Java“自我” （静态）参考 [英] Java "self" (static) reference

问题描述

我正在以静态上下文的方式寻找JAVA中当前类的自我引用，如 PHP范围解析运算符？

I am looking for a "self" reference to the current class in JAVA in a static context manner like in PHP Scope Resolution Operator?

解决方案：超出范围？请注意，这与静态定义真正慢（按因子300）进行比较：

Solution: Break out of scope? BEWARE, this is compared to a static definition really slow (by factor 300):

static Logger LOG = LoggerFactory.getLogger(new RuntimeException().getStackTrace()[0].getClassName());

老式的方式是：

static Logger LOG = LoggerFactory.getLogger(<Classname>.class.getName());

还有其他选择吗？我正在寻找一种将记录器定义放在抽象类中的方法。记录器应该确定它自己调用的类。

Are there any alternatives? I'm looking for a way to put the logger definition in an abstract class. The logger should determine the class it's being called from by itself.

推荐答案

稍微快一点

static final Logger LOG = LoggerFactory.getLogger(
       Thread.currentThread().getStackTrace()[0].getClassName());

如果这样做1000次，使用Class.class.getName（）和60需要36 ms ms这样做。也许它不值得担心太多。 ;）

If you do this 1000 times it will take 36 ms using Class.class.getName() and 60 ms doing it this way. Perhaps its not worth worrying about too much. ;)

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