> Gary Montgomery wrote:
>
> > I know that servelets can use corba, rmi, sockets etc. to
> communicate with
> > back end processes but what about having clients on the front end
> > communicate with the
> > servlet via corba, rmi etc... ? Or must it be http.
> >
>
> Of course any protocol is possible in the general case (I've even accessed
> databases remotely with a standard JDBC driver, just to prove it could be
> done), but you need to be thinking about a couple of issues:
>
> * Am I going to be crossing firewalls at either the
> client end or the server end? You're going to run
> into hassles with the firewall managers if you ask
> for the TCP ports required by your protocol to be
> opened.
I agree. The admin needs to be able to choose http or corba based on their
local env. All of our clients only use our current cgi based solution on
intranets even though they could serve to the Internet.
>
> * Am I going to be shipping more bytes across the
> network if I go native protocol versus HTTP? This
> will have an impact on performance.
Will be shipping mostly 2d and 3d files around. Not sure which is better in
this case.
>
> * Is my client UI based on HTML? If so, you are
> probably better off with a servlet/JSP solution,
> and let the servlets talk to your back end services
> for you.
We have both an http and corba api that both we and third parties use to
write custom clients. The general trend is to move towards the corba api.
This project will be the hub of many different services that can be both
client and server to each other. Thats why it's important that it be able to
handle both http requests and corba requests.
Thanks for the input,
Gary
> Craig McClanahan
>
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