Fluent NHibernate Map to private/protected Field that has no exposing Property
- by Jon Erickson
I have the following Person and Gender classes (I don't really, but the example is simplified to get my point across), using NHibernate (Fluent NHibernate) I want to map the Database Column "GenderId" [INT] value to the protected int _genderId field in my Person class. How do I do this?
FYI, the mappings and the domain objects are in separate assemblies.
public class Person : Entity
{
    protected int _genderId;
    public virtual int Id { get; private set; }
    public virtual string Name { get; private set; }
    public virtual Gender Gender
    {
        get { return Gender.FromId(_genderId); }
    }
}
public class Gender : EnumerationBase<Gender>
{
    public static Gender Male
        = new Gender(1, "Male");
    public static Gender Female
        = new Gender(2, "Female");
    private static readonly Gender[] _genders
        = new[] { Male, Female };
    private Gender(int id, string name)
    {
        Id = id;
        Name = name;
    }
    public int Id { get; private set; }
    public string Name { get; private set; }
    public static Gender FromId(int id)
    {
        return _genders.Where(x => x.Id == id).SingleOrDefault();
    }
}