Custom profile selection and custom profile values let you gain finer control over your web application.
The J2EE application server security and application roles used by IBM® WebSphere® Portlet Factory are typically not as granular as your application profiles should be. Profile selection handlers provide a pluggable profile selection mechanism. In addition, WebSphere Portlet Factory can store profile information in and retrieve profile information from a database. This capability is particularly useful when a database of users already exists within your enterprise.
Parent topic: Setting up database storage: wpf7