I am confused. I am developing a web application using GWT + Ext GXT. I have successfully added Spring Security to the web application and now need to be able to secure and get access to the currently logged in user down in my business layer.

For my business layer i have a separate Maven project with its own spring-beans.xml configuration and its own Singleton Factory for looking up beans. It looks up the configuration from its class path.

How do i get the user information to propagate down from the web app to the application layer if they are separate contexts? And how do i get a handle to the current Spring context?