I'm trying to inject things with Google Guice 2.0 and I have the following structure: FooAction implements Action BarAction implements Action I then have an ActionLibrary with the following constructor: ActionLibrary (List theActions) When I request an instance of ActionLibrary from Guice, I would like Guice to identify both of the registered Action classes (FooAction, BarAction) and pass them into the constructor. The motivation here being that when I add a third action BazAction, it would be as simple as registering it in the Module and it would automatically be added to the list in the constructor. Is this possible?