/// <summary>
/// Perform the second step of 2-phase load. Fully initialize the entity instance.
/// After processing a JDBC result set, we "resolve" all the associations
/// between the entities which were instantiated and had their state
/// "hydrated" into an array
/// </summary>
internal static void InitializeEntity(object entity, bool readOnly, ISessionImplementor session, PreLoadEvent preLoadEvent, PostLoadEvent postLoadEvent,
Action <IEntityPersister, CachePutData> cacheBatchingHandler)
{
//TODO: Should this be an InitializeEntityEventListener??? (watch out for performance!)
bool statsEnabled = session.Factory.Statistics.IsStatisticsEnabled;
var stopWath = new Stopwatch();
if (statsEnabled)
{
stopWath.Start();
}
IPersistenceContext persistenceContext = session.PersistenceContext;
EntityEntry entityEntry = persistenceContext.GetEntry(entity);
if (entityEntry == null)
{
throw new AssertionFailure("possible non-threadsafe access to the session");
}
IEntityPersister persister = entityEntry.Persister;
object id = entityEntry.Id;
object[] hydratedState = entityEntry.LoadedState;
if (log.IsDebugEnabled())
{
log.Debug("resolving associations for {0}", MessageHelper.InfoString(persister, id, session.Factory));
}
IType[] types = persister.PropertyTypes;
var collectionToResolveIndexes = new List <int>(hydratedState.Length);
for (int i = 0; i < hydratedState.Length; i++)
{
object value = hydratedState[i];
if (!Equals(LazyPropertyInitializer.UnfetchedProperty, value) && !(Equals(BackrefPropertyAccessor.Unknown, value)))
{
if (types[i].IsCollectionType)
{
// Resolve them last, because they may depend on other properties if they use a property-ref
collectionToResolveIndexes.Add(i);
continue;
}
hydratedState[i] = types[i].ResolveIdentifier(value, session, entity);
}
}
foreach (var i in collectionToResolveIndexes)
{
hydratedState[i] = types[i].ResolveIdentifier(hydratedState[i], session, entity);
}
//Must occur after resolving identifiers!
if (session.IsEventSource)
{
preLoadEvent.Entity = entity;
preLoadEvent.State = hydratedState;
preLoadEvent.Id = id;
preLoadEvent.Persister = persister;
IPreLoadEventListener[] listeners = session.Listeners.PreLoadEventListeners;
for (int i = 0; i < listeners.Length; i++)
{
listeners[i].OnPreLoad(preLoadEvent);
}
}
persister.SetPropertyValues(entity, hydratedState);
ISessionFactoryImplementor factory = session.Factory;
if (persister.HasCache && session.CacheMode.HasFlag(CacheMode.Put))
{
if (log.IsDebugEnabled())
{
log.Debug("adding entity to second-level cache: {0}", MessageHelper.InfoString(persister, id, session.Factory));
}
object version = Versioning.GetVersion(hydratedState, persister);
CacheEntry entry =
CacheEntry.Create(hydratedState, persister, version, session, entity);
CacheKey cacheKey = session.GenerateCacheKey(id, persister.IdentifierType, persister.RootEntityName);
if (cacheBatchingHandler != null && persister.IsBatchLoadable)
{
cacheBatchingHandler(
persister,
new CachePutData(
cacheKey,
persister.CacheEntryStructure.Structure(entry),
version,
persister.IsVersioned ? persister.VersionType.Comparator : null,
UseMinimalPuts(session, entityEntry)));
}
else
{
bool put =
persister.Cache.Put(cacheKey, persister.CacheEntryStructure.Structure(entry), session.Timestamp, version,
persister.IsVersioned ? persister.VersionType.Comparator : null,
UseMinimalPuts(session, entityEntry));
if (put && factory.Statistics.IsStatisticsEnabled)
{
factory.StatisticsImplementor.SecondLevelCachePut(persister.Cache.RegionName);
}
}
}
bool isReallyReadOnly = readOnly;
if (!persister.IsMutable)
{
isReallyReadOnly = true;
}
else
{
object proxy = persistenceContext.GetProxy(entityEntry.EntityKey);
if (proxy != null)
{
// there is already a proxy for this impl
// only set the status to read-only if the proxy is read-only
isReallyReadOnly = ((INHibernateProxy)proxy).HibernateLazyInitializer.ReadOnly;
}
}
if (isReallyReadOnly)
{
//no need to take a snapshot - this is a
