/// <summary> Try to initialize a collection from the cache</summary>
private async Task <bool> InitializeCollectionFromCacheAsync(object id, ICollectionPersister persister, IPersistentCollection collection, ISessionImplementor source, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (!(source.EnabledFilters.Count == 0) && persister.IsAffectedByEnabledFilters(source))
{
log.Debug("disregarding cached version (if any) of collection due to enabled filters ");
return(false);
}
bool useCache = persister.HasCache && source.CacheMode.HasFlag(CacheMode.Get);
if (!useCache)
{
return(false);
}
else
{
ISessionFactoryImplementor factory = source.Factory;
CacheKey ck = source.GenerateCacheKey(id, persister.KeyType, persister.Role);
object ce = await(persister.Cache.GetAsync(ck, source.Timestamp, cancellationToken)).ConfigureAwait(false);
if (factory.Statistics.IsStatisticsEnabled)
{
if (ce == null)
{
factory.StatisticsImplementor.SecondLevelCacheMiss(persister.Cache.RegionName);
}
else
{
factory.StatisticsImplementor.SecondLevelCacheHit(persister.Cache.RegionName);
}
}
if (ce == null)
{
log.Debug("Collection cache miss: {0}", ck);
}
else
{
log.Debug("Collection cache hit: {0}", ck);
}
if (ce == null)
{
return(false);
}
else
{
IPersistenceContext persistenceContext = source.PersistenceContext;
CollectionCacheEntry cacheEntry = (CollectionCacheEntry)persister.CacheEntryStructure.Destructure(ce, factory);
await(cacheEntry.AssembleAsync(collection, persister, persistenceContext.GetCollectionOwner(id, persister), cancellationToken)).ConfigureAwait(false);
persistenceContext.GetCollectionEntry(collection).PostInitialize(collection);
return(true);
}
}
}
/// <summary> Try to initialize a collection from the cache</summary>
private bool InitializeCollectionFromCache(object id, ICollectionPersister persister, IPersistentCollection collection, ISessionImplementor source)
{
if (!(source.EnabledFilters.Count == 0) && persister.IsAffectedByEnabledFilters(source))
{
log.Debug("disregarding cached version (if any) of collection due to enabled filters ");
return false;
}
bool useCache = persister.HasCache && ((source.CacheMode & CacheMode.Get) == CacheMode.Get);
if (!useCache)
{
return false;
}
else
{
ISessionFactoryImplementor factory = source.Factory;
CacheKey ck = new CacheKey(id, persister.KeyType, persister.Role, source.EntityMode, factory);
object ce = persister.Cache.Get(ck, source.Timestamp);
if (factory.Statistics.IsStatisticsEnabled)
{
if (ce == null)
{
factory.StatisticsImplementor.SecondLevelCacheMiss(persister.Cache.RegionName);
}
else
{
factory.StatisticsImplementor.SecondLevelCacheHit(persister.Cache.RegionName);
}
}
if (ce == null)
{
log.DebugFormat("Collection cache miss: {0}", ck);
}
else
{
log.DebugFormat("Collection cache hit: {0}", ck);
}
if (ce == null)
{
return false;
}
else
{
IPersistenceContext persistenceContext = source.PersistenceContext;
CollectionCacheEntry cacheEntry = (CollectionCacheEntry)persister.CacheEntryStructure.Destructure(ce, factory);
cacheEntry.Assemble(collection, persister, persistenceContext.GetCollectionOwner(id, persister));
persistenceContext.GetCollectionEntry(collection).PostInitialize(collection);
return true;
}
}
}
/// <summary> Try to initialize a collection from the cache</summary>
private bool InitializeCollectionFromCache(object id, ICollectionPersister persister, IPersistentCollection collection, ISessionImplementor source)
{
if (!(source.EnabledFilters.Count == 0) && persister.IsAffectedByEnabledFilters(source))
{
log.Debug("disregarding cached version (if any) of collection due to enabled filters ");
return(false);
}
bool useCache = persister.HasCache && ((source.CacheMode & CacheMode.Get) == CacheMode.Get);
