RuntimeException的方法是否在方法签名中显示？ [英] Should methods that throw RuntimeException indicate it in method signature?

问题描述

例如，框架/ JDK中的许多方法可能会抛出

  java.lang.SecurityException 
  

但这并不在方法签名中指明（因为这是通常为检查异常保留的做法）。
我想争辩说，在方法sigs中声明RuntimeExceptions有很多好处（例如类似于静态类型检查）。我是醉酒还是其他？

解决方案

我不会在签名中声明未经检查的异常，因为它对用户的误导那个API。是否必须明确处理异常是不明显的。

在javadoc中声明它是一个更好的方法，因为它允许某人处理它，如果他们认为它是必要的，但知道他们可以忽略它，如果他们想要的。这使得选中和未选中之间的分隔清除。

For example, many methods in frameworks/JDK might throw

java.lang.SecurityException 

but this is not indicated in the method signature (since that is a practice normally reserved for checked exceptions). I want to argue that declaring RuntimeExceptions in method sigs has many benefits (akin to static type checking for example). Am I drunk or otherwise?

解决方案

I would not declare an unchecked exception in the signature, since it is misleading to the user of that API. It is no longer obvious whether the exception has to be explicitly handled.

Declaring it in the javadoc is a better approach since it allows someone to handle it if they think it is necessary, but knowing they can ignore it if they want. This makes the separation between checked and unchecked clear.

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