如何访问泛型类型中的泛型类型？

Question

假设我有一个摘要class A

public abstract class A<T extends SomeClass, R extends SomeClass> {
...
}

我还有一个class B

public class B<S extends A> {
...
}

如何在 B 中访问 T 和 R？当我尝试

public class B<F,G,S extends A<F,G>> {

它给出错误

error: type argument K#1 is not within bounds of type-variable K#2
public class B<F,G,S extends A<F,G>> {
                                    ^
where K#1,K#2 are type-variables:
K#1 extends Object declared in class B
K#2 extends SomeClass declared in class A

Answer 1

只要@JohannesKuhn 不post他的评论作为答案：
解决方案是class B<T extends SomeClass, R extends SomeClass, S extends A<T, R>>

如何访问泛型类型中的泛型类型？

How can a generic type within a generic type be accessed?

java

generics

extends