public bool RegisterNewBook(Book newBook, Copy copyOfNewBook, int QtyOfCopies) { if(InsertNewBook(newBook)) { for (int a = 0; a < QtyOfCopies; a++) if (!InsertNewCopy(copyOfNewBook)) return false; return true; } return false; }
public bool InsertNewBook(Book newBook) { return true; }
public Copy[] GetAllCopies(Book book) { return new Copy[0]; }