It seems you are using dialect "mvel"? This doesn't work in 5.2.0, 5.3.0 and 5.4.0. (I haven't tried 5.5)
Use dialect java. -W On 30/11/2012, Martin Minka <[email protected]> wrote: > I was using ArrayList before and I don't think this is the real problem. > collect() will return object compatible with List interface so it is valid > to use size() and get() methods on $removeUs. > I have helper method myhelper.log() with accepts any object and * > myhelper.log($removeUs.get(i))* works for me, unfortunately > *retract($removeUs.get(i)) > *doesn't work with error: > > Error: unable to resolve method using strict-mode: > org.drools.spi.KnowledgeHelper.drools()] [Near : {... > drools.retract($removeUs ....}] > > It looks like it is not even compiled. > > 2012/11/30 Wolfgang Laun <[email protected]> > >> On 30/11/2012, Martin Minka <[email protected]> wrote: >> > Thank you for the tip. What solution would you suggest to solve my >> problem >> > ? >> >> Look into the javadoc of java.util to find any class implementing List >> :-) >> -W >> >> > >> > Martin >> > >> > >> > 2012/11/30 Wolfgang Laun <[email protected]> >> > >> >> You cannot use an interfact (List) to instantiate an object, which >> >> is happening due to the collect. >> >> --W >> >> >> >> On 30/11/2012, Martin Minka <[email protected]> wrote: >> >> > I want to keep only 1 fact with id=="aaaa". But this is not working: >> >> > >> >> > rule "leave only one" >> >> > when >> >> > $removeUs : java.util.List(size>1) >> >> > from collect(Fact(id=="aaaa") >> >> > then >> >> > size = $removeUs.size(); >> >> > for (int i=1; i < size; i++) { >> >> > retract($removeUs.get(i)); >> >> > } >> >> > end >> >> > >> >> _______________________________________________ >> >> rules-users mailing list >> >> [email protected] >> >> https://lists.jboss.org/mailman/listinfo/rules-users >> >> >> > >> _______________________________________________ >> rules-users mailing list >> [email protected] >> https://lists.jboss.org/mailman/listinfo/rules-users >> > _______________________________________________ rules-users mailing list [email protected] https://lists.jboss.org/mailman/listinfo/rules-users
