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From: Paul Smith <psmith@aconex.com>
Subject: Re: How to use Log4J in Multiple classes? App Design?
Date: Wed, 13 Jul 2005 10:02:35 +1000
To: "Log4J Users List" <log4j-user@logging.apache.org>

I would really suggest you follow the standard pattern and have one  
Logger per class ala:

public class MyClass {

   private static final Logger LOG = Logger.getLogger(MyClass.class);

....


Let each class log it's own stuff.

Paul Smith

On 13/07/2005, at 9:57 AM, John Hurt wrote:

> Hi,
>
> My application is split up into multiple classes. If I had  
> processing in
> each class that I wanted to log, what's the best way to make a  
> reference to
> the Logger available, so that for instance they all write to the  
> same log
> file?
>
> Do I create an instance of the Logger class at the beginning of the  
> program
> flow, then pass that class to all the methods/classes that plan to do
> logging?
>
> Do I make a wrapper singleton class that has a Logger in it and all  
> code
> refers to the wrapper class?
>
> Do I use a base class (or interface or abstract class) that includes a
> reference to a Logger class?
>
> Anyone has generic examples where Logger is used in more than 1  
> class, how
> to use it gracefully? Thanks.
>


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