how get user roles from database und use it in seam

23. Apr 2008, 11:49 CET | Link Kevin Trupke

Hello,

im a new user of the seam framework and it works fine.

Now I wonna add different sites for different roles. But i dont know how i read out this roles from my database.

I ve a table with id, username, password and role. I ve 4 different roles: admin, lender, borrower and caretaker.

The aim is to get out the role for each member of my site and set restrictions p e.

I use the AthenticatorAction class from the seam booking example. Its possible to compare username and pasword from login and password.

code:

package test.session;

import static org.jboss.seam.ScopeType.SESSION;

import java.util.List;

import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Out;

import de.uni_leipzig.wifa.iwi.handapparat.entity.User;

@Stateless
@Name("authenticator")
public class AuthenticatorAction implements Authenticator
{
   @PersistenceContext 
   private EntityManager em;
   
   @Out(required=false, scope = SESSION)
   private User user;
   
   public boolean authenticate()
   {
      List results = em.createQuery("select u from User u where u.username=#{identity.username} and u.password=#{identity.password}")
            .getResultList();
      
      if ( results.size()==0 )
      {
         return false;
      }
      else
      {
         user = (User) results.get(0);
         return true;
      }
   }
}

If there were help, i would be happy. THX Kevin