All Examples  All EJB Examples

Package examples.ejb.subclass

Enterprise JavaBean subclass example
packages and classes

• Client applications
  Client (client application documentation and source)

  Deployment

  ejb-jar.xml

  weblogic-ejb-jar.xml

  Interfaces

  Parent (remote interface documentation and source)

  Child (remote interface documentation and source)

  ChildHome (home interface documentation and source)

  Server (EJB)

  ParentBean (EJBean documentation and source)

  ChildBean (EJBean documentation and source)

about this example

This example demonstrates subclassing an Enterprise JavaBean. Please run this example before attempting to create your own Enterprise JavaBeans, as it will show you the different steps involved.

The example is a stateless session EJB called ChildBean that extends the ParentBean class.

The example demonstrates:

• Usage of a session EJBean
• Using subclassing to simplify related bean classes
• ParentBean class contains methods that are either unique to the Parent class or that are overloaded by methods in the ChildBean class

1. Creates a ChildBean
2. Calls a method that's overloaded by the ChildBean class
3. Calls a method that's inherited from the ParentBean class
4. Calls a method that only exists in ChildBean
5. Removes ChildBean

how to use this example

To get the most out of this example, first read through the source code files. Start with the XML deployment files to find the general structure of the EJBs, which classes are used for the different objects and interfaces, then look at the client code see how the application works.

This example is shipped "pre-built"; you can either run it as shipped, or build the example and run it to test that you are able to successfully build and run EJBeans. See Building Enterprise JavaBeans examples for more information.

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Last updated 03/28/2000