books_node = new DefaultMutableTreeNode("Books");
authors_node = new DefaultMutableTreeNode("Authors");
reservations_node = new DefaultMutableTreeNode("Reservations");
//call decorator pattern
SearchAll aux = new SearchAll();
products_node = aux.search(this.window_login.getProducts());
videos_node = new SearchVideoDecorator(aux).search(this.window_login.getVideos());
books_node = new SearchBookDecorator(aux).search(this.window_login.getBooks());