Re: Advantages of using static log methods vs sub classes methods

2007-11-12 Thread James A. N. Stauffer
A wrapper class (if you use something I suggest that you use something that
is has been well-tested like commons-logging instead of writing your own)
allows you to switch logger implementations but probably prohibits the use
of some functionality.  I would suggest using a wrapper only if you foresee
the need to change logger (i.e. if you are writing a framework and want to
leave the logger choice to someone else).

On Nov 12, 2007 1:46 PM, Integrator [EMAIL PROTECTED] wrote:


 Hi ,

 I am comparing the advantages and disadvantages using log4j at its own vs
 some sub classes (or wrapper classes) with methods for logging messages
 from
 application.


 Which one is better and why ? So far i could understand Utilization of
 wrapper ensures that you are not tied to specific logging solutions.

 Is that it or there is something more ? Please express your views and
 experience on it.

 Thanks,
 Integrator

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James A. N. Staufferhttp://www.geocities.com/stauffer_james/
Are you good? Take the test at http://www.livingwaters.com/good/


Re: Advantages of using static log methods vs sub classes methods

2007-11-12 Thread Integrator

The loggers instance are being generated from a factory pattern in a j2ee
aplication and implements the log methods from wrapper class. Rather then
calling default logging methods from Logger (Catagory) Class. 

Thanks.


James A. N. Stauffer wrote:
 
 A wrapper class (if you use something I suggest that you use something
 that
 is has been well-tested like commons-logging instead of writing your own)
 allows you to switch logger implementations but probably prohibits the use
 of some functionality.  I would suggest using a wrapper only if you
 foresee
 the need to change logger (i.e. if you are writing a framework and want to
 leave the logger choice to someone else).
 
 On Nov 12, 2007 1:46 PM, Integrator [EMAIL PROTECTED] wrote:
 

 Hi ,

 I am comparing the advantages and disadvantages using log4j at its own vs
 some sub classes (or wrapper classes) with methods for logging messages
 from
 application.


 Which one is better and why ? So far i could understand Utilization of
 wrapper ensures that you are not tied to specific logging solutions.

 Is that it or there is something more ? Please express your views and
 experience on it.

 Thanks,
 Integrator

 --
 View this message in context:
 http://www.nabble.com/Advantages-of-using-static-log-methods-vs-sub-classes-methods-tf4793407.html#a13712766
 Sent from the Log4j - Users mailing list archive at Nabble.com.


 -
 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail: [EMAIL PROTECTED]


 
 
 -- 
 James A. N. Staufferhttp://www.geocities.com/stauffer_james/
 Are you good? Take the test at http://www.livingwaters.com/good/
 
 

-- 
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RE: Advantages of using static log methods vs sub classes methods

2007-11-12 Thread Bender Heri
I would use wrappers, if at all, only for app or module wide special loggers 
(like fatal error alerting etc.), and only 
- if there is a special need to do something with the log event which cannot be 
done using the log4j framework 
- if some special initializing of the involved appenders is needed which cannot 
be done through configuration.

For debugging purpose I would recommend to use it the usual way (each class has 
its private logger instance which is named after the fully qualified 
classname). 
Advantages:
- you keep the main benefit of log4j to finetune your log output depending on 
classes or packages per configuration without changing code. 
- you can reuse some basic classes in other apps without to have carry over 
your log wrapper. Applies also to unit testing which can be done without the 
need of initializing the wrapper framework.

Disadvantages of wrapper:
- wrapper instances have to be carried all along the callstack or must be 
accessible in a static way.
- Danger of unwanted dependencies (also circular) grows.

Heri

 -Original Message-
 From: Integrator [mailto:[EMAIL PROTECTED]
 Sent: Monday, November 12, 2007 8:47 PM
 To: log4j-user@logging.apache.org
 Subject: [SPAM (Bayesain Analysis)] - Advantages of using static log
 methods vs sub classes methods - Bayesian Filter detected spam
 
 
 
 Hi ,
 
 I am comparing the advantages and disadvantages using log4j 
 at its own vs
 some sub classes (or wrapper classes) with methods for 
 logging messages from
 application.
 
 
 Which one is better and why ? So far i could understand Utilization of
 wrapper ensures that you are not tied to specific logging solutions.
 
 Is that it or there is something more ? Please express your views and
 experience on it.
 
 Thanks,
 Integrator
 
 -- 
 View this message in context: 
 http://www.nabble.com/Advantages-of-using-static-log-methods-v
 s-sub-classes-methods-tf4793407.html#a13712766
 Sent from the Log4j - Users mailing list archive at Nabble.com.
 
 
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 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail: [EMAIL PROTECTED]
 
 

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