Hibernate-JSF session.get problem

Question

Hello,
I use Hibernate+JSF.
I open Hibernate session for each request and close it when the request is finished.
For each logged user I keep userId, companyId and several more Ids.
I have a userSession instance containing this data as well as several methods to get Hibernate objects related with user. For example, in order to get company object:
  public Company getActiveCompany()
    CompanyDAO companyDAO = new CompanyDAO();
    Company activeCompany = companyDAO.getCompany(activeCompanyId);
    return activeCompany;
  }The problem is araised in screen in which I show companies data.
It seems like Hibernate has a problem of loading the same object more than once.
For example, in Companies screen, the active company of a User is shown as well as a dropdown filled with companies. The dropdown has a converter named: CompanyConverter which returns a Company object for a given company id.
When switching Company on the dropdown a "valueChangeActiveCompany" event is triggered and the new selected Company should be set to the User. The problem is that the Company object was already loaded to show the active Company on the top of the screen, and the data that is extracted from the converter seems to be empty . . .
The code of the valueChanged is:
  public void valueChangeActiveCompany(ValueChangeEvent event)
    activeCompany = (Company)event.getNewValue();  // Here the object is empty . . . 
    log.info("Setting new Active Company: " + activeCompany +
                                        " for user: " + userSession.getUser());   
    try
      userSession.setActiveCompany(activeCompany);
    catch (HibernateException ex)
      FacesUtil.addErrorMessage("setup.company.view.error.changeCompany");
  }  This problem causes the value of the new active company not to be set, therefore it is not possible to switch between active Companies . . .
Why Hibernate behaves weird when loading an object for the second time on the same session ?
Is there a good way of solving this problem ?
Guy.

Answer 1

hi
i had similar problem.
i solved it but i dont know whether its the correct solution.
i placed the magaed bean in the session scope
in the first page i add a new variable and stored that value in the avtionlistener method. when i click on back button in the 3rd page i get the value which i stored in the first page and display the data.
i hope this is ur problem. if this is the problem let me know i can send u the code snippet
thnaks
sreedevi