public int insertAuthor(AuthorDTO author)
 {
     AuthorDAO dao = new AuthorDAO();
     return dao.insertAuthor(author);
 }
 public int deleteAuthor(AuthorDTO author)
 {
     AuthorDAO dao = new AuthorDAO();
     return dao.deleteAuthor(author);
 }
 public int insertAuthor(AuthorDTO author)
 {
     return 1;
 }
 public int updateAuthor(AuthorDTO author)
 {
     return 1;
 }
 public int deleteAuthor(AuthorDTO author)
 {
     return 1;
 }