Re: Mainitaining Session in Application Server

Baloney. That myth continues to causes people to develop really bad
designs. The only overhead a stateful session bean adds is the disk/db
space needed to persist it's data. That's no different that using a
stateless bean and persisting the data in a db table.

Since a stateless bean *always* losses it's state between invocations,
much greater overhead is incurred since a DB request is need for each
and every call. If you cannot get decent performance with a stateful
session bean in your app server, pick a different one. That's the whole
point of having a J2EE standard.

As pointed out hundreds of times on this list, creating a true singleton
that works in a cluster is very difficult.

--Victor


Mark Galbreath wrote:

> Not for something this trivial - stateful session beans are VERY
> expensive.  Just put whatever you want to persist in either context
> scope with a singleton or in entity beans that map to the appropriate
> db table(s).
>
> Mark
>
>     -----Original Message-----
>     *From:* A mailing list for Enterprise JavaBeans development
>     [mailto:[email protected]]*On Behalf Of *Kumar.K.R
>     *Sent:* Tuesday, December 09, 2003 4:51 AM
>     *To:* [email protected]
>     *Subject:* Re: Mainitaining Session in Application Server
>
>     You can use Stateful session beans right?.
>
>         -----Original Message-----
>         *From:* A mailing list for Enterprise JavaBeans development
>         [mailto:[email protected]]*On Behalf Of *Saidas Kottawar
>         *Sent:* Tuesday, December 09, 2003 2:42 PM
>         *To:* [email protected]
>         *Subject:* Mainitaining Session in Application Server
>
>         Hi All,
>
>         I have one scenarion. Will apreciate if you can give some
>         valuable information.
>         We are currently working on J2EE application and we ar only
>         dealing with Server side components.
>         I want to maintain the session information in EJBS, how can I
>         do that i.e. I want to provide the same functionality as
>         HttpSession provides in Servlet.
>
>         I would also like to know how it is going to work in cluster
>         enviorment.
>
>         Thanks in advance.
>
>         Regards,
>         Saidas Kottawar
>
>         |
>
>         MASTEK
>         "Making a valuable difference"
>         Mastek in NASSCOM's 'India Top 20' Software Service Exporters
>         List.
>         In the US, we're called MAJESCO
>
>         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>         Opinions expressed in this e-mail are those of the individual
>         and not that of Mastek Limited, unless specifically indicated
>         to that effect. Mastek Limited does not accept any
>         responsibility or liability for it. This e-mail and
>         attachments (if any) transmitted with it are confidential
>         and/or privileged and solely for the use of the intended
>         person or entity to which it is addressed. Any review,
>         re-transmission, dissemination or other use of or taking of
>         any action in reliance upon this information by persons or
>         entities other than the intended recipient is prohibited. This
>         e-mail and its attachments have been scanned for the presence
>         of computer viruses. It is the responsibility of the recipient
>         to run the virus check on e-mails and attachments before
>         opening them. If you have received this e-mail in error,
>         kindly delete this e-mail from all computers.
>         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>         |===========================================================================
>         To unsubscribe, send email to [email protected] and
>         include in the body of the message "signoff EJB-INTEREST". For
>         general help, send email to [email protected] and include
>         in the body of the message "help".
>
>     ===========================================================================
>     To unsubscribe, send email to [email protected] and include in
>     the body of the message "signoff EJB-INTEREST". For general help,
>     send email to [email protected] and include in the body of the
>     message "help".
>
> ===========================================================================
> To unsubscribe, send email to [email protected] and include in the
> body of the message "signoff EJB-INTEREST". For general help, send
> email to [email protected] and include in the body of the message
> "help".
>

===========================================================================
To unsubscribe, send email to [email protected] and include in the body
of the message "signoff EJB-INTEREST".  For general help, send email to
[email protected] and include in the body of the message "help".