public int updateAuthorOfBook(AuthorOfBookDTO authorOfBook)
 {
     AuthorOfBookDAO dao = new AuthorOfBookDAO();
     return dao.updateAuthorOfBook(authorOfBook);
 }
 public List<AuthorOfBookDTO> getAuthorListByIsbn(String isbn)
 {
     AuthorOfBookDAO dao = new AuthorOfBookDAO();
     return dao.getAuthorListByIsbn(isbn);
 }
 public int insertAuthorOfBook(AuthorOfBookDTO authorOfBook)
 {
     AuthorOfBookDAO dao = new AuthorOfBookDAO();
     return dao.insertAuthorOfBook(authorOfBook);
 }
 public int deleteAuthorOfBook(AuthorOfBookDTO authorOfBook)
 {
     AuthorOfBookDAO dao = new AuthorOfBookDAO();
     return dao.deleteAuthorOfBook(authorOfBook);
 }