I am creating a sample application with the springframework. I use Acegi or Spring security as the security framework. On this blog I have multiple items that relate to acegi. I think more will come. This one is about a
Springframework Acegi principal customization and events
Acegi is the security component for springframework. Since Acegi works with interfaces, extending the framework is easy. There are some good abstract classes you can extend as well. Todays blog deals with customizing the UserDetails class. This is an interface