The framework documentation is written for active web developers and assumes a working knowledge about how Java web applications are built. For more about the underlying nuts and bolts, see the Key Technologies Primer.
In processing a request, the framework utilizes three key class types: Actions, Interceptors, and Results, which are configured using one or more XML documents (or Java 5 annotations).
Creating Resources
Writing Validators
Writing Type Converters
Writing Interceptors
Writing Actions
Writing Results