public int updatePublisher(PublisherDTO publisher)
 {
     return 1;
 }
 public int insertPublisher(PublisherDTO publisher)
 {
     return 1;
 }
 public int deletePublisher(PublisherDTO publisher)
 {
     return 1;
 }
 public int updatePublisher(PublisherDTO publisher)
 {
     PublisherDAO dao = new PublisherDAO();
     return dao.updatePublisher(publisher);
 }
 public int insertPublisher(PublisherDTO publisher)
 {
     PublisherDAO dao = new PublisherDAO();
     return dao.insertPublisher(publisher);
 }
 public int deletePublisher(PublisherDTO publisher)
 {
     PublisherDAO dao = new PublisherDAO();
     return dao.deletePublisher(publisher);
 }