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

AddInventoryCommand

With our repository available, the three InventoryCommand classes can be completed. The first, AddInventoryCommand, is shown as follows:

internal class AddInventoryCommand : NonTerminatingCommand, IParameterisedCommand{    private readonly IInventoryContext _context;    internal AddInventoryCommand(IUserInterface userInterface, IInventoryContext context)                                                             : base(userInterface)    {        _context = context;    }    public string InventoryName { get; private set; }    /// <summary>    /// AddInventoryCommand requires name    /// </summary>    /// <returns></returns>    public bool GetParameters()    {        if (string.IsNullOrWhiteSpace(InventoryName))            InventoryName = GetParameter("name");        return !string.IsNullOrWhiteSpace(InventoryName);    } protected override bool ...