Hi John,
There is nothing special about servlets except that they get reloaded if the jar file
or class files change. Getting a category instance is very fast. I would not waste my
time trying to optimize category creation. Ceki
At 17:29 12.04.2001 -0700, John Lindwall wrote:
>I understand why the log4j docs recommend declaring the Category as a static variable
>in a "normal" class -- this reduces the overhead of creating the object to a one-time
>event.
>
>Is this also the best approach to take in a Servlet? We have a heirarchy of servlets
>in our product all of which descend from a base servlet class. I figured I would
>reduce the cost of retrofitting all of these servlets with Category declarations by
>defining a Category in the base class and initalizing it in init(), like so:
>
>public class BaseServlet extends HttpServlet
>{
> /** The category that this class will use for logging */
> protected static Category log = null;
>...
> public void init(ServletConfig config)
> throws ServletException
> {
> super.init(config);
>
> // Initialize the logger using the subclass name as the category name
> log = Category.getInstance(getClass().getName());
> ...
>
>This should still be a low-cost approach since init() happens once. Does this idea
>seem valid?
>
>Thanks!
>-----------------------------------------------------------------
>John Lindwall
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>XIFIN
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>2233 Faraday Ave Ste A, Carlsbad CA 92008 (760) 804-0770 ext 16
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--
Ceki Gülcü Web: http://qos.ch
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