/// <summary>
/// Get the current state of the entity as known to the underlying
/// database, or null if there is no corresponding row
/// </summary>
public object[] GetDatabaseSnapshot(object id, IEntityPersister persister)
{
EntityKey key = new EntityKey(id, persister, session.EntityMode);
object cached;
if (entitySnapshotsByKey.TryGetValue(key, out cached))
{
return cached == NoRow ? null : (object[])cached;
}
else
{
object[] snapshot = persister.GetDatabaseSnapshot(id, session);
entitySnapshotsByKey[key] = snapshot ?? NoRow;
return snapshot;
}
}