public void delete(String bookTitle) { request.delete(bookTitle); }
public void delBooksAndAuthors(String firstName) { request.delBooksAndAuthors(firstName); }
public void update(String bookTitle, String bookGenre, int yearOfPublish, double price) { request.update(bookTitle, bookGenre, yearOfPublish, price); }
public void insertAuthor(String firstNameAuthor, String lastName) { request.insertAuthor(firstNameAuthor, lastName); }
public void insertBook( String bookTitle, String bookGenre, int yearOfPublish, double price, String firstNameAuthor) { request.insertBook(bookTitle, bookGenre, yearOfPublish, price, firstNameAuthor); }
public List<Author> showAuthors() { return request.showAuthors(); }
public List<Books> showBookByAuthor(String bookName) { return request.showBookByAuthor(bookName); }