public static Location Create(LocationId id, City city, Country country)
{
if (id is null)
{
throw new ArgumentNullException(nameof(id), "Location without unique identifier cannot be created.");
}
if (city is null)
{
throw new ArgumentNullException(nameof(city), "Location without a city cannot be created.");
}
if (country is null)
{
throw new ArgumentNullException(nameof(country), "Location without a country cannot be created.");
}
var location = new Location();
location.Apply(new Events.LocationCreated
{
Id = id,
City = city,
Country = country
});
return(location);
}
private void When(object @event)
{
switch (@event)
{
case Events.LocationCreated e:
Id = new LocationId(e.Id);
City = e.City;
Country = e.Country;
break;
case Events.CountryChanged e:
Country = Country;
break;
case Events.CityChanged e:
City = e.City;
break;
case Events.LocationDeleted e:
Id = new LocationId(e.Id);
break;
}
}
