private static void Main()
{
//Here's a new supplier for our restaurant.
FoodSupplier supplier = new FoodSupplier("Harold Karstark", "(482) 555-1172", "S Main St. Nowhere, KS");
// Let's store that entry in our database.
SupplierMemory memory = new SupplierMemory(supplier);
memory.Backup();
supplier.Name = "A";
memory.Backup();
supplier.Name = "B";
memory.Backup();
supplier.Name = "C";
Console.WriteLine();
memory.ShowHistory();
Console.WriteLine("\nClient: Now, let's rollback!\n");
memory.Undo();
Console.WriteLine("\n\nClient: Once more!\n");
memory.Undo();
Console.WriteLine("\n\nClient: Once more!\n");
memory.Undo();
}
/// <summary>
/// In the Memento pattern, we need to capture and externalize an object's state so that the object can be
/// restored to that state at a later time. A good example of this is undo/redo operations.
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
//Here's a new supplier for our restaurant
FoodSupplier s = new FoodSupplier();
s.Name = "Harold Karstark";
s.Phone = "(482) 449-1172";
// Let's store that entry in our database.
SupplierMemory m = new SupplierMemory();
m.Memento = s.SaveMemento();
// Continue changing originator
s.Address = "548 S Main St. Nowhere, KS";
// Crap, gotta undo that entry, I entered the wrong address
s.RestoreMemento(m.Memento);
Console.ReadKey();
}
