如何将硬编码的枚举转换为不同的语言？ [英] How to convert hardcoded enum to different language?

问题描述

我有一个自动生成一个我使用的webservice的枚举，所以我不能修改这个枚举类，因为进一步的更新会覆盖它。

我想提供枚举的翻译：

  //我不能修改这个类
 public enum Time {
 PAST 过去），现在（现在），未来（未来）; 
 private final String value; 
} 
 
 
 //我的代码
时间= getTimeFromWebservice（）; 
字符串翻译; 
 
 switch（time.value（））{
 case：过去：translation =Vergangenheit;打破; 
 case：Present：translation =Gegenwart;打破; 
 case：Future：translation =Zukunft;打破; 
} 
  

我如何改善这一点？

解决方案

您不能在运行时动态扩展/修改枚举。他们被视为常数。

通常如果你想做国际化，所有的翻译都是从一个 ResourceBundle 加载的。您可以使用枚举文字作为关键：

  String translation = bundle.getString（time.name（））; 
  

或者你可能想要键入前缀：

  String translation = bundle.getString（myprefix。+ time.name（））; 
 
 //或使用完全限定名：
字符串翻译= bundle.getString（time.getClass（）。getCanonicalName（）+。+ time.name（））; 
  

请参阅 http://docs.oracle.com/javase/tutorial/i18n/resbundle/index.html 详细信息。

I have an enum that is autogenerated of a webservice I use, thus I cannot modify this enum class as further update would override it.

I would like to provide translation for the enum:

//I cannot modify this class
public enum Time {
    PAST("Past"), PRESENT("Present"), FUTURE("Future");
    private final String value;
}


//my code    
Time time = getTimeFromWebservice();
String translation;

switch(time.value()) {
   case: "Past": translation = "Vergangenheit"; break;
   case: "Present": translation = "Gegenwart"; break;
   case: "Future": translation = "Zukunft"; break;
}

How could I improve this?

解决方案

You cannot dynamically extend/modify enums at runtime. They are treated like constants.

Usually if you want to do internationlization, all translations are loaded from a ResourceBundle. You can use the enum literal as key:

String translation = bundle.getString(time.name());

Or maybe you want to prefix the key:

String translation = bundle.getString("myprefix." + time.name());

// or use full qualified name:
String translation = bundle.getString(time.getClass().getCanonicalName() + "." + time.name());

See http://docs.oracle.com/javase/tutorial/i18n/resbundle/index.html for details.

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