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This tutorial assumes you have a working knowledge of Java technology and EJB

technology. In depth knowledge of EJB components, Web services, and Ant are helpful

but not required to understand the key concepts. Ant is used to build and deploy the

example applications. Reference to introductory material on Ant, Java technology,

J2EE, Web services, XML, and EJB components are provided in throughout the tutorial

and at the references section at the end of this tutorial.

The source code in the tutorial has been tested with

Resin EE

application server.

The applications should be easy to port to other J2EE compliant application servers

like

IBM WebSphere

or

JBoss

. Please check back at my site for ports to other

application servers (see

Resources

on page 31 ).

I typically get examples from people working with other application servers, and then I

put them up on my site (see

Resources

on page 31 ).

I used the Eclipse framework to create the examples in this tutorial. The examples are

easiest to run by downloading Eclipse 2.1 or higher and a J2EE application server

plug in for Eclipse. Eclipse has excellent support for Ant, which facilitates running the

Axis and XDoclet Ant tasks right from the IDE environment.

If you are new to Ant, please read this sample chapter from

Mastering Tomcat on

Developing Web Components with Ant

(written by yours truly). Just read the sections

on Ant development for now.

Also note that the Ant scripts can use XDoclet. You will not need to use this

functionality, but, in case you decide to, please refer to the developerWorks tutorial,

"Enhance J2EE component reuse with XDoclets" (see

Resources

on page 31 ).

What this tutorial covers

This tutorial covers turning EJB components into Web services and has two

step by step examples. The first example uses all primitive types with one simple EJB

component. The second example uses a SessionBean that talks to several EJB

components. All examples ship with a set of Ant build scripts so you can easily create

your own custom solutions by reusing the sample build files.

About the author

Rick Hightower

is a developer who enjoys working with Java technology, Ant, ETTK,

and XDoclet. Rick is currently the CTO of

Trivera Technologies

, a global training,

Service enable EJB SessionBeans with the IBM ETTK

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