Mercurial > altnet-hispano

annotate Agendas/trunk/src/Agendas.Domain/EventoNullState.cs @ 104:c5034884c7d7

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refactor para que los estados sean singletons
author jorge.rowies
date Sun, 05 Jun 2011 13:22:36 -0300
parents 23325dddddcc
children 53bcd338542b
rev   line source
101
9bfdd5bf3ad2 Manejo de estados de los Eventos mediante state pattern (primer version)
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1 using AltNetHispano.Agendas.Domain.Exceptions;
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2
9bfdd5bf3ad2 Manejo de estados de los Eventos mediante state pattern (primer version)
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3 namespace AltNetHispano.Agendas.Domain
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4 {
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5 public class EventoNullState : EventoState
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6 {
104
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7 private EventoNullState()
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8 {
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9 }
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10
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11 private static readonly EventoState _instance = new EventoNullState();
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12 public static EventoState GetInstance()
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13 {
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14 return _instance;
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15 }
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16
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17 private const string Descripcion = "NullState";
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18
103
23325dddddcc Persistencia del estado de los eventos
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19 public override void Promover(Evento evento, Accion accion)
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20 {
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21 switch (accion)
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22 {
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23 case Accion.Proponer:
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24 evento.SetEstado(EventoPropuestoState.GetInstance());
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25 evento.AddTrack(new Track(evento, Accion.Proponer));
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26 break;
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27 case Accion.Agendar:
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28 evento.SetEstado(EventoAgendadoState.GetInstance());
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29 evento.AddTrack(new Track(evento, Accion.Agendar));
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30 break;
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31 default:
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32 throw new AccionNoSoportadaException(this.GetType(), accion);
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33 }
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34 }
103
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35
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36 public override string GetDescripcion()
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37 {
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38 return Descripcion;
103
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39 }
101
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40 }
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41 }