Hi Thank you very much for your experties.

First off, with lazy loading disabled, I experience no problem.

When i enable lazy loading, I can't seem to access private fields directly. I tried mapping with both the property way:

<id name="Id" access="nosetter.camelcase-underscore" type="Guid">
<generator class="assigned"/>
</id>

and the field way:

<id name="_id" column="Id" access="field" type="Guid">
<generator class="assigned"/>
</id>

And in both cases, when I try to access private field in the same class's static method, I get a 0. I don't get exception or any error. It just gives me a 0 (default value of GUID).

The correct value (retreived from DB) is only shown if I use the getter property.

Also, writing into field is the same thing. The value only gets persisted if I write into a setter property, not when I use field directly.

Why is this happening? When NHibernate populates my object lazily, shouldn't it populate the field too?

There must be something I am missing....

public class DbUser : BaseNHibernateClass<DbUser, Guid>
{
private Guid _id;
private string _name;
private Profile _info;

public virtual Guid Id {
get { return _id; }
}

public virtual string Name {
get { return _name; }
set { _name = value; }
}

public static void ConfirmUser(Guid id, string name, Sex sex, DateTime birthdate)
{
DbUser me = NHibernateSession().Load(typeof(DbUser), id);

string k = me._id.ToString(); // does not work. i.e. k = "0000..
me._name = name; // does not work. _name is not persisted when SaveOrUpdate() is called.

string p = me.Id.ToString(); // works.
me.Name = name; // works. Name is persisted when SaveOrUpdate() is called.

me._info = Profile.Create(id, sex, birthdate);
NH.NHibernateSession().SaveOrUpdate(me);
}
.................

}

public class NH
{
/// <summary>
/// Exposes the ISession used within the DAO.
/// </summary>
private static ISession NHibernateSession() {
session = sessionFactory.OpenSession()
return session;
}
.............
}

I don't believe you can proxy fields, only methods/properties. The properties must be marked virtual and you must provide at least a protected default .ctor.
Mike

Hi!

You may use ISession.Get() instead of ISession.Load() - it will try to return "real object" insead of proxy (but it may return proxy, if this object was already requested before via lazy association).
The other important point - you should "initialize" proxy before trying to access fields, as before "initialization" they definetely will be "empty" - after initialization they will be filled from DB. Proxy is a special subclass of your POCOs - it intercept almost all object access (and initialize proxy before proceeding with your "method call/property accessor call") - but it can't intercept direct field access of course.

Simple way to initialize "possible" proxy (it won't throw exception if you pass real object - the one that don't need any special initialization) is NHibernateUtil.Initialize(object possibleProxyOrCollection) method.