public void Rollback()
{
if (_memento != null)
{
_settings.RestoreFromMemento(_memento);
}
else
{
throw new InvalidOperationException("The presenter must be initalized before you can call Rollback");
}
}
private ISettingsOriginator RestoreFromParameters(string parameters)
{
//Restore our saved memento
ISettingsMemento memento = _kernel.Get <ISettingsMemento>(new ConstructorArgument("settingsAsString", parameters));
//Restore originator from memento
ISettingsOriginator originator = SettingsOriginatorFactory.Instance.CreateOriginator();
originator.RestoreFromMemento(memento);
return(originator);
}
private ISettingsOriginator RestoreFromCurrentUserSettings()
{
//Grab settings as string
ISettingsService svc = _kernel.Get <ISettingsService>();
//Restore our saved memento
ISettingsMemento memento = _kernel.Get <ISettingsMemento>(new ConstructorArgument("settingsAsString", svc.GetAllSettingsAsXML()));
//Restore originator from memento
ISettingsOriginator originator = SettingsOriginatorFactory.Instance.CreateOriginator();
originator.RestoreFromMemento(memento);
return(originator);
}