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List:       jboss-user
Subject:    RE: [JBoss-user] A few J2EE/EJB design questions
From:       "saroj kumar" <kumar.saroj () wipro ! com>
Date:       2002-12-28 15:36:32
[Download RAW message or body]

Regarding Singleton, We can keep a reference in JNDI context or
In a session bean.

Usage of log4j: I have explained earlier on the list.

>-----Original Message-----
>From: jboss-user-admin@lists.sourceforge.net 
>[mailto:jboss-user-admin@lists.sourceforge.net] On Behalf Of 
>Peter Fagerlund
>Sent: Saturday, December 28, 2002 6:42 AM
>To: jboss-user@lists.sourceforge.net
>Subject: Re: [JBoss-user] A few J2EE/EJB design questions
>
>
>
>fredagen den 27 december 2002 kl 21.23 skrev Sasidharan, Manoj:
>
>> 1. Can a singleton class object be garbage collected by App server 
>> (JBoss)??
>> If so, can this be avoided/controlled?
>
>Keep a reference to Your object valid for the lifespan of the 
>same ! ...
>
>> 2. How to use Log4J for logging? Some pointers to 
>implementation would 
>> be
>> helpful.
>
>Read The Manual ! ...
>
>> 3. What is the best design strategy to provide a 
>configuration file to 
>> an
>> EJB application - XML, JMX, etc..??
>
>The best design is governed by Your application ! ...
>
>> 4. Does App Server (JBoss) have some built-in Auditing features..
>
>Yes - while in the (JBoss)  VM You can extract 'ALL' ! ...
>
>> 5. Can we get some service performance statistics from App server
>> * what was the min, avg and max response time for a Session bean 
>> method call
>> * and some other performance matrix pointing out system wide 
>> bottlenecks
>
>Yes You can ... email :  jbg@jboss.org
>
>> Thanks in advance for your time.
>
>You are Welcome
>/peter_f
>
>
>
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