public void Store(AggregateRoot aggregate)
{
if (aggregate == null)
{
throw new ArgumentNullException(nameof(aggregate));
}
var eventStream = new EventStream();
GenerateId(eventStream, aggregate);
documentSession.Store(eventStream);
aggregate.SetId(eventStream.Id);
var eventStreamAndAggregateRoot = new EventStreamAndAggregateRoot(eventStream, aggregate);
unitOfWork.Add(eventStreamAndAggregateRoot);
entitiesByKey.Add(eventStream.Id, eventStreamAndAggregateRoot);
}
public TAggregate Load <TAggregate>(string id) where TAggregate : AggregateRoot
{
if (id == null)
{
throw new ArgumentNullException(nameof(id));
}
if (entitiesByKey.TryGetValue(id, out EventStreamAndAggregateRoot unitOfWorkInstance))
{
return((TAggregate)unitOfWorkInstance.AggregateRoot);
}
EventStream stream = documentSession.Load <EventStream>(id);
if (stream != null)
{
TAggregate instance;
// attempt to call default constructor
// if none found, create uninitialized object
ConstructorInfo ctor =
typeof(TAggregate).GetConstructor(
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
null,
Type.EmptyTypes,
null);
if (ctor != null)
{
instance = (TAggregate)ctor.Invoke(null);
}
else
{
instance = (TAggregate)FormatterServices.GetUninitializedObject(typeof(TAggregate));
}
instance.LoadFromHistory(stream.History);
var eventStreamAndAggregateRoot = new EventStreamAndAggregateRoot(stream, instance);
unitOfWork.Add(eventStreamAndAggregateRoot);
entitiesByKey.Add(id, eventStreamAndAggregateRoot);
return(instance);
}
return(null);
}