J2EE/EJB and Python

[Silvana Di Martino]

My group recently received its first request for the the development of a
really large and complex enterprise-level application, the kind of app that
would require the use of tools like Enterprise Java Beans and J2EE (it is
something very similar to the "Titan Cruise" example supplied by Richard
Monson Haefel in his fine book "Enetrprise JavaBeans", for the people who
read it).

Of course, being all Pythonists, we wonder if there was any
project/architecture/technology like EJB and J2EE in/for Python.

We are aware of JBoss (http://www.jboss.org ,
http://sourceforge.net/projects/jboss) and of JOnAS
(http://jonas.objectweb.org/) so we are not concerned about the availability
of standard-compliant, high-quality, J2EE open-source implementations. Also,
we are aware of the fact that we can use Python and JPython together with
J2EE and EJB. We just wonder if the development of anything like J2EE and EJB
has ever been attempted by the Python community.

Looking around, I found a few Application Servers (like "Crusader":
http://www.movatis.com/crusader), Transaction Servers and Distributed Object
Technology systems (like "PyRO": http://sourceforge.net/projects/pyro) that
vaguely resemble to parts of J2EE so I think it is not impossible that a
Python-based J2EE competitor/equivalent has ever been planned.

Does anybody know of anything like that? Any web link?

(We will greatly appreciate any URL of Python tools or technologies that can
be used for the development of complex, multi-tier, business applications, as
well.)

Many thanks for you attention.

-----------------------------------------
Alessandro Bottoni
al***************@interfree.it

[Richard Shea]

Silvana Di Martino <si**************@tin.it> wrote in message news:<ma************************************@pytho n.org>...

My group recently received its first request for the the development of a
really large and complex enterprise-level application, the kind of app that
would require the use of tools like Enterprise Java Beans and J2EE (it is
something very similar to the "Titan Cruise" example supplied by Richard
Monson Haefel in his fine book "Enetrprise JavaBeans", for the people who
read it).

Of course, being all Pythonists, we wonder if there was any
project/architecture/technology like EJB and J2EE in/for Python.
I haven't had time to read the article myself yet but you might find
....

http://www.boddie.org.uk/python/web_...nterprise.html

.... interesting.

[snip] Also,
we are aware of the fact that we can use Python and JPython together with
J2EE and EJB.

I've thought about Jython/J2EE myself in the past - but is this
actually true ? I know very little about J2EE - is it the case that a
..jar (or whatever) produced out of Jython can be used within J2EE ? If
there are online examples/articles describing this I'd be interested
to hear of them.

thanks

richard shea.

[Dieter Maurer]

Silvana Di Martino <si**************@tin.it> writes on Sun, 21 Mar 2004 10:56:07 +0000:

...
Looking around, I found a few Application Servers (like "Crusader":
http://www.movatis.com/crusader), Transaction Servers and Distributed Object
Technology systems (like "PyRO": http://sourceforge.net/projects/pyro) that
vaguely resemble to parts of J2EE so I think it is not impossible that a
Python-based J2EE competitor/equivalent has ever been planned.

You get part of the picture with Zope (http://www.zope.org).

Compared with J2EE+EJB, Zope lacks request spanning transactions
and the third tier corresponding to EJB containers.

We use Zope as base of an E-Commerce platform.
We recently replaced a J2EE+EJB E-commerce solution
by the Zope based platform. The Zope solution was much
lighter weight (especially with respect to development time).
Dieter