Re: [rules-users] keep only one, retract all other

On 30/11/2012, Martin Minka <martin.minka(a)gmail.com&gt; 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 <wolfgang.laun(a)gmail.com&gt; > >> You cannot use an interfact (List) to instantiate an object, which >> is happening due to the collect. >> --W >> >> On 30/11/2012, Martin Minka <martin.minka(a)gmail.com&gt; 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 >> 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