如何在 Java 中找到特定接口的所有(子)子接口?

How to find all (child) sub-interfaces of a particular interface in Java?

给定一个接口:

public interface A {};

具有继承接口:

public interface B extends A {}

public interface C extends A {}

如何以编程方式扫描以查找 BC? IE。如何做到这一点:

Type[] types = findAllSubInterfacesOfA(); // Returns [B.class, C.class]

注意:我试图在这里找到接口,不是 类或实例。

下面的代码片段应该可以做到。

public class FindSubinterfaces {

    public static void main(String[] args) {
        Class clazz = A.class;

        Reflections reflections = new Reflections(new ConfigurationBuilder()
                .setUrls(Arrays.asList(ClasspathHelper.forClass(clazz))));

        Set<Class<? extends List>> subTypes = reflections.getSubTypesOf(clazz);
        for (Class c : subTypes) {
            if (c.isInterface()) {
                System.out.println("subType: " + c.getCanonicalName());
            }
        }
    }
}

interface A {
};

interface B extends A {
}

interface C extends A {
}

class CA implements A {
}

abstract class DC implements C {
}

输出

subInterface: sub.optimal.reflections.B
subInterface: sub.optimal.reflections.C