/// <summary>
 /// Update the informations of a book in the database
 /// </summary>
 /// <param name="book">The book to be updated</param>
 /// <returns>A model of the updated book</returns>
 public Book UpdateBook(HBSISLibraryWCF.ServiceEntities.Book book)
 {
     return(BookBLL.UpdateBook(book));
 }
 /// <summary>
 /// Insert a new book in the database
 /// </summary>
 /// <param name="book">The book  to be inserted</param>
 /// <returns>A model of the inserted book</returns>
 public Book InsertBook(HBSISLibraryWCF.ServiceEntities.Book book)
 {
     return(BookBLL.InsertBook(book));
 }