Fluent Nhibernate with multiple tables

Question

I’m using the Fluent NHibernate to assist the ORM (replacing the manually made . hbm files) with a single class:

User class:

public class Usuario
{
    public virtual int Id { get; set; }
    public virtual string Nome { get; set; }
    public virtual string Login { get; set; }
    public virtual string Senha { get; set; }
    public virtual char Status { get; set; }

}

Mapping of the Class:

public class UsuarioMap : ClassMap<Usuario>
{
    public UsuarioMap()
    {
        Id(c => c.Id);
        Map(c => c.Nome);
        Map(c => c.Login);
        Map(c => c.Senha);
        Map(c => c.Status);
        Table("usuarios");
    }
}

Addition of mapping to Fluent NHibernate

var configMap = Fluently.Configure().Database(configDB).Mappings(c => c.FluentMappings.AddFromAssemblyOf<Mapeamento.UsuarioMap>());

Question: Now I need to add another class (Address, the User instance will have an Address property) and a Vendor class (which is not linked to any other) to Mapping, what this mapping would look like ?

New User Class:

public class Usuario
{
    public virtual int Id { get; set; }
    public virtual string Nome { get; set; }
    public virtual string Login { get; set; }
    public virtual string Senha { get; set; }
    public virtual char Status { get; set; }
    public virtual Endereco EnderecoResidencial { get; set; }
}

Address Class:

public class Endereco
{
    public virtual string Rua { get; set; }
    public virtual string Quadra { get; set; }
    public virtual string Lote { get; set; }
    public virtual string Bairro { get; set; }
    public virtual string CEP { get; set; }
    public virtual string Complemento { get; set; }
    public virtual string PontoReferencia { get; set; }
}

Supplier class:

public class Fornecedor
{
    public virtual string CNPJ { get; set; }
    public virtual string NomeFantasia { get; set; }
    public virtual string RazaoSocial { get; set; }
    public virtual string Descricao { get; set; }
}

Answer 1

Supposing your table of usuario has a FK for the table endereco, you would have something like this:

public class UsuarioMap : ClassMap<Usuario>
{
    public UsuarioMap()
    {
        Id(c => c.Id);
        Map(c => c.Nome);
        Map(c => c.Login);
        Map(c => c.Senha);
        Map(c => c.Status);
        References(c => c.EnderecoResidencial).Column("endereco_id");
        Table("usuarios");
    }
}

Your class endereco must have an ID:

public class Endereco
{
    public virtual int Id { get; set; }
    public virtual char Rua { get; set; }
    public virtual char Quadra { get; set; }
    public virtual char Lote { get; set; }
    public virtual char Bairro { get; set; }
    public virtual char CEP { get; set; }
    public virtual char Complemento { get; set; }
    public virtual char PontoReferencia { get; set; }
}

And its mapping of endereco:

public class EnderecoMap : ClassMap<Endereco>
{
    public EnderecoMap()
    {
        Id(c => c.Id);
        Map(c => c.Rua);
        Map(c => c.Quadra);
        Map(c => c.Lote);
        Map(c => c.Bairro);
        Map(c => c.CEP);
        Map(c => c.Complemento);
        Map(c => c.PontoReferencia); 
        Table("enderecos");
    }
}

I recommend using the LazyLoad() in the mapping of the entity usuario, in order to prevent any time you make a select of one or more usuario, come all Addressee entity. If you want, I edit the response with an example of LazyLoad().

EDIT:

Like the Fornecedor has no relation to any class, would be only "one more" in the Assembly of the Mapeamento.UsuarioMap:

public class FornecedorMap : ClassMap<Fornecedor>
{
    public FornecedorMap()
    {
        Map(c => c.CNPJ);
        Map(c => c.NomeFantasia);
        Map(c => c.RazaoSocial);
        Map(c => c.Descricao);
        Table("fornecedor");
    }
}

EDIT 2:

EXAMPLE OF USE WITH LazyLoad(): On all the maps you want to use LazyLoad(), just add it as example below.

public class UsuarioMap : ClassMap<Usuario>
{
    public UsuarioMap()
    {
        Table("usuarios");
        LazyLoad();
        Id(c => c.Id);
        Map(c => c.Nome);
        Map(c => c.Login);
        Map(c => c.Senha);
        Map(c => c.Status);
        References(c => c.EnderecoResidencial).Column("endereco_id");
    }
}

In this case, when you query a user list, for example:

using (var session = NHibernateSession.OpenSession())
{    
    var listaUsuarios = session.Query<Usuario>();
}

You will have the propriedades of user filled in query and ONLY the entity foreign key Endereco. In case you NEED the entity TODA, just give a Fetch in the entity:

using (var session = NHibernateSession.OpenSession())
{    
     var listaUsuarios = session.Query<Usuario>().Fetch(x=>x.EnderecoResidencial);
}

There besides the properties, you will also have the whole entity you are giving fetch.