Re: [rules-users] How to limit results from a collect statement

There is no supported way to do this. You could use an inline-eval against a global, but that is very clunkey. However it does seem like a good feature idea for a future release, open a jira and I'll look into getting it included. Mark pentarious wrote: > Does anyone know a method to limit the number of results from a collect > statement? I was just wondering how to do something like this: > $myList : List() from collect( MyObject(myField == "something") ) limit 3 > //it should put in $myList just the first 3 objects retrieved > I'm quite sure there is nothing in Drools which can natively support > something like that. So, how to do that, if needed? I tried this, but it > seems not to be working (I can't understand why, though): > $myList : List() from collect( MyObject(myField == "something") ) > $myObject : MyObject() from $myList > eval( $myList.indexOf($myObject) < 3 ) > Indeed, it doesn't work because the link beetween $myList and $myObject > seems to be released during any execution of the rule (In fact > $myList.contains($myObject) returns false! Again, I can't understand > why...) > > Any advice would be really appreciated! > > Regards, > > CG > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users