public static OldDeleteState GetInstance()
{
if (_instance == null)
{
lock (SyncRoot)
{
if (_instance == null)
{
_instance = new OldDeleteState();
}
}
}
return(_instance);
}
public override void Delete(APersistenceObject obj)
{
obj.PreviousState = this;
obj.State = OldDeleteState.GetInstance();
}
internal void MarkDelete()
{
_previousState = _state;
_state = OldDeleteState.GetInstance();
}