Java Reference
In-Depth Information
J2EE
client-layer components such as applets or rich
GUI
clients. We touched on
support for web layer development with web modules earlier in this chapter.
Let's get closer to
EJB
support in
IDEA
.
Exploring the full extent of the
EJB
and other
J2EE
technologies is beyond the
scope of this book, and we're going to assume that you have some degree of famili-
arity with those technologies. The following material focuses on
IDEA
's support
for working with
J2EE
applications.
11.2.1
Working with EJB modules
The
EJB
module is extension of the Java module and is created separately for a
group of related
EJB
s and their deployment descriptors. There is one
EJB
stan-
dard deployment descriptor (ejb-jar.xml) and a number of application server-
specific ones—for instance, weblogic-ejb-jar.xml and weblogic-cmp-rdbms-ejb-
jar.xml for the WebLogic application server. Deployment descriptors are
XML
documents describing
EJB
s and
EJB
module properties. They're designed to be
used for deploying
J2EE
components.
Creating a new EJB module
Extending your tool functionality, let's add a new
EJB
module. Start by following
these steps:
Select
File | New Module
from the main menu.
1
The first dialog in the
New Module
wizard appears and prompts you to
select the type of module to create. Click the
EJB
Module option, and
then click
Next
.
2
The next dialog prompts you to select a module name and a module
content root. Enter
ACMEEjb
as the module name, and specify the module
content root to be a sibling directory to the currency converter's Java
module (for example, if the module you've been working on can be
found in the
C
:\Projects\CurrencyConverter directory, make this module
use the
C
:\Projects\
ACMEE
jb directory). Click
Next
.
3
The next dialog prompts you to specify a source directory for the
EJB
module. This is where the source files for any custom Java classes will
reside. The default suggestion of
src
is fine, so click
Next
.
4
The next dialog prompts you to specify a compiler output path for the
for the
EJB
module. Accept the name suggested by
IDEA
, and click
Next
to continue.
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