Hands-On Design Patterns with C# and .NET Core

UpdateQuantityCommand

UpdateQuantityCommand is very similar to AddInventoryCommand and its source is as follows:

internal class UpdateQuantityCommand : NonTerminatingCommand, IParameterisedCommand{    private readonly IInventoryContext _context;     internal UpdateQuantityCommand(IUserInterface userInterface, IInventoryContext context)                                                                             : base(userInterface)    {        _context = context;    }    internal string InventoryName { get; private set; }    private int _quantity;    internal int Quantity { get => _quantity; private set => _quantity = value; }    ...}

Like AddInventoryCommand, the UpdateInventoryCommand command is a non-terminating command with parameters. Therefore, it extends the NonTerminatingCommand base class and implements the IParameterisedCommand interface. ...