/// <summary>
/// Adiciona um observer para a entrada.
/// </summary>
/// <param name="observer"></param>
/// <returns>Entrada gerada para o observer.</returns>
public RecordObserverEntry AddObserver(IRecordObserver observer)
{
var entry = new RecordObserverEntry(observer);
entry.Removed += ObserverEntryRemoved;
lock (_observers)
_observers.Add(entry);
return(entry);
}
/// <summary>
/// Remove o observer associado.
/// </summary>
/// <param name="recordObserver">Instancia do observer que será removido.</param>
/// <returns>True se for removido com sucesso.</returns>
public bool RemoveObserver(IRecordObserver recordObserver)
{
if (recordObserver == null)
{
return(false);
}
RecordObserverEntry entry = null;
lock (_recordObserverEntries)
if (_recordObserverEntries.TryGetValue(recordObserver.Uid, out entry))
{
return(false);
}
if (entry != null)
{
_recordObserverEntries.Remove(recordObserver.Uid);
entry.Remove();
return(true);
}
return(false);
}