在接口上注解？ [英] Annotations on Interfaces?

问题描述

我不能为我的生活出了能够在注释Java接口用例。

I can't for the life of me figure out a use case for being able to annotate interfaces in Java.

也许有人比我聪明可以给我一个例子吗？

Maybe someone smarter than I am could give me an example?

推荐答案

我用它在Spring注释，其中注释应适用于所有子类的接口。例如，假设你有一个服务界面，你可能有多个接口实现，但你想，无论注解的安全注解申请。在这种情况下，最有意义来注释接口

I've used it in Spring to annotate interfaces where the annotation should apply to all subclasses. For example, say you have a Service interface and you might have multiple implementations of the interface but you want a security annotation to apply regardless of the annotation. In that case, it makes the most sense to annotate the interface.

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