Operating Systems: i5/OS
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Task overview: Using enterprise beans in applications
This article provides an overview of the tasks perform
to use enterprise beans in a J2EE application.
Procedure
- Design
a J2EE application and the enterprise beans that it needs. For
links to design information that is specific to enterprise beans, see Data access: Resources for learning .
- Develop any enterprise
beans that your application will use.
- Prepare for assembly. For your EJB 2.x-compliant entity beans, decide on an appropriate access intent policy.
- Assemble the beans
into one or more EJB modules using one of the assembly tools. This
process includes setting security.
For your EJB 2.x-compliant entity beans, you might also want to designate container-managed persistence (CMP)
sequence groups.
- Assemble the modules
into a J2EE application using the assembly tool.
- For a given application server, update
the EJB container configuration if needed for the application to be
deployed, and determine if you want to batch
commands or defer commands for
container-managed persistence.
- Deploy the application in
an application server.
- Test the modules.
- 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 the
Assembly Service Toolkit.
- Manage other aspects
of the J2EE application.
- Update the module
and redeploy it using one of the assembly tools.
- Tune the performance of the application. See Best practices for developing enterprise beans.
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Enterprise beans
Developing enterprise beans
Using access intent policies
EJB modules
Assembling EJB modules
EJB containers
Managing EJB containers
Deploying EJB modules
Enterprise beans back up and recovery - best practices
Enterprise beans: Resources for learning
EJB method Invocation Queuing
Securing enterprise bean applications
Enterprise bean and EJB container troubleshooting tips
Enterprise bean cannot be accessed from a servlet, a JSP file, a stand-alone
program, or another client
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