Isn't this a simple coding error:        releaseDate<= ( (ageInDays(current.releaseDate)<100) ) as is compares a Date with a boolean? I think that the constraint should just be    eval( ageInDays(current.releaseDate) < 100 ) -W On 20 June 2011 07:38, jarno niemelä <jargon(a)iki.fi&gt; wrote: > > Hello. > > I am trying to set up guvnor environment for business users, and I am > having a bit of trouble in getting functions to work. > > What I am trying to do is to make a function that would calculate age > of product in days as comparison between release date and current > date. > > I have following POJO: > > public class Product { > >        private String name; > >        private Date releaseDate; > >        public Date getReleaseDate() { >                return releaseDate; >        } > >        public void setReleaseDate(Date releaseDate) { >                this.releaseDate = releaseDate; >        } > } > > My function: > > import java.util.Date; > import java.util.Calendar; > > function int ageInDays(Date beginDate) { > > Date today = Calendar.getInstance().getTime(); > long age=today.getTime()-beginDate.getTime(); > return (int)((age/1000)/60/60/24); > } > > My rule: > 1.      |       rule "test2" > 2.      |           dialect "mvel" > 3.      |           when > 4.      |               current : Product( supported != "supported" , > releaseDate > <= ( (ageInDays(current.releaseDate)<100) ) ) > 5.      |           then > 6.      |               current.setSupported( "supported" ); > 7.      |               update( current ); > 8.      |       end > > I am getting error when running test: > > Exception executing ReturnValue constraint > org.drools.rule.ReturnValueRestriction@4219ae2e : > java.lang.IllegalArgumentException: Unable to convert class > java.lang.Boolean to a Date. > > What I am doing wrong here? > > Alternative solution would be to create getAge() function in my POJO, > but are POJOs supposed to have executable code or are they supposed to > be used only for storing fact values? > > Jarno > _______________________________________________ > 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