public void Save(Guid id, IEnumerable <IEvent> events, int expectedVersion)
{
var lastStoredEvent = Events
.Where(e => e.Id == id)
.OrderByDescending(ev => ev.Version)
.FirstOrDefault();
var lastVersion = lastStoredEvent == null ? -1 : lastStoredEvent.Version;
if (lastVersion != expectedVersion)
{
throw new ConcurrencyException();
}
foreach (var @event in events)
{
var serializedEvent = _eventsSerializer.SerializeEvent(@event);
Events.Add(new EventDescriptor
{
Version = @event.Version,
Id = id,
Data = serializedEvent.Data,
Type = serializedEvent.Type
});
_bus.Send(@event);
}
}
public void Save(AggregateRoot aggregateRoot, int expectedVersion)
{
var events = aggregateRoot.GetUncommittedChanges();
var lastStoredEvent = Events
.Where(e => e.Id == aggregateRoot.Id)
.OrderByDescending(ev => ev.Version)
.FirstOrDefault();
var lastVersion = lastStoredEvent == null ? -1 : lastStoredEvent.Version;
if (lastVersion != expectedVersion)
{
throw new ConcurrencyException();
}
foreach (var @event in events)
{
var serializedEvent = _eventsSerializer.SerializeEvent(@event);
lastVersion = @event.Version;
Events.Add(new EventDescriptor
{
Version = @event.Version,
Id = aggregateRoot.Id,
Data = serializedEvent.Data,
Type = serializedEvent.Type
});
_bus.Send(@event);
}
var snapshottableAggregateRoot = aggregateRoot as SnapshottableAggregateRoot;
if (snapshottableAggregateRoot != null && snapshottableAggregateRoot.ShouldCreateSnapshot())
{
var snapshot = snapshottableAggregateRoot.GetSnapshot();
snapshot.Version = lastVersion;
_snapshotStore.SaveSnapshot(snapshot);
}
}