Re: WebSphere Adv vs Jboss W/tomcat

[Dieter.Bender@xxxxxxxxxxx (Dieter Bender)]

Hi Tim,

starting with the end: Best choice for you would be Tomcat.
Let me try some explanation

Tomcat is the reference implementation for Java Servlets and Java Server
Pages, is running on all platforms, including as400 and would be the best
choice, if you want to make servlets and Java Server Pages and don't need
nothing else. And Tomcat is free.
All applications running on Tomcat, will run on every Webserver of the
market, including webSphere, Bea and ...

JBoss is an Application Server for Enterprise Java Beans (distributed
components). JBoss is a java application, running on all java enabled
plattforms, including as400. And JBoss is free too. If you don't need EJBs,
you don't need JBoss.

There are several possibilities to do connection pooling.
1. Using an open Source Framework.  Easy to understand, runs in every
environment, withe each driver.
2. Using javax.servlet. Now you need an Apllication Server supporting this,
most of them do it today and all will do tomorrow, because it is java
standard. Now you need LDAP configuration for your server.
3. Using one of the special ways of Toolbox, WebSphere, Bea or something
other. Now your application will not run in another environment; and maybe
(or shure) you have to migrate your application after an upgrade of WebSphere
or BEA, or maybe OS400.

If you don't know, what Enterprise Java Beans are needed for, you don't need
them.
Some people use them, because some tool wants to use them - I would not use
this tools.

You really need it, if you want to spread your application over all servers
you have. I've never seen this within a typical as400 shop. I f your database
resists on computer A, your Application Layer sits on Computer B (and
tomorrow maybe C or B and C) and your presentation is generated on computer
D, then you will need EJBs.

Dieter


This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
--
[ Picked text/plain from multipart/alternative ]
I was thinking that Tomcat was equal to the standard Webshere, and Jboss is
equal to the advanced WebSphere... But I was trying to figure out, in
laymans terms, what does Jboss do that Tomcat does not?

And what i'm trying to do is this...  The other day I learned about
connection pooling, so I was wondering if I wanted connection pooling in my
servlets, do I need something like JBoss?

Plus I don't understand what an EJB is,  (my guess, Enterprise java bean?)
and why would I use it...

Thanks, tim

Am Donnerstag, 28. März 2002 01:01 schrieben Sie:
> This message is in MIME format. Since your mail reader does not understand
> this format, some or all of this message may not be legible.

--
mfG

Dieter Bender


DV-Beratung Dieter Bender
Wetzlarerstr. 25
35435 Wettenberg
Tel. +49 641 9805855
Fax +49 641 9805856
www.bender-dv.de