authentication / state beans

I have seen some references to an Authentication and found this
documentation on the open-AMF state-beans

state-bean
To use state-bean you must use the "AdvancedGateway".

State Beans are used to pass state between Service calls. A state bean is
just a simple Java Bean that is stored in the web container's Session or
Application for you. All you have to do to use state-beans is create a
simple java bean, make it the last parameter of your method, and then
configure the openamf-config.xml file.



I see the authentication class has no methods or properties, if I wanted to
utilize a state bean for authentication purposes would I :

1) create a credentials object with a Boolean loggedIn = flase
2) Log the user in on the server and get the credentials object from the
session and set loggedIn = true
3) Make sure I pass this loggedIn object in every service call (or is this
just stored in the session until I need it again ?)

This issue I have is I want to authenticate a user and then know if the user
is authenticated from within a EJB Session bean.

Grant


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