protected void ApplyEvent(SourcedEvent evnt)
{
if (evnt.EventSourceId != SourcedEvent.UndefinedEventSourceId)
{
var message = String.Format("The {0} event cannot be applied to event source {1} with id {2} " +
"since it was already owned by event source with id {3}.",
evnt.GetType().FullName, this.GetType().FullName, EventSourceId, evnt.EventSourceId);
throw new InvalidOperationException(message);
}
if (evnt.EventSequence != SourcedEvent.UndefinedEventSequence)
{
// TODO: Add better exception message.
var message = String.Format("The {0} event cannot be applied to event source {1} with id {2} " +
"since the event already contains a sequence {3} while {4} was expected.",
evnt.GetType().FullName, this.GetType().FullName, EventSourceId, evnt.EventSequence, SourcedEvent.UndefinedEventSequence);
throw new InvalidOperationException(message);
}
evnt.EventSourceId = EventSourceId;
evnt.EventSequence = Version + 1;
// First handle event. This to support the set of the
// Id property for the first event. If we first Append
// the event to the event stream, the handler cannot set
// the Id property anymore.
HandleEvent(evnt);
_uncommittedEvents.Append(evnt);
OnEventApplied(evnt);
}
private void SaveEvent(SourcedEvent evnt, Guid eventSourceId, SQLiteTransaction transaction)
{
if (evnt == null || transaction == null) throw new ArgumentNullException();
using (var dataStream = new MemoryStream())
{
var bag = _converter.Convert(evnt);
var formatter = new BinaryFormatter();
formatter.Serialize(dataStream, bag);
var data = dataStream.ToArray();
using (var cmd = new SQLiteCommand(Query.InsertNewEventQuery, transaction.Connection))
{
cmd.SetTransaction(transaction)
.AddParam("Id", eventSourceId)
.AddParam("Name", evnt.GetType().FullName)
.AddParam("Sequence", evnt.EventSequence)
.AddParam("Data", data);
cmd.ExecuteNonQuery();
}
}
}
protected internal void ApplyEvent(SourcedEvent evnt)
{
if (evnt.EventSourceId != SourcedEvent.UndefinedEventSourceId)
{
var message = String.Format("The {0} event cannot be applied to event source {1} with id {2} " +
"since it was already owned by event source with id {3}.",
evnt.GetType().FullName, this.GetType().FullName, EventSourceId, evnt.EventSourceId);
throw new InvalidOperationException(message);
}
if (evnt.EventSequence != SourcedEvent.UndefinedEventSequence)
{
// TODO: Add better exception message.
var message = String.Format("The {0} event cannot be applied to event source {1} with id {2} " +
"since the event already contains a sequence {3} while {4} was expected.",
evnt.GetType().FullName, this.GetType().FullName, EventSourceId, evnt.EventSequence, SourcedEvent.UndefinedEventSequence);
throw new InvalidOperationException(message);
}
evnt.EventSourceId = EventSourceId;
evnt.EventSequence = Version + 1;
HandleEvent(evnt);
_uncommittedEvents.Append(evnt);
OnEventApplied(evnt);
}