship more > clear because it is not the first time this slight confusion is made. > > Anyway, docs are being updated, but take a look at the Pattern > documentation (item 7.8.2.1): > > https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t... > > []s > Edson > > > > 2009/3/17 Femke De Backere <femmyke(a)gmail.com <mailto:femmyke@gmail.com>> > > Thx! > > Do you know where I could find a tutorial of MVEL in Drools, > because I looked at some MVEL tutorials yesterday and I didn't > find the solution... > > 2009/3/17 Edson Tirelli <tirelli(a)post.com <mailto:tirelli@post.com>> > > > Left side of a constraint should always be a field name... > no expression allowed. Either move the expression to the > right side or use eval. > > Patient( sedation.ultiva > ( 0.1 - 0.02 ) ) > > Or even better: > > Patient(sedation.ultiva > 0.08) > > []s > Edson > > 2009/3/16 Femke De Backere <femmyke(a)gmail.com > <mailto:femmyke@gmail.com>> > > Hi, > > The following expression keeps returning the > error [112,32]: [ERR 103] Line 112:32 no viable > alternative at input '+' in rule > "RuleFlow-Split-masterproef.ruleflows.shortsedation-18-22" > in pattern Patient: > Patient(sedation.ultiva+0.02 > 0.1) > with sedation.ultiva returning a double > What am I doing wrong? > Thx, > Femke > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > <mailto:rules-users@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 > <http://www.jboss.com> > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org> > https://lists.jboss.org/mailman/listinfo/rules-users > > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org <mailto:rules-users@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 <http://www.jboss.com> > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org <mailto:rules-users@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