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可以从所有其他类访问的类

[英]class accessible from all other classes

原文 2011-04-04 23:49:22 0 2 java/ android

I have some database functions and would like to make those database functions accessible too all of my other classes. 我有一些数据库函数，并希望这些数据库函数也可以访问我的所有其他类。 I would like to keep the functions in one place so they are easy to modify. 我想将这些功能保存在一个地方，以便于修改。 What is the best way to achieve this goal? 实现这一目标的最佳方法是什么？ My application is running on android and is using threading and events. 我的应用程序在android上运行，并且正在使用线程和事件。

Thanks in advance, if you need more information let me know. 在此先感谢，如果您需要更多信息，请告诉我们。

2 个解决方案

make a class with all static methods/variables, or alternatively a Singleton 使用所有静态方法/变量创建一个类，或者使用Singleton
synchronize stuff if you need to, sounds like you might 如果你需要同步东西，听起来像你可能

Absolutely no reason why you can't have a package level class called something like DatabaseUtils and put general static methods in there. 绝对没有理由你不能拥有像DatabaseUtils这样的包级别类，并将常规静态方法放在那里。 Doesn't have much bearing on it that you're using threading and events, although you will want to ensure your utility methods can handle simultaneous access if that's a possibility. 虽然您可能希望确保您的实用程序方法可以同时访问（如果可能），但您对使用线程和事件没有多大影响。