What (I think) you are trying to do is not possible. But I wouldn't say that it cannot be done using DSL. What sort of collect/accumulate do you need? -W On 18/02/2013, David R Robison <drrobison(a)openroadsconsulting.com&gt; wrote: > I am developing rules using DSL so, from what I understand, I cannot use > collect and accumulate in some of my DSL definitions (especially when > using clauses that begin with a hyphen). So what I want to do is to test > the count of a pattern binding variable, such as > > when > $sensors : Sensor() > accumulate($sensor; $count : count(1); $count > 3) > then > ... > > Is something like this possible? I cannot seem to make it work. > David > > -- > > David R Robison > Open Roads Consulting, Inc. > 103 Watson Road, Chesapeake, VA 23320 > phone: (757) 546-3401 > e-mail: drrobison(a)openroadsconsulting.com > web: http://openroadsconsulting.com > blog: http://therobe.blogspot.com > book: > http://www.xulonpress.com/bookstore/bookdetail.php?PB_ISBN=9781597816526 > > > > This email communication (including any attachments) may contain > confidential and/or privileged material intended solely for the individual > or entity to which it is addressed. > If you are not the intended recipient, please delete this email > immediately. > > > _______________________________________________ > 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

There's a minor problem with the syntax On 19/02/2013, Stephen Masters <stephen.masters(a)me.com&gt; wrote: > Assuming that you don't have an infinite variety of accumulations you're > trying to use, something I have done previously is to create DRL technical > rule to generate accumulated values, which the DSL then uses as > constraints. > > i.e. > > rule "Generate sensor counts" > when > $sensor : Sensor() > accumulate($sensor; $count:count(1); $count >3) // need a Pattern up front, not a binding variable accumulate( Sensor(); $count:count(1); $count >3) > then > insert(new SensorCount($count)); // it might be necessary to write insert( new SensorCount( $count.intValue() ) ); What was the original problem? ;-) -W _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users