避免在Java中重复导入:继承导入? [英] Avoid repeated imports in Java: Inherit imports?

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问题描述

有没有办法继承进口?

示例:

普通枚举:

public enum Constant{ ONE, TWO, THREE }

使用此枚举的基类:

public class Base {
    protected void register(Constant c, String t) {
      ...
    }
}

需要导入的子类使用枚举常量方便(不含枚举名称):

Sub class needing an import to use the enum constants convenient (without enum name):

import static Constant.*; // want to avoid this line!  
public Sub extends Base {
    public Sub() {
        register(TWO, "blabla"); // without import: Constant.TWO
    }
}

另一个类同样导入...

and another class with same import ...

import static Constant.*; // want to avoid this line!
public AnotherSub extends Base {
    ...
}

我可以使用经典的静态最终常量,但也许有一种方法可以使用相同的方便的常用枚举。

I could use classic static final constants but maybe there is a way to use a common enum with the same convenience.

推荐答案

import 只是帮助编译器查找类。它们对单个源文件是活跃的,与Java的OOP机制无关。

imports are just an aid to the compiler to find classes. They are active for a single source file and have no relation whatsoever to Java's OOP mechanisms.

所以,不,你不能继承 import s

So, no, you cannot "inherit" imports

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