public void add() {
   studentFacade.create(this.student);
   if (!userManager.loggedIn()) userManager.setStudent(student);
   else
     try {
       FacesContext.getCurrentInstance()
           .getExternalContext()
           .dispatch("studentList.xhtml?add=" + student.getStudentId());
     } catch (IOException ex) {
       Logger.getLogger(StudentManager.class.getName()).log(Level.SEVERE, null, ex);
     }
 }