/// <summary>
/// Get the key value from the owning entity instance, usually the identifier, but might be some
/// other unique key, in the case of property-ref
/// </summary>
public object GetKeyOfOwner(object owner, ISessionImplementor session)
{
EntityEntry entityEntry = session.PersistenceContext.GetEntry(owner);
if (entityEntry == null)
{
return(null); // This just handles a particular case of component
}
// projection, perhaps get rid of it and throw an exception
if (foreignKeyPropertyName == null)
{
return(entityEntry.Id);
}
else
{
// TODO: at the point where we are resolving collection references, we don't
// know if the uk value has been resolved (depends if it was earlier or
// later in the mapping document) - now, we could try and use e.getStatus()
// to decide to semiResolve(), trouble is that initializeEntity() reuses
// the same array for resolved and hydrated values
object id;
if (entityEntry.LoadedState != null)
{
id = entityEntry.GetLoadedValue(foreignKeyPropertyName);
}
else
{
id = entityEntry.Persister.GetPropertyValue(owner, foreignKeyPropertyName, session.EntityMode);
}
// NOTE VERY HACKISH WORKAROUND!!
IType keyType = GetPersister(session).KeyType;
if (!keyType.ReturnedClass.IsInstanceOfType(id))
{
id = keyType.SemiResolve(entityEntry.GetLoadedValue(foreignKeyPropertyName), session, owner);
}
return(id);
}
}
