private static void DeleteOrphans(System.Type entityName, IPersistentCollection pc, ISessionImplementor session)
{
ICollection orphans;
if (pc.WasInitialized) // can't be any orphans if it was not initialized
{
CollectionEntry ce = session.GetCollectionEntry(pc);
orphans = ce == null ? CollectionHelper.EmptyCollection :
ce.GetOrphans(entityName, pc);
}
else
{
orphans = CollectionHelper.EmptyCollection;
}
foreach (object orphan in orphans)
{
if (orphan != null)
{
session.Delete(orphan);
}
}
}
/// <summary>
/// Associate the collection with the given session.
/// </summary>
/// <param name="session"></param>
/// <returns>false if the collection was already associated with the session</returns>
public bool SetCurrentSession(ISessionImplementor session)
{
if (session == this.session
// NH: added to fix NH-704
&& session.GetCollectionEntry(this) != null
)
{
return false;
}
else
{
if (IsConnectedToSession)
{
throw new HibernateException("Illegal attempt to associate a collection with two open sessions");
}
else
{
this.session = session;
return true;
}
}
}