Re: [rules-users] How to handle generics in Drools?

** Java's generics are implemented by erasure, which implies that there no information available at runtime that a instance of a List is of a certain generic type, for example Boost. So I don't think this is possible. Note that some things do work in erasure IIRC, like the generic type of a defined field in a class is available at runtime: public class Foo { private List<Bar> list; } but that's not useful in this case :) Op 17-10-11 11:30, Martin A schreef: Hello, In my rules file I'd like to set something like this: rule "mayThrowDice" when $user : User($gp : gameplay) $gameplay(this == $gp) then exists List<Boost>() { ..... some business logic } end But it looks like there is no generics support. How can I make sure there is a List of type Boost inserted into the session? Thank you, Martin _______________________________________________ rules-users mailing listrules-users@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-users -- With kind regards, Geoffrey De Smet _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users