Peter,
You seem to know Struts Expresso well.. I am definitely using Struts in
this application we're starting to build. And, I *think* I want to use
Expresso as well to take advantage of all those extra steps it takes for
you..
There is one question. We are currently implementing Model 2X architecture
(which means that the View is XSLT-based rather than JSP. It will be an
XSLServlet that executes XSLT to transform XML (from the model) into HTML (or
others))
My question is.. Can I still do the Model 2X architecture using Expresso on
top of Struts? I think this approach would be straightforward, but am unsure
how much it might be limited by the Expresso architecture.
Also, one other related question. If you choose to use Expresso on top of
Struts, can you just integrate it into your current Struts app? Or, must you
instead reinstall configure everything to use Expresso (the Struts part
being sort-of hidden from you)??I guess what I am asking is how separate
is Expresso from Struts? If I use Expresso version X, do I have to also be
using the Struts version bundled with it? Or can I use an already separately
installed version of Struts?
Any insight here would be greatly appreciated.
Thanks,
Steve
On Fri, 4 Apr 2003 09:40:34 +0100 , PILGRIM, Peter, FM wrote
-Original Message-
From: resdev [mailto:[EMAIL PROTECTED]
Sent: 04 April 2003 07:04
To: Struts Users Mailing List
Subject: Re: Re: Which is the best Struts or Expresso ?
Hi,
wht happend ? im not getting any valuable reply that says
Struts is best.
does that mean Expresso is better ? i think even the Struts
developers are confused ...;)
----
How do you do
As an Expresso core committer, as would have to say is that the main
difference is that Jakarta Struts is a framework that provides
a defacto and complete Model View Controller implementation,
it fully implies Sun's Blueprint 2 Model architecture.
Both Struts and Expresso are frameworks, tools to help you, the
developer, write web applications. Expresso uses Struts as its MVC
implementation.
At this moment I integrated Struts 1.1 into Expresso last month.
Expresso provides more bits and pieces, such as an object relational
mapping layer, a caching API, database connection pool, action
state controllers, administration interface, security,
componentisation service architecture and so on.
I tend to think of the arguments are building A B C blocks.
I would rather not rewrite the wheel, hence I like Struts as a MVC.
I can concentrate on writing applications for myself or get paid
as a contractor. Whether to adopt Struts or Expresso
depends on the business requirements and the project. Struts is
a lighter weight because it only concentrates on MVC, and therefore
fits a lot of organisations, it is a smaller puzzle piece.
Whereever Expresso, you might have to think about other tools
from the J2EE architecture. Your business might have its own
business database pool API. Or it might use a different security
mechanism. This has been a problem, admittedly, that made Expresso
harder to push in to more enterprise, but help is it hand, because
a clever guy called Micheal Rimov, came up with a modular
service framework architecture recently. This new API is
still in development mode at the moment, but it looks promising,
very promising, because you will be able to define what Expresso
modules are loaded from a XML configuration. Customisation of the
framework.
So if you only need the default object caching API from Expresso,
and the connection the pool, you can write XML configuration.
But the bueaty of the service layer is that you could override,
write your caching API, or enhance the existing in,
and dynamically plug-in the module. The service layer will be
appearing in Expresso version 5.1 or beyond.
HTH - Now I got to go back to work
--
Peter Pilgrim,
Struts/J2EE Consultant, RBoS FM, Risk IT
Tel: +44 (0)207-375-4923
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