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Overview of the process
The steps we will follow in this tutorial to build the DemoBean EJB are:- 1) Install an EJB server.
These really are the steps required to implement just about any EJB
and although with all that is written about EJB's so far it seems to be
a lot more complex the complexity is for the server/container provider
to worry about not I repeat NOT the EJB provider.
f the EJB architecture, see the Enterprise JavaBeans White Paper. This tutorial is not a replacement for reading the Enterprise JavaBeans specification. Rather, it is designed to enhance your understanding of the specification by providing concrete examples, and step-by-step guidelines for building and using Enterprise JavaBeans. In the example code we have referred to and used examples initially from the WebLogic Tengah server, and as further implementations come along we will add these to the tutorial. This is part #1 This tutorial introduces a stateless session bean example, which is
functionally equivalent to the perennial "Hello world" program. It is the
simplest of all enterprise beans to write, and as such, allows us to demonstrate
the model, with the minimum complexity. Further parts of this paper will
address the other bean type, that is, stateful session bean Managed Entity
and Container managed entity beans. It is our intention to include tutorial
details on other technologies, such as SQLJ, when they are available, and
as time and resources permit.
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