public static Book NewBookFrom(
BookId id,
BookName bookName,
YearOfPrint yearOfPrint) =>
(Book) new Book().ApplyChange(new BookAdded(id, bookName, yearOfPrint));
private void Apply(BookAdded e)
{
SetAggregateId(e.AggregateId.ToBookId());
_name = e.Name.ToBookName();
_yearOfPrint = e.YearOfPrint.ToYearOfPrint();
}
public static YearOfPrint ToYearOfPrint(this int yearOfPrintInt) => YearOfPrint.YearOfPrintFrom(yearOfPrintInt);