Hi Xavier,

> > I agree with u that those many if statements will clutter code. But a 
> > method call everytime is also expensive in terms of performance. So it 
> > is really a trade off between performance and
> 
> Is the difference in performance really significative in a web 
> application?
> 
> Without a benchmark, I would say that in a typical response there are 
> *lots* of method calls from the ones in your code passing through 
> Struts/Hibernate/etc. down to the Java library. Some of them 
> non-trivial as the ones regarding persistence. If the comparison was 
> going to be 1 versus 1.00000000000001 (if it is measurable at all) I 
> wouldn't see a real trade-off there.
I think it's not the method calls, but the creation of the log messages
that makes performance an issue.
    cf. 
http://jakarta.apache.org/commons/logging/api/org/apache/commons/logging/Log.html
Of course, you have to measure to be sure about performance, ;)

Best regards,
-- Shinobu Kawai

--
Shinobu Kawai <[EMAIL PROTECTED], [EMAIL PROTECTED]>




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