public void Ship()
{
if (this.ShippingStatus.Result != ShippingResult.Unshipped)
{
throw new InvalidOperationException($"Unable to ship an {nameof(Order)} with status {this.ShippingStatus}.");
}
this.ShippingStatus = new ShippingStatus(Clock.Now, ShippingResult.Shipped);
}
public void CancelShipment()
{
if (this.ShippingStatus.Result != ShippingResult.Unshipped)
{
throw new InvalidOperationException($"Unable to cancel shipment of an {nameof(Order)} with status {this.ShippingStatus}.");
}
this.ShippingStatus = new ShippingStatus(Clock.Now, ShippingResult.Cancelled);
}
public Order(OrderDescription description)
{
// Note how the domain constraints are enforced on construction
// More specific constraints (such as the contents of OrderDescription) have been enforced on construction of the respective types
this.Id = IdGenerator.Current.CreateId();
this.CreationDateTime = Clock.Now;
this.Description = description ?? throw new ArgumentNullException(nameof(description));
this.ShippingStatus = new ShippingStatus(this.CreationDateTime, ShippingResult.Unshipped);
}