if (!useCache)
{
return(false);
}
else
{
ISessionFactoryImplementor factory = source.Factory;
CacheKey ck = new CacheKey(id, persister.KeyType, persister.Role, source.EntityMode, factory);
object ce = persister.Cache.Get(ck, source.Timestamp);
if (factory.Statistics.IsStatisticsEnabled)
{
if (ce == null)
{
factory.StatisticsImplementor.SecondLevelCacheMiss(persister.Cache.RegionName);
}
else
{
factory.StatisticsImplementor.SecondLevelCacheHit(persister.Cache.RegionName);
}
}
if (ce == null)
{
log.DebugFormat("Collection cache miss: {0}", ck);
}
else
{
log.DebugFormat("Collection cache hit: {0}", ck);
}
if (ce == null)
{
return(false);
}
else
{
IPersistenceContext persistenceContext = source.PersistenceContext;
CollectionCacheEntry cacheEntry = (CollectionCacheEntry)persister.CacheEntryStructure.Destructure(ce, factory);
cacheEntry.Assemble(collection, persister, persistenceContext.GetCollectionOwner(id, persister));
persistenceContext.GetCollectionEntry(collection).PostInitialize(collection);
return(true);
}
}
}
/// <summary> Add the collection to the second-level cache </summary>
/// <param name="lce">The entry representing the collection to add </param>
/// <param name="persister">The persister </param>
/// <param name="cancellationToken">A cancellation token that can be used to cancel the work</param>
private async Task AddCollectionToCacheAsync(LoadingCollectionEntry lce, ICollectionPersister persister, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
ISessionImplementor session = LoadContext.PersistenceContext.Session;
ISessionFactoryImplementor factory = session.Factory;
if (log.IsDebugEnabled())
{
log.Debug("Caching collection: {0}", MessageHelper.CollectionInfoString(persister, lce.Collection, lce.Key, session));
}
if (!(session.EnabledFilters.Count == 0) && persister.IsAffectedByEnabledFilters(session))
{
// some filters affecting the collection are enabled on the session, so do not do the put into the cache.
log.Debug("Refusing to add to cache due to enabled filters");
// todo : add the notion of enabled filters to the CacheKey to differentiate filtered collections from non-filtered;
// but CacheKey is currently used for both collections and entities; would ideally need to define two separate ones;
// currently this works in conjunction with the check on
// DefaultInitializeCollectionEventHandler.initializeCollectionFromCache() (which makes sure to not read from
// cache with enabled filters).
return; // EARLY EXIT!!!!!
}
IComparer versionComparator;
object version;
if (persister.IsVersioned)
{
versionComparator = persister.OwnerEntityPersister.VersionType.Comparator;
object collectionOwner = LoadContext.PersistenceContext.GetCollectionOwner(lce.Key, persister);
if (collectionOwner == null)
{
return;
}
version = LoadContext.PersistenceContext.GetEntry(collectionOwner).Version;
}
else
{
version = null;
versionComparator = null;
}
CollectionCacheEntry entry = new CollectionCacheEntry(lce.Collection, persister);
CacheKey cacheKey = session.GenerateCacheKey(lce.Key, persister.KeyType, persister.Role);
bool put = await(persister.Cache.PutAsync(cacheKey, persister.CacheEntryStructure.Structure(entry),
session.Timestamp, version, versionComparator,
factory.Settings.IsMinimalPutsEnabled && session.CacheMode != CacheMode.Refresh, cancellationToken)).ConfigureAwait(false);
if (put && factory.Statistics.IsStatisticsEnabled)
{
factory.StatisticsImplementor.SecondLevelCachePut(persister.Cache.RegionName);
}
}
/// <summary> Try to initialize a collection from the cache</summary>
private async Task <bool> InitializeCollectionFromCacheAsync(
