The system I want to create must invoke the receptor's call(x) with the objects from the pile that correspond the receptors interface.
I have a pile of objects of the classes; PinkTriangle, GreenSylinder and RedSquare, implementing Interfaces Triangle, Square and Circle, and a set of receptors; TriangleHole, SquareHole og SircleHole, who's call(x) functions accept Triangle, Square or Circle interfaces (or children).
Secondary requirement - Other restrictions may be applied and checked before execution, eg. a simple rule language in the Circle call's functions annotation, describing max X and Y size.
Detailed graphical illustration of how the System and intended behaviour:
Is there any Java library that facilitates this kind of behaviour? Preferrably as simple as possible.
PS, Guess what the system Demo will look like! :)