Re: jboss normal client/server communication

From: bigbinc (bigbinc_at_hotmail.com)
Date: 10/20/03 

Date: 20 Oct 2003 07:47:42 -0700

Jon Martin Solaas <jonmartin.solaas@mail.link.no> wrote in message news:<XzOkb.655$GK9.170749952@news.telia.no>...
> bigbinc wrote:
> > I have been using jboss for a short time and am pretty interested, but
> > how should I research using jboss on one machine and a non j2ee on
> > another machine.
> > The non-j2ee will communicate through a servlet, the jboss will
> > receive the messages with its bean protocol.
> >
> > Could I use SOAP, normal socket communication?
>
> You could use both soap or webservices to achieve this, but you'd need
> some client side libraries for marshalling and setting up the
> communications in both cases.
>
> Setting up a servlet on the server and communicate directly with this
> from your client should also work, for many purposes «inventing» a small
> protocol on top of http works just fine. The servlet could even emit
> xml. If your client talk TCP you should be able to get along with no
> specific client libs.
>
> Communicating thru sockets should also work, but I'm not sure how you
> should configure your serverside component. EJB's can't use sockets. I
> guess servlets can, but using servlets (or jsp), talking http would be a
> much more natural choice. (Actually EJB's can use sockets, nobody checks
> that, but it's in violation of the spec, and taking into account how
> ejb's are implemented (on various servers) you'd end up getting some
> quite unexpected results, I suppose ...)
>
> It's pretty important to consider the needs of your app before settling
> for a specific architecture. Exactly how is the client meant to be
> implemented? Swing? Web-pages? Is it perhaps a Windows-program? Is it
> going to run in the same local area network as the server, or are they
> going to communicate over the Internet? The most usual way to do this
> today is to have everything running on the server and let users access
> the app with a browser.

Let me ask another question? (I could ask on jboss forums, I know)
Can you make normal jdbc connections to a database from an ejb. I
pretty sure the answer is yes, but is this an awkward way of
interacting with a database. I havent quite understood all of the ejb
specs to develop a transaction system but I already have database
interaction code.

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