public ICollection <LoadedObjectDataWithDataSourceData> GetOrLoadFetchQueryResult(
IQuery query,
LoadedObjectDataPendingRegistrationCollector pendingRegistrationCollector)
{
ArgumentUtility.CheckNotNull("query", query);
ArgumentUtility.CheckNotNull("pendingRegistrationCollector", pendingRegistrationCollector);
var loadedObjectDataWithSource = _persistenceStrategy.ExecuteFetchQuery(query, LoadedObjectDataProvider).ConvertToCollection();
var loadedObjectDataAfterConsolidation = LoadedObjectDataRegistrationAgent
.BeginRegisterIfRequired(
loadedObjectDataWithSource.Select(data => data.LoadedObjectData),
true,
pendingRegistrationCollector)
.ToList();
Assertion.IsTrue(loadedObjectDataWithSource.Count == loadedObjectDataAfterConsolidation.Count);
var loadedObjectDataWithSourceAfterConsolidation = loadedObjectDataWithSource
.Select((d, i) => new LoadedObjectDataWithDataSourceData(loadedObjectDataAfterConsolidation[i], d.DataSourceData))
.ConvertToCollection();
_eagerFetcher.PerformEagerFetching(loadedObjectDataAfterConsolidation, query.EagerFetchQueries, this, pendingRegistrationCollector);
return(loadedObjectDataWithSourceAfterConsolidation);
}
public void EndRegisterIfRequired(LoadedObjectDataPendingRegistrationCollector pendingLoadedObjectDataCollector)
{
ArgumentUtility.CheckNotNull("pendingLoadedObjectDataCollector", pendingLoadedObjectDataCollector);
if (pendingLoadedObjectDataCollector.DataPendingRegistration.Count == 0)
{
return;
}
// Note: After this event, OnAfterObjectRegistration _must_ be raised for the same ObjectIDs! Otherwise, we'll leak "objects currently loading".
var objectIDs = pendingLoadedObjectDataCollector.DataPendingRegistration.Select(data => data.ObjectID).ToList().AsReadOnly();
_registrationListener.OnBeforeObjectRegistration(objectIDs);
var loadedDomainObjects = new List <DomainObject> (pendingLoadedObjectDataCollector.DataPendingRegistration.Count);
try
{
foreach (var data in pendingLoadedObjectDataCollector.DataPendingRegistration)
{
var dataContainer = data.FreshlyLoadedDataContainer;
Assertion.IsTrue(dataContainer.HasDomainObject);
_dataManager.RegisterDataContainer(dataContainer);
loadedDomainObjects.Add(dataContainer.DomainObject);
}
}
finally
{
_registrationListener.OnAfterObjectRegistration(objectIDs, loadedDomainObjects.AsReadOnly());
}
}
public IEnumerable <ILoadedObjectData> BeginRegisterIfRequired(
IEnumerable <ILoadedObjectData> loadedObjects, bool throwOnNotFound, LoadedObjectDataPendingRegistrationCollector pendingLoadedObjectDataCollector)
{
ArgumentUtility.CheckNotNull("loadedObjects", loadedObjects);
var visitor = new RegisteredDataContainerGatheringVisitor(pendingLoadedObjectDataCollector, _clientTransaction);
foreach (var loadedObject in loadedObjects)
{
loadedObject.Accept(visitor);
}
if (visitor.NotFoundObjectIDs.Any())
{
_registrationListener.OnObjectsNotFound(visitor.NotFoundObjectIDs);
// Note: If this exception is thrown, we have already set the DomainObjects of the freshly loaded DataContainer, and we've also added them to
// the collector. This shouldn't make any difference, and it's easier to implement.
if (throwOnNotFound)
{
throw new ObjectsNotFoundException(visitor.NotFoundObjectIDs);
}
}
return(visitor.LoadedObjectData);
}
public IEnumerable <ILoadedObjectData> RegisterIfRequired(IEnumerable <ILoadedObjectData> loadedObjects, bool throwOnNotFound)
{
var collector = new LoadedObjectDataPendingRegistrationCollector();
var result = BeginRegisterIfRequired(loadedObjects, throwOnNotFound, collector);
EndRegisterIfRequired(collector);
return(result);
}
public RegisteredDataContainerGatheringVisitor(
LoadedObjectDataPendingRegistrationCollector dataPendingRegistrationCollector,
ClientTransaction clientTransaction)
{
ArgumentUtility.CheckNotNull("dataPendingRegistrationCollector", dataPendingRegistrationCollector);
ArgumentUtility.CheckNotNull("clientTransaction", clientTransaction);
_dataPendingRegistrationCollector = dataPendingRegistrationCollector;
_clientTransaction = clientTransaction;
}
public override ICollection <ILoadedObjectData> GetOrLoadCollectionQueryResult(IQuery query)
{
ArgumentUtility.CheckNotNull("query", query);
var pendingRegistrationCollector = new LoadedObjectDataPendingRegistrationCollector();
var loadedObjectData = _persistenceStrategy.ExecuteCollectionQuery(query, LoadedObjectDataProvider);
var loadedObjectDataAfterConsolidation = LoadedObjectDataRegistrationAgent
.BeginRegisterIfRequired(loadedObjectData, true, pendingRegistrationCollector)
.ConvertToCollection();
try
{
_eagerFetcher.PerformEagerFetching(loadedObjectDataAfterConsolidation, query.EagerFetchQueries, this, pendingRegistrationCollector);
}
finally
{
// Even with an exception during eager fetching, go ahead and register everything.
LoadedObjectDataRegistrationAgent.EndRegisterIfRequired(pendingRegistrationCollector);
}
return(loadedObjectDataAfterConsolidation);
}
