public void SaveEvents(AggregateRoot eventSourced, int expectedVersion)
{
List<EventDescriptor> eventDescriptors;
if (!_store.TryGetValue(eventSourced.Id, out eventDescriptors))
{
eventDescriptors = new List<EventDescriptor>();
_store.Add(eventSourced.Id, eventDescriptors);
}
else if (eventDescriptors.Last().Version != expectedVersion && expectedVersion != -1)
throw new ConcurrencyException(String.Format("The aggregate has changed since you started. Expected version {0}, Current Version {1}", expectedVersion, eventDescriptors.Last().Version));
var i = expectedVersion;
foreach (var @event in eventSourced.GetUncommitedChanges())
{
i++;
@event.Version = i;
eventDescriptors.Add(new EventDescriptor(eventSourced.Id, @event, i));
//Now that the event has actually been stored, let everyone else know.
_eventBus.Publish(@event);
}
}