Groups > comp.lang.java.programmer > #12800

Re: Question about loggers

From	Lew <noone@lewscanon.com>
Newsgroups	comp.lang.java.programmer
Subject	Re: Question about loggers
Date	2012-03-09 07:45 -0800
Organization	albasani.net
Message-ID	<jjd8i2$475$1@news.albasani.net> (permalink)
References	(3 earlier) <4f57fc25$0$290$14726298@news.sunsite.dk> <jjair3$63e$1@news.albasani.net> <29668555.311.1331223311031.JavaMail.geo-discussion-forums@vbbfv2> <jjase9$fo2$1@dont-email.me> <17863687.969.1331305893320.JavaMail.geo-discussion-forums@vblb5>

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Robert Klemme wrote:
> markspace wrote:
>> Robert Klemme wrote:
>>> We should mention that this is not exactly equivalent from the
>>> logging point of view.
>>
>> Also be aware that while static loggers are common in Java in general,
>> instance loggers are recommended best practice according the the Apache
>> Commons website.
>
> I think this is not exactly true if you are referring to this:
>
> "Note that for application code, declaring the log member as "static" is more efficient as one Log object is created per class, and is recommended. However this is not safe to do for a class which may be deployed via a "shared" classloader in a servlet or j2ee container or similar environment. If the class may end up invoked with different thread-context-classloader values set then the member must not be declared static. The use of "static" should therefore be avoided in code within any "library" type project."

Declaring a log member as 'static' is not more efficient. What are they 
talking about?

When advice is clearly baloney, you can disregard it.

> http://commons.apache.org/logging/guide.html
>
> Truth is that static loggers are recommended for application code; only for library code they recommend against static loggers.

Either way you take it, their recommendation is BS.

-- 
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

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Thread

Question about loggers Novice <novice@example..com> - 2012-03-07 21:52 +0000
  Re: Question about loggers Arne Vajhøj <arne@vajhoej.dk> - 2012-03-07 17:16 -0500
    Re: Question about loggers Novice <novice@example..com> - 2012-03-07 23:57 +0000
      Re: Question about loggers Arne Vajhøj <arne@vajhoej.dk> - 2012-03-07 19:24 -0500
        Re: Question about loggers Lew <noone@lewscanon.com> - 2012-03-08 07:22 -0800
          Re: Question about loggers Arne Vajhøj <arne@vajhoej.dk> - 2012-03-08 10:27 -0500
            Re: Question about loggers Lew <lewbloch@gmail.com> - 2012-03-08 11:58 -0800
              Re: Question about loggers Arne Vajhøj <arne@vajhoej.dk> - 2012-03-08 15:49 -0500
          Re: Question about loggers Robert Klemme <shortcutter@googlemail.com> - 2012-03-08 08:15 -0800
            Re: Question about loggers markspace <-@.> - 2012-03-08 10:05 -0800
              Re: Question about loggers Arne Vajhøj <arne@vajhoej.dk> - 2012-03-08 13:50 -0500
              Re: Question about loggers Robert Klemme <shortcutter@googlemail.com> - 2012-03-09 07:11 -0800
                Re: Question about loggers Lew <noone@lewscanon.com> - 2012-03-09 07:45 -0800
                Re: Question about loggers markspace <-@.> - 2012-03-09 07:54 -0800
                Re: Question about loggers Arne Vajhøj <arne@vajhoej.dk> - 2012-03-09 11:03 -0500
                Re: Question about loggers markspace <-@.> - 2012-03-09 09:10 -0800
                Re: Question about loggers Arne Vajhøj <arne@vajhoej.dk> - 2012-03-09 12:27 -0500
                Re: Question about loggers Lew <lewbloch@gmail.com> - 2012-03-09 10:56 -0800
                Re: Question about loggers Robert Klemme <shortcutter@googlemail.com> - 2012-03-09 20:29 +0100
                Re: Question about loggers Arne Vajhøj <arne@vajhoej.dk> - 2012-03-09 11:04 -0500
                Re: Question about loggers markspace <-@.> - 2012-03-09 09:14 -0800
                Re: Question about loggers Arne Vajhøj <arne@vajhoej.dk> - 2012-03-09 12:22 -0500
                Re: Question about loggers Lew <lewbloch@gmail.com> - 2012-03-09 10:58 -0800
  Re: Question about loggers markspace <-@.> - 2012-03-07 15:21 -0800
    Re: Question about loggers Novice <novice@example..com> - 2012-03-08 00:01 +0000
    Re: Question about loggers Arne Vajhøj <arne@vajhoej.dk> - 2012-03-07 19:21 -0500
      Re: Question about loggers Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-03-08 06:18 -0400

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