//performance optimization, but not really
//important, except for entities with huge
//mutable property values
persistenceContext.SetEntryStatus(entityEntry, Status.ReadOnly);
}
else
{
//take a snapshot
TypeHelper.DeepCopy(hydratedState, persister.PropertyTypes, persister.PropertyUpdateability, hydratedState, session);
persistenceContext.SetEntryStatus(entityEntry, Status.Loaded);
}
persister.AfterInitialize(entity, session);
if (session.IsEventSource)
{
postLoadEvent.Entity = entity;
postLoadEvent.Id = id;
postLoadEvent.Persister = persister;
IPostLoadEventListener[] listeners = session.Listeners.PostLoadEventListeners;
for (int i = 0; i < listeners.Length; i++)
{
listeners[i].OnPostLoad(postLoadEvent);
}
}
if (log.IsDebugEnabled())
{
log.Debug("done materializing entity {0}", MessageHelper.InfoString(persister, id, session.Factory));
}
if (statsEnabled)
{
stopWath.Stop();
factory.StatisticsImplementor.LoadEntity(persister.EntityName, stopWath.Elapsed);
}
}
public override void Execute()
{
ISessionImplementor session = Session;
object id = Id;
IEntityPersister persister = Persister;
object instance = Instance;
bool statsEnabled = Session.Factory.Statistics.IsStatisticsEnabled;
Stopwatch stopwatch = null;
if (statsEnabled)
{
stopwatch = Stopwatch.StartNew();
}
bool veto = PreUpdate();
ISessionFactoryImplementor factory = Session.Factory;
if (persister.IsVersionPropertyGenerated)
{
// we need to grab the version value from the entity, otherwise
// we have issues with generated-version entities that may have
// multiple actions queued during the same flush
previousVersion = persister.GetVersion(instance);
}
CacheKey ck = null;
if (persister.HasCache)
{
ck = session.GenerateCacheKey(id, persister.IdentifierType, persister.RootEntityName);
slock = persister.Cache.Lock(ck, previousVersion);
}
if (!veto)
{
persister.Update(id, state, dirtyFields, hasDirtyCollection, previousState, previousVersion, instance, null, session);
}
EntityEntry entry = Session.PersistenceContext.GetEntry(instance);
if (entry == null)
{
throw new AssertionFailure("Possible nonthreadsafe access to session");
}
if (entry.Status == Status.Loaded || persister.IsVersionPropertyGenerated)
{
// get the updated snapshot of the entity state by cloning current state;
// it is safe to copy in place, since by this time no-one else (should have)
// has a reference to the array
TypeHelper.DeepCopy(state, persister.PropertyTypes, persister.PropertyCheckability, state, Session);
if (persister.HasUpdateGeneratedProperties)
{
// this entity defines property generation, so process those generated
// values...
persister.ProcessUpdateGeneratedProperties(id, instance, state, Session);
if (persister.IsVersionPropertyGenerated)
{
nextVersion = Versioning.GetVersion(state, persister);
}
}
// have the entity entry perform post-update processing, passing it the
// update state and the new version (if one).
entry.PostUpdate(instance, state, nextVersion);
}
if (persister.HasCache)
{
if (persister.IsCacheInvalidationRequired || entry.Status != Status.Loaded)
{
persister.Cache.Evict(ck);
}
else
{
CacheEntry ce = CacheEntry.Create(state, persister, nextVersion, Session, instance);
cacheEntry = persister.CacheEntryStructure.Structure(ce);
bool put = persister.Cache.Update(ck, cacheEntry, nextVersion, previousVersion);
if (put && factory.Statistics.IsStatisticsEnabled)
{
factory.StatisticsImplementor.SecondLevelCachePut(Persister.Cache.RegionName);
}
}
}
PostUpdate();
if (statsEnabled && !veto)
{
stopwatch.Stop();
factory.StatisticsImplementor.UpdateEntity(Persister.EntityName, stopwatch.Elapsed);
}
}
public void PutCloneToCache(AggregateRoot aggregateRootInfo)
{
// don't waste cycles add/trimming
if (IsEffectivelyDisabled)
{
return;
}
var aggregateRootId = aggregateRootInfo.Id;
var entriesForThisRoot = _cacheEntries.GetOrAdd(aggregateRootId, id => new ConcurrentDictionary <long, CacheEntry>());