object collectionKey, ICollectionPersister persister, IPersistentCollection collection,
ISessionImplementor source, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (!(source.EnabledFilters.Count == 0) && persister.IsAffectedByEnabledFilters(source))
{
log.Debug("disregarding cached version (if any) of collection due to enabled filters ");
return(false);
}
bool useCache = persister.HasCache && source.CacheMode.HasFlag(CacheMode.Get);
if (!useCache)
{
return(false);
}
var batchSize = persister.GetBatchSize();
if (batchSize > 1 && persister.Cache.PreferMultipleGet())
{
var collectionEntries = new CollectionEntry[batchSize];
// The first item in the array is the item that we want to load
var collectionBatch = await(source.PersistenceContext.BatchFetchQueue
.GetCollectionBatchAsync(persister, collectionKey, batchSize, false, collectionEntries, cancellationToken)).ConfigureAwait(false);
// Ignore null values as the retrieved batch may contains them when there are not enough
// uninitialized collection in the queue
var keys = new List <CacheKey>(batchSize);
for (var i = 0; i < collectionBatch.Length; i++)
{
var key = collectionBatch[i];
if (key == null)
{
break;
}
keys.Add(source.GenerateCacheKey(key, persister.KeyType, persister.Role));
}
var cachedObjects = await(persister.Cache.GetManyAsync(keys.ToArray(), source.Timestamp, cancellationToken)).ConfigureAwait(false);
for (var i = 1; i < cachedObjects.Length; i++)
{
var coll = source.PersistenceContext.BatchFetchQueue.GetBatchLoadableCollection(persister, collectionEntries[i]);
await(AssembleAsync(keys[i], cachedObjects[i], persister, source, coll, collectionBatch[i], false, cancellationToken)).ConfigureAwait(false);
}
return(await(AssembleAsync(keys[0], cachedObjects[0], persister, source, collection, collectionKey, true, cancellationToken)).ConfigureAwait(false));
}
var cacheKey = source.GenerateCacheKey(collectionKey, persister.KeyType, persister.Role);
var cachedObject = await(persister.Cache.GetAsync(cacheKey, source.Timestamp, cancellationToken)).ConfigureAwait(false);
return(await(AssembleAsync(cacheKey, cachedObject, persister, source, collection, collectionKey, true, cancellationToken)).ConfigureAwait(false));
}
/// <summary> Try to initialize a collection from the cache</summary>
private bool InitializeCollectionFromCache(object id, ICollectionPersister persister, IPersistentCollection collection, ISessionImplementor source)
{
if (!(source.EnabledFilters.Count == 0) && persister.IsAffectedByEnabledFilters(source))
{
log.Debug("disregarding cached version (if any) of collection due to enabled filters ");
return(false);
}
bool useCache = persister.HasCache && source.CacheMode.HasFlag(CacheMode.Get);
if (!useCache)
{
return(false);
}
var batchSize = persister.GetBatchSize();
if (batchSize > 1 && persister.Cache.IsBatchingGetSupported())
{
var collectionEntries = new CollectionEntry[batchSize];
// The first item in the array is the item that we want to load
var collectionBatch = source.PersistenceContext.BatchFetchQueue
.GetCollectionBatch(persister, id, batchSize, false, collectionEntries);
// Ignore null values as the retrieved batch may contains them when there are not enough
// uninitialized collection in the queue
var keys = new List <CacheKey>(batchSize);
for (var i = 0; i < collectionBatch.Length; i++)
{
var key = collectionBatch[i];
if (key == null)
{
break;
}
keys.Add(source.GenerateCacheKey(key, persister.KeyType, persister.Role));
}
var cachedObjects = persister.Cache.GetMany(keys.ToArray(), source.Timestamp);
for (var i = 1; i < cachedObjects.Length; i++)
{
var coll = source.PersistenceContext.BatchFetchQueue.GetBatchLoadableCollection(persister, collectionEntries[i]);
