- Required Session Bean and server restart / redeploy

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- Required Session Bean and server restart / redeploy

- Required Session Bean and server restart / redeploy

2007-07-14 - By damianharvey

Back
I have a UserProfile Bean that I populate in the Authenticator method when a
User successfully logs in. I then use this Bean throughout my app for any User
related data.

My Authenticator class outjects the UserProfile like this:
@(protected)(required=true, scope=SESSION)
| UserProfile userProfile;
My UserProfile bean is annotated with @(protected)(SESSION).
My other classes inject the UserProfile like this:
@(protected) UserProfile userProfile;

So far so good and this works without problem.

I do however have an issue when the server restarts, the app gets redeployed or
the session times out. After one of these events, if the user attempts to
navigate to a page backed by a Bean that has injected the UserProfile, the app
redirects to the login page. All good, but the logs spit out the following
exception (that is nicely swallowed by Seam):
javax.el.ELException: org.jboss.seam.RequiredException: @(protected) attribute requires
non-null value: authenticator.userProfile

This makes me think that I'm not doing this in the correct way. What do you
fellas think?

I've looked at the Wiki example and it puts the User bean directly into the
Session context with Contexts.getSessionContext().set... Is this the preferred
way of doing it? Can anyone recommend a better approach?

Thanks,

Damian.

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