Ejb vs jsp

[Vincent Stoessel <vi...@xaymaca.com>]

Hello,
Because I am curious about how these technologies are used in the real 
world. I would like to know how do you professionals use as your rule of 
thumb wether or not you are going build  web based  application using
Enterprise Javabeans or a standalone jsp applications.
Thanks in advance.
-- 
Vincent Stoessel
Linux Systems Developer
vincent xaymaca.com


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RE: Ejb vs jsp

[Kim Albee <ka...@einsof.com>]

We use JSP with our Java-based content management and collaboration engine,
which is RMI based, not EJB based.  The design of the java beans in our
persistent and manager layer could all be modified to run inside of an EJB
container, however, then there is the added expense of an Application
Server, that may not be necessary.  EJB for the most part, works well when
extending or bringing to the web a legacy system, or something of that
nature.  Or, if there is no overall framework in place for a large scale
development, then having an EJB container would provide many of the common
framework essentials that would otherwise need to be invented.  That way,
developers can focus on the essential building blocks rather than the
internal framework components.

JSP is only for the presentation layer -- we use it to dynamically create
the pages, based on a number of factors.

Kim Albee
Einsof, Inc.
www.einsof.com

-----Original Message-----
From: Daniel Hinojosa [mailto:dhinojosa@qwest.net]
Sent: Monday, May 06, 2002 2:24 PM
To: Tomcat Users List
Subject: Re: Ejb vs jsp




Vincent Stoessel wrote:

> Hello,
> Because I am curious about how these technologies are used in the real
> world. I would like to know how do you professionals use as your rule
> of thumb wether or not you are going build  web based  application using
> Enterprise Javabeans or a standalone jsp applications.
> Thanks in advance.

I use them both.  EJB are used to model information that is based on a
db or other storage services.  I use the JSP as a view to dynamically
create HTML.

--
Daniel Hinojosa
Java & XML: Consultant | Developer | Instructor
P.O. Box 4675
Albuquerque, NM 87196-4675
(505) 363-5832






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Re: Ejb vs jsp

[Daniel Hinojosa <dh...@qwest.net>]

Vincent Stoessel wrote:

> Hello,
> Because I am curious about how these technologies are used in the real 
> world. I would like to know how do you professionals use as your rule 
> of thumb wether or not you are going build  web based  application using
> Enterprise Javabeans or a standalone jsp applications.
> Thanks in advance.

I use them both.  EJB are used to model information that is based on a 
db or other storage services.  I use the JSP as a view to dynamically 
create HTML.

-- 
Daniel Hinojosa
Java & XML: Consultant | Developer | Instructor
P.O. Box 4675
Albuquerque, NM 87196-4675
(505) 363-5832






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Re: Ejb vs jsp

[Kyrre Lugg <ky...@tomra.no>]

Nikola Milutinovic wrote:

[cut]

> Even now, I
> use regular Beans which do preety much the same job as EJB, only
> simplified. I haven't gotten JBoss up yet, but even with a very simple
> example I find EJBs appealing.


Yes. I also found simple EJB-examples appealing, but when I started 
thinking about how to adapt a more complex business model (that takes 
advantage of inheritance and polymorphism) to the EJB component model, I 
became more unsure.

Other thougths on this?

Kyrre Lugg


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Re: Ejb vs jsp

[Nikola Milutinovic <Ni...@ev.co.yu>]

> Hello,
> Because I am curious about how these technologies are used in the real 
> world. I would like to know how do you professionals use as your rule of 
> thumb wether or not you are going build  web based  application using
> Enterprise Javabeans or a standalone jsp applications.

Why would you build a EJB web application *without* JSP? :-)

Anyway, it is really a rule of thumb and your general mood. Even now, I use regular Beans which do preety much the same job as EJB, only simplified. I haven't gotten JBoss up yet, but even with a very simple example I find EJBs appealing.

Nix.