@Override @Transactional(readOnly = false) public void joinCourse(Customer customer, Course course) { course = courseDao.getBySid(course.getSid()); CustomerSubscription subscription = new CustomerSubscription(); subscription.setCourse(course); subscription.setCustomer(customer); customerSubscriptionDao.save(subscription); }
@Override @Transactional(readOnly = true) public List<Customer> findByCourse(Course course) { return customerSubscriptionDao.findCustomersByCourse(course); }
@Override @Transactional(readOnly = true) public List<Course> findCourses(Customer customer) { return customerSubscriptionDao.findCoursesByCustomer(customer); }