Logger.getLogger()

[jazy smith]

hi all,

can you tell me " Logger.getLogger(DBUtil.class.getName())" what this does ?

[Bear Bibeault]

Nothing to do with Servlets. Moved to a more appropriate location.

[David Newton]

It'd be helpful if you stated which logging package you're using. But in a nutshell it creates a logger for the specified class.

[jazy smith]

@david: Can you please explain in few lines. I tried to go through the javadocs for class.getName(). It returns the string. now here DBUtil is my class. so, that makes DBUtil.some_string_returnedby_class.getName(). Are you getting me what am I pointing towards and what is my doubt ?

[Paul Clapham]

No, you made your question more unclear by that post. Is your question "What does the getName() method of a class object return?" If so, and if the API documentation is unclear to you, then you could find that out by a small test program containing one line of executable code.

[jazy smith]

@ Paul: thanks dude. It worked for me !

[jazy smith]

guys,

this is interesting. (1) Logger.getLogger("Database.class.getName()");

(2) Logger.getLogger("Database.getName()");

(3) Logger.getLogger("hi.getName()");

(4) Logger.getLogger("hello.getName()");

(5) Logger.getLogger("getName()");


where Database is a java file. and hi and hello are nothing. ( just random words ) all above 5 cases give the same output. Why ? can anyone explain it to me ?

another Sequence. (1) Logger.getLogger(Database.class.getName()); --> works.

(2) Logger.getLogger(Database.getName()); --> doesn't work

(3) Logger.getLogger(getName()); --> doesn't work either

why is it so ??

[David Newton]

1) Because you're passing in a string which is meaningless to the logging system.
2) Probably because you're not matching the method signature of getLogger(), but since you don't indicate what the symptoms are, it's impossible to say much more. And I still don't know what logging system you're using.

[cow clarke]

It would be helpful to check doc on apache as following:
http://logging.apache.org/log4j/1.2/apidocs/index.html

it is obverisly nothing to do with serlet.

You can use Class as a pramater or use String as a pramater, both are the same.