Implement generic methods from an interface without clutter?

Is there any way to avoid the clutter of adding all the types to the class definition when implementing an interface such as this?

MyInterface.java

import java.util.List;
abstract class BaseA {}
abstract class BaseB {}
abstract class BaseC {}

interface MyInterface<T exten开发者_开发知识库ds BaseA, U extends BaseB, V extends BaseC> {
    public void foo( List<? extends T> list );
    public void bar( List<? extends U> list );
    public void baz( List<? extends V> list );
} 

MyImplementation.java

/* Some concrete implementations of the abstract classes used in the interface */
class A extends BaseA{}
class B extends BaseB{}
class C extends BaseC{}

class MyImplementation implements MyInterface<A,B,C> {
    public void foo( List<? extends A> list){}
    public void bar( List<? extends B> list){}
    public void baz( List<? extends C> list){}
}

What I don't like about this is that stuff that I find to be method specific, such as the type of parameters, is mixed with the class declaration. As in this case, where I for each generic method in the interface have to add one formal type in "the bracket section".

Is there another way of achieving the above (forcing a caller of the implementation to use a specific subclass of the parameter class in the interface) without all of the "clutter"?

I am not too into generics, and the above code is basically based on an answer to this question.

---

This is how generics works, however if you find yourself adding to a long type-list, you might reconsider your design. I would in this case (without really knowing the purpose of your code), generalize the interface some more:

abstract class PlayBase {}
interface MyInterface<T extends PlayBase> {
    public void playWith(List<T> list);
}   

...and an example implementation:

class A extends PlayBase {}
class MyImplementationA implements MyInterface<A> {
    public void playWith(List<? extends A> list){}
}

This way the design is much more open to change of types in a nice way (no need to change the interface).

---

How about this:

interface MyInterface {
    public <T extends BaseA> void playWithA( List<? extends T> list );
    public <U extends BaseB> void playWithB( List<? extends U> list );
    public <V extends BaseC> void playWithC( List<? extends V> list );
}