/// <summary>
/// Ends the current registration process.
/// </summary>
/// <returns></returns>
public static ModelRegistry EndRegistration()
{
var completed = _current;
_current = null;
Monitor.Exit(_lock);
return(completed);
}
/// <summary>
/// Begins a new registration process.
/// </summary>
public static void BeginRegistration()
{
if (_current != null)
{
throw new InvalidOperationException("An existing registration context is already open.");
}
Monitor.Enter(_lock);
_current = new ModelRegistry();
_current._extFactory = new ExtensionFactory();
}