@Transactional(readOnly = false, propagation = Propagation.REQUIRED)
public void save(Book book) {
dao.save(book);
}
@Transactional(readOnly = true)
public List<Book> getBooks() {
return dao.getBooks();
}
@Transactional(readOnly = false, propagation = Propagation.REQUIRED)
public void deleteAll() {
dao.deleteAll();
}
