Enhancing Portal Applications 
This section describes various options for enhancing your portal applications, and includes the following:
How to control access to portal components and services via the portal security zones
How to enable internationalization of the portal applications by creating resource bundles that hold all language- or country-specific resources
How to customize storage of your portal content in the persistent cache provided by the portal
How to create and run portal components in the form of JSP pages
How to create Web services from existing components, such as enterprise Java beans or Java classes
Integrating with Java EE Applications
How to integrate portal components and services with the SAP Java EE engine
How to implement state management in portal applications