This article provides an overview of the tasks you must
perform to use enterprise beans in a Java based
application.
About this task
Use the following steps to develop an Enterprise JavaBeans (EJB) application:
Procedure
- EJB 3.x beans: Design a Java Platform, Enterprise Edition (Java EE) application and the enterprise beans
that it needs.
- EJB 2.x beans: Design a Java 2 Platform, Enterprise Edition (J2EE) application
and the enterprise beans that it needs.
- Develop any enterprise beans that your application uses. See the topic Developing enterprise beans.
- Prepare for assembly. For your EJB 2.x-compliant entity
beans decide on an appropriate access intent policy. For
more information about using access intent, see the topic, Using access
intent policies for EJB 2.x entity beans.
- Assemble the beans into one or more EJB modules using one
of the assembly tools. See the topic
Assembling EJB modules.
This process includes
setting security. See the topic Securing enterprise bean applications
to learn more about setting the security.
For your EJB 2.x-compliant entity beans, you might also want to
designate container-managed persistence (CMP) sequence groups. See
the topic Setting the run time for CMP sequence groups.
- EJB 3.x beans: Assemble the beans into one or more
EJB 3.x modules using one of the assembly tools. See the
topic Assembling EJB 3.x modules.
- Assemble the modules into a Java EE
application using the assembly tool.
- Update the EJB container configuration for a given application
if needed for the application to be deployed. See the topic Managing
EJB containers.
- Update the EJB container configuration for a given application
server if needed for the application to be deployed, and determine
if you want to batch commands or defer commands for container-managed
persistence. See the topics Managing EJB containers, Setting
the run time for batched commands with JVM arguments, and Setting
the run time for deferred create with JVM arguments.
- Deploy the application in an application server. See
the topic Deploying EJB modules.
- Test the modules.
- As needed, debug problems with the container. For more information
see the topic Enterprise bean and EJB container troubleshooting tips.
- Debug access problems. See the topic Enterprise bean cannot be
accessed from a servlet, a JSP file, a stand-alone program, or another
client.
- Assemble the production application using one of the assembly
tools
- Deploy the application to a production environment.
- Manage the application:
- Manage installed EJB modules. After an application
has been installed, you can manage its EJB modules individually through
assembly tools.
- Manage other aspects of the Java application. See the topic Deploying and
administering enterprise applications
- Update the module and redeploy it using one of the assembly
tools.
- Tune the performance of the application. See the topic
Best practices for developing enterprise beans.