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From Martin Diener <mar...@diener.com>
Subject Re: EJB problem
Date Thu, 05 Apr 2001 12:59:48 GMT
Well,

logging in EJBs is a little tricky and depends on the EJB container
implementation. According to Sun's EJB spec a EJB is not able
to write in a file. Unfortunatly, there are a few impementations 
which don't behave like the spec. If you decide to use this bug, say
good by to portability.
But this is not a problem for log4j. I have good experiences with
several EJB Containers using the syslog appender. Others work
with the socket appender. (Don't get confused with the sun spec here -
you can't write a EJB acting as server using a dedicated socket. But
logging is done in the client role - that's fine.)
I did a few experiments with the JMS appender. The appender itself
looks great, but the JMS implementation I used was realy bad. You
can manage it, but be prepared to learn a lot about JMS.

This hints hopefully help
Martin Diener


Am Mittwoch,  4. April 2001 23:06 schrieben Sie:
> Hi All,
> I have a class called "A" . This class A has a  variable cat:category.
> It logs using Fileappender (writes to a file).
> Now A calls a session Bean "SB". This session bean has another variable
> SB_cat:category. In one of the methods of SB there is a statement
> SB_cat.warn("I am in Session Bean");
> But this statement is not printed in the file. rather I get the error
> that Appender not attached. Why do I need to attach an appender when I
> allready have BasicConfigurator(appender) in class A.
> Can anyone please suggest how to use log4j in Beans
> THanks
> Sac
>
> --
> Sachin Wadhwa
> Product Developer
> DWL Incorporated
> 230 Richmond Street East Level 2
> Toronto, ON
> M5A 3X9
> T: (416)364-2045 x 2463
> F: (416)364-2422
> www.dwl.com
>
>
>
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