在Java中替代static的替代方法 [英] Alternative to overiding static in java

问题描述

我想知道：将属性拟合到属于大型继承结构的类的最佳方法是什么？我想制作一个抽象的静态方法，每个类都可以重写该方法，但是在经过快速谷歌搜索后似乎无效。有什么建议么？

I was wondering: what would be the best way to fit an attribute to a class which is part of a large inheritance structure. I wanted to make an abstract static method which each class would override but after a quick google that doesn't seem to work. Any suggestions?

我可以将其设为实例方法，但它确实是类级别的规范。

I could make it an instance method but it really is a class level specification.

请先谢谢。

推荐答案

我建议您按照您的想法创建一个抽象方法，并按照以下方式实现该方法：

I would suggest you create an abstract method, just as you have thought of, and let this method be implemented in terms of static variables in each class.

abstract class Base {
    abstract String getValue();
}

class A extends Base {

    static String aValue = "From A";

    String getValue() {
        return aValue;
    }
}

class B extends A {

    static String bValue = "From B";

    String getValue() {
        return bValue;
    }
}

每个类都需要更多的样板，而不只是字段声明，但我认为对此很难做任何事情。

It requires a little bit more boiler plate in each class, than just a field declaration, but I believe it is hard to do anything about that.

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