var entrySuccessfullyAdded = entriesForThisRoot.TryAdd(aggregateRootInfo.GlobalSequenceNumberCutoff, CacheEntry.Create(aggregateRootInfo));
if (entrySuccessfullyAdded)
{
Interlocked.Increment(ref _currentNumberOfCacheEntries);
}
PossiblyTrimCache();
}
public override void Execute()
{
IEntityPersister persister = Persister;
ISessionImplementor session = Session;
object instance = Instance;
object id = Id;
bool statsEnabled = Session.Factory.Statistics.IsStatisticsEnabled;
Stopwatch stopwatch = null;
if (statsEnabled)
{
stopwatch = Stopwatch.StartNew();
}
bool veto = PreInsert();
// Don't need to lock the cache here, since if someone
// else inserted the same pk first, the insert would fail
if (!veto)
{
persister.Insert(id, State, instance, Session);
EntityEntry entry = Session.PersistenceContext.GetEntry(instance);
if (entry == null)
{
throw new AssertionFailure("Possible nonthreadsafe access to session");
}
entry.PostInsert();
if (persister.HasInsertGeneratedProperties)
{
persister.ProcessInsertGeneratedProperties(id, instance, State, Session);
if (persister.IsVersionPropertyGenerated)
{
version = Versioning.GetVersion(State, persister);
}
entry.PostUpdate(instance, State, version);
}
}
ISessionFactoryImplementor factory = Session.Factory;
if (IsCachePutEnabled(persister))
{
CacheEntry ce = CacheEntry.Create(State, persister, persister.HasUninitializedLazyProperties(instance), version, session, instance);
cacheEntry = persister.CacheEntryStructure.Structure(ce);
CacheKey ck = Session.GenerateCacheKey(id, persister.IdentifierType, persister.RootEntityName);
bool put = persister.Cache.Insert(ck, cacheEntry, version);
if (put && factory.Statistics.IsStatisticsEnabled)
{
factory.StatisticsImplementor.SecondLevelCachePut(Persister.Cache.RegionName);
}
}
PostInsert();
if (statsEnabled && !veto)
{
stopwatch.Stop();
factory.StatisticsImplementor.InsertEntity(Persister.EntityName, stopwatch.Elapsed);
}
}
public override void Execute()
{
IEntityPersister persister = Persister;
ISessionImplementor session = Session;
object instance = Instance;
object id = Id;
bool statsEnabled = Session.Factory.Statistics.IsStatisticsEnabled;
Stopwatch stopwatch = null;
if (statsEnabled)
{
stopwatch = Stopwatch.StartNew();
}
bool veto = PreInsert();
var wasDelayed = false;
// Don't need to lock the cache here, since if someone
// else inserted the same pk first, the insert would fail
if (!veto)
{
// The identifier may be a foreign delayed identifier, which at this point should have been resolved.
if (id is DelayedPostInsertIdentifier delayed)
{
wasDelayed = true;
id = delayed.ActualId ??
throw new InvalidOperationException(
$"The delayed foreign identifier {delayed} has not been resolved before insertion of a {instance}");
}
persister.Insert(id, State, instance, Session);
EntityEntry entry = Session.PersistenceContext.GetEntry(instance);
if (entry == null)
{
throw new AssertionFailure("Possible nonthreadsafe access to session");
}
entry.PostInsert();
if (wasDelayed)
{
Session.PersistenceContext.ReplaceDelayedEntityIdentityInsertKeys(entry.EntityKey, id);
}
if (persister.HasInsertGeneratedProperties)
{
persister.ProcessInsertGeneratedProperties(id, instance, State, Session);
if (persister.IsVersionPropertyGenerated)
{
version = Versioning.GetVersion(State, persister);
}
entry.PostUpdate(instance, State, version);
}
}
ISessionFactoryImplementor factory = Session.Factory;
if (IsCachePutEnabled(persister))
{
CacheEntry ce = CacheEntry.Create(State, persister, version, session, instance);
cacheEntry = persister.CacheEntryStructure.Structure(ce);
CacheKey ck = Session.GenerateCacheKey(id, persister.IdentifierType, persister.RootEntityName);
bool put = persister.Cache.Insert(ck, cacheEntry, version);
if (put && factory.Statistics.IsStatisticsEnabled)
{
factory.StatisticsImplementor.SecondLevelCachePut(Persister.Cache.RegionName);
}
}
PostInsert();
if (statsEnabled && !veto)
{
stopwatch.Stop();
factory.StatisticsImplementor.InsertEntity(Persister.EntityName, stopwatch.Elapsed);
}
}
