public void courseDelete(Course course) {
   hibernateTemplate.delete(course);
 }
 @Override
 @Transactional
 public void delete(Person person) {
   hibernateTemplate.delete(person);
 }
 public void studentDelete(Student student) {
   hibernateTemplate.delete(student);
 }
 @Override
 public void deleteStock(Stock stock) {
   hibernateTemplate.delete(stock);
 }