Java "self" (static) reference

java static scope self
feffi picture feffi · Mar 11, 2011 · Viewed 16.1k times · Source

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

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());

The old-fashioned way would be: 

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

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.

Answer

Peter Lawrey picture Peter Lawrey · Mar 11, 2011

The slightly faster

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

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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