private async Task <T> RehydrateWithMemento(Guid sourceId, IMemento memento, CancellationToken cancellationToken)
{
IEnumerable <IDomainEvent> domainEvents = await
_eventStore.LoadEvents <T>(sourceId, memento.Version, cancellationToken).ConfigureAwait(false);
return(_mementoEntityFactory.Invoke(sourceId, memento, domainEvents));
}
public static Task <IEnumerable <IDomainEvent> > LoadEvents <T>(
this ISqlEventStore eventStore,
Guid sourceId)
where T : class, IEventSourced
{
if (eventStore == null)
{
throw new ArgumentNullException(nameof(eventStore));
}
return(eventStore.LoadEvents <T>(sourceId, default(int), CancellationToken.None));
}
private async Task <T> FindSource(
Guid sourceId, CancellationToken cancellationToken)
{
IMemento memento = null;
if (_mementoStore != null && _mementoEntityFactory != null)
{
memento = await _mementoStore
.Find <T>(sourceId, cancellationToken)
.ConfigureAwait(false);
}
IEnumerable <IDomainEvent> domainEvents = await _eventStore
.LoadEvents <T>(sourceId, memento?.Version ?? 0, cancellationToken)
.ConfigureAwait(false);
return
(memento == null
? domainEvents.Any()
? _entityFactory.Invoke(sourceId, domainEvents)
: default(T)
: _mementoEntityFactory.Invoke(sourceId, memento, domainEvents));
}