Step-by-Step Guide to create Servlets and EJBs
Package and Deploy on a JBoss server
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Omondo Corporation, IBM/Eclipse Partnerworld for Developer
November 2003
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This tutorial is not copyright protected, you may copy elements of this tutorial as you wish.
Tutorial length: Under two hours
Formats: XHTML
Level: Beginners
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Summary :
The purpose of this tutorial is to show that developing Eclipse
applications and using
can be easy with Omondo EclipseUML technologies.
Omondo EclipseUML is a UML case tool which has natively integrated
technologies inside Eclipse. Omondo provides a XDoclet Eclipse
plugin and J2ee model driven development architecture.
Our goal is always to integrate the best of breed open source
technologies and to respect the spirit of that solution. This is why we
decided to integrate XDoclet and add our modeling value, but did not
change XDoclet source code. This is the garantee that EclipseUML will
always easily upgrade to the latest release of any of its integrated
open source technology, will always respect official standards and will
always let our users change source code if needed.
is an open source project which enables Attribute-Oriented Programming for Java.
In short, this means that you can add more significance to your
code by adding meta data (attributes) to your Java sources. This is
done in special JavaDoc tags. XDoclet will parse your source
files and generate many artifacts such as XML descriptors and/or source code from it.
These files are generated from templates that use the information provided in
the source code and its JavaDoc tags.
XDoclet lets you apply
in component-oriented development. Developers should concentrate their editing work on only one
Java source file per component.
This approach has several benefits:
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You don't have to worry about outdating deployment meta-data whenever you touch the code.
The deployment meta-data is continuously integrated.
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Working with only one file per component gives you a
better overview of what you are doing.
If your component consists of several files, it is easy to lose track.
If you have ever written an Enterprise Java Bean, you know what we mean.
A single EJB can typically consists of 7 or more files.
With XDoclet you only maintain one of them, and the rest is generated.
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You dramatically reduce development time and can concentrate on business logic,
while XDoclet generates 85% of the code for you.
Currently XDoclet can only be used as part of the build
process utilizing .
Although XDoclet originated as a tool for creating EJBs,
it has evolved into a general-purpose code generation engine.
XDoclet consists of a core and a constantly growing
number of modules. It is fairly straightforward to write new modules if
there is a need for a new kind of component.
XDoclet comes with a set of modules for generation of
different kinds of files. Users and contributors can write their own
modules (or modify existing ones) if they wish to extend the
functionality of XDoclet.
You can cut Redundant Work. Model and Code your business logic and let XDoclet
generate the necessary boiler plate and support code for it, while still
having live bidirectional code and model synchronisation. This is a
worldwide premier inside EclipseUML Enterprise Edition.
XDoclet's advanced code generation features
make it easier to code J2EE applications.
XDoclet's modular design makes it easy for you to write your own
modules and Omondo will add an Eclipse Velocity Editor to customize everything you need.
The screenshots were captured using
,
and
We are using Sun JDK 1.4.2 and Eclipse 2.1 on Windows XP SP1. We
consider that you have successfully installed EclipseUML Enterprise Edition beta release 0.4.0.20031010 or a more recent release.
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All text, graphics © 2003 by Omondo
