Use of JSF

	public Integer addEmployee(EmployeeEntity employee) {

		EntityManagerFactory emf = null;
		EntityManager em = null;
		try {
			emf = Persistence.createEntityManagerFactory("Employee_Mgmt");
			em = emf.createEntityManager();
			EntityTransaction et = em.getTransaction();

			et.begin();
			em.persist(employee);
			et.commit();

			return employee.getRegId();
		} finally {
			if (em != null)
				em.close();
		}
	}