Instead of creating a PJC completely by yourself, you can use Oracle's Java
development tool, Oracle JDeveloper 10g. JDeveloper includes a Pluggable
Java Components Wizard that can access all of the Forms component classes. Use
the wizard to choose the class of the Forms component that you want to customize,
and JDeveloper generates the skeleton code that extends the IView
interface. All you have to do is add your own code to the file, defining the
functionality you want, and include the file in your Forms codebase.
For more information on the Pluggable Java Components Wizard, see the JDeveloper Online help.