Hello,
I'm using a seam-gen generated application and I try to force the login when
accessing the application because I always need a logged user in the session
context (all data managed is linked to this logged user).
So I'm redirecting to login.seam instead of home.seam in index.xhtml but, when
the login page is displayed I got this error:
javax.faces.el.EvaluationException: Cannot get value for expression
'#{certificationList.firstResult}'
(...)
org.jboss.seam.RequiredException: In attribute requires non-null value:
myCertifications.loggedCollaborateur
"certificationList" is the datamodel I'm using in another page in the
application (not login.xhtml). It's used for a datatable.
In the factory method of this datamodel, I'm using the "loggedCollaborateur" to
restrict the list so it cannot be null, seam is right.
But why is seam calling this "#{certificationList.firstResult}" before any
login ?
By the way, here's my authenticator :
@Out(value="loggedCollaborateur", scope=ScopeType.SESSION)
Collaborateur loggedCollaborateur;
public boolean authenticate() {
log.info("authenticating #0",
Identity.instance().getUsername());
if(em == null){log.error("Could not authenticate because
EntityManager null."); return false;}
List users = em.createQuery("select u from User u where
login_name=:username and password=:password")
.setParameter("username", Identity.instance().getUsername())
.setParameter("password", Identity.instance().getPassword())
.getResultList();
if(users.size() == 0) {
return false;
} else {
User user = users.get(0);
//fetch the collaborateur for this user
List colabs = em.createQuery("select c from
Collaborateur where c.user_id=:userId")
.setParameter("userId", user.getUserId())
.getResultList();
loggedCollaborateur = colabs.get(0);
identity.addRole("admin");
}
return true;
}
And in the bean(s) using this outjected Collaborateur Object, I have:
@In(value="loggedCollaborateur")
Collaborateur loggedCollaborateur;
and then using this object to restrict my data.
Am I doing something wrong here ?
Lots of things wrong ?
Why is there this .firstResult call and how can I avoid the null value check
before any login ?
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http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4050106#4050106
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