private EmployeeHistoric getEmployee(ITeacher teacher) throws ExcepcaoPersistencia {
private IEmployeeHistoric getEmployee(ITeacher teacher) throws ExcepcaoPersistencia {
	    private EmployeeHistoric getEmployee(ITeacher teacher) throws ExcepcaoPersistencia {	        IPersistentEmployee employeeDAO = new EmployeeOJB();	        IEmployee employee = employeeDAO.readByNumber(teacher.getTeacherNumber());	        employee.setHistoricList(employeeDAO.readHistoricByKeyEmployee(employee.getIdInternal()	                .intValue()));	        employee.fillEmployeeHistoric();	        return employee.getEmployeeHistoric();	    }