/// <summary>
/// Gets the by ID.
/// </summary>
/// <typeparam name="TAggregateRoot">The type of the aggregate root.</typeparam>
/// <param name="aggregateID">The aggregate ID.</param>
/// <param name="queryOptions">The query options.</param>
/// <returns></returns>
public TAggregateRoot GetByID <TAggregateRoot>(object aggregateID, AggregateRootQueryOptions queryOptions)
where TAggregateRoot : AggregateRoot
{
if (aggregateID == null)
{
throw new ArgumentNullException("aggregateID");
}
var aggregate = (_factory(typeof(TAggregateRoot)) as TAggregateRoot);
if (aggregate == null)
{
throw new InvalidOperationException("aggregate");
}
// find snapshot
var loaded = false;
AggregateRootSnapshot snapshot = null;
if (_snapshotStore != null)
{
var snapshoter = (aggregate as ICanAggregateRootSnapshot);
if (snapshoter != null && (snapshot = _snapshotStore.GetLatestSnapshot <TAggregateRoot>(aggregateID)) != null)
{
loaded = true;
snapshoter.LoadSnapshot(snapshot);
}
}
// load events
var events = _eventStore.GetEventsByID(aggregateID, (snapshot != null ? snapshot.LastEventSequence : 0));
loaded |= ((IAggregateRootStateAccessor)aggregate).LoadFromHistory(events);
return((queryOptions & AggregateRootQueryOptions.UseNullAggregates) == 0 ? aggregate : (loaded ? aggregate : null));
}
/// <summary>
/// Saves the snapshot.
/// </summary>
/// <param name="aggregateType">Type of the aggregate.</param>
/// <param name="snapshot">The snapshot.</param>
public void SaveSnapshot(Type aggregateType, AggregateRootSnapshot snapshot)
{
var connectionStringBuilder = new MongoConnectionStringBuilder(_connectionString);
var database = MongoServer.Create(connectionStringBuilder).GetDatabase(connectionStringBuilder.DatabaseName);
var query = Query.EQ("AggregateID", _makeAggregateID(snapshot.AggregateID));
var update = new UpdateDocument
{
{ "$set", snapshot.ToBson() }
};
database.GetCollection <AggregateRootSnapshot>(_tableName).Update(query, update, UpdateFlags.Upsert);
}
/// <summary>
/// Saves the snapshot.
/// </summary>
/// <param name="aggregateType">Type of the aggregate.</param>
/// <param name="snapshot">The snapshot.</param>
public void SaveSnapshot(Type aggregateType, AggregateRootSnapshot snapshot)
{
var streamID = (Guid)snapshot.AggregateID;
_store.Advanced.AddSnapshot(new Snapshot(streamID, snapshot.LastEventSequence, snapshot));
}