Assemble(keys[i], cachedObjects[i], persister, source, coll, collectionBatch[i], false);
}
return(Assemble(keys[0], cachedObjects[0], persister, source, collection, id, true));
}
var cacheKey = source.GenerateCacheKey(id, persister.KeyType, persister.Role);
var cachedObject = persister.Cache.Get(cacheKey, source.Timestamp);
return(Assemble(cacheKey, cachedObject, persister, source, collection, id, true));
}
/// <summary> Add the collection to the second-level cache </summary>
/// <param name="lce">The entry representing the collection to add </param>
/// <param name="persister">The persister </param>
private void AddCollectionToCache(LoadingCollectionEntry lce, ICollectionPersister persister)
{
ISessionImplementor session = LoadContext.PersistenceContext.Session;
ISessionFactoryImplementor factory = session.Factory;
if (log.IsDebugEnabled)
{
log.Debug("Caching collection: " + MessageHelper.InfoString(persister, lce.Key, factory));
}
if (!(session.EnabledFilters.Count == 0) && persister.IsAffectedByEnabledFilters(session))
{
// some filters affecting the collection are enabled on the session, so do not do the put into the cache.
log.Debug("Refusing to add to cache due to enabled filters");
// todo : add the notion of enabled filters to the CacheKey to differentiate filtered collections from non-filtered;
// but CacheKey is currently used for both collections and entities; would ideally need to define two separate ones;
// currently this works in conjunction with the check on
// DefaultInitializeCollectionEventHandler.initializeCollectionFromCache() (which makes sure to not read from
// cache with enabled filters).
return; // EARLY EXIT!!!!!
}
IComparer versionComparator;
object version;
if (persister.IsVersioned)
{
versionComparator = persister.OwnerEntityPersister.VersionType.Comparator;
object collectionOwner = LoadContext.PersistenceContext.GetCollectionOwner(lce.Key, persister);
version = LoadContext.PersistenceContext.GetEntry(collectionOwner).Version;
}
else
{
version = null;
versionComparator = null;
}
CollectionCacheEntry entry = new CollectionCacheEntry(lce.Collection, persister);
CacheKey cacheKey = session.GenerateCacheKey(lce.Key, persister.KeyType, persister.Role);
bool put = persister.Cache.Put(cacheKey, persister.CacheEntryStructure.Structure(entry),
session.Timestamp, version, versionComparator,
factory.Settings.IsMinimalPutsEnabled && session.CacheMode != CacheMode.Refresh);
if (put && factory.Statistics.IsStatisticsEnabled)
{
factory.StatisticsImplementor.SecondLevelCachePut(persister.Cache.RegionName);
}
}
public override void Execute()
{
object id = Key;
ISessionImplementor session = Session;
ICollectionPersister persister = Persister;
IPersistentCollection collection = Collection;
bool affectedByFilters = persister.IsAffectedByEnabledFilters(session);
bool statsEnabled = session.Factory.Statistics.IsStatisticsEnabled;
Stopwatch stopwatch = null;
if (statsEnabled)
{
stopwatch = Stopwatch.StartNew();
}
PreUpdate();
if (!collection.WasInitialized)
{
if (!collection.HasQueuedOperations)
{
throw new AssertionFailure("no queued adds");
}
//do nothing - we only need to notify the cache...
}
else if (!affectedByFilters && collection.Empty)
{
if (!emptySnapshot)
{
persister.Remove(id, session);
}
}
else if (collection.NeedsRecreate(persister))
{
if (affectedByFilters)
{
throw new HibernateException("cannot recreate collection while filter is enabled: "
+ MessageHelper.CollectionInfoString(persister, collection, id, session));
}
if (!emptySnapshot)
{
persister.Remove(id, session);
}
persister.Recreate(collection, id, session);
}
else
{
persister.DeleteRows(collection, id, session);
persister.UpdateRows(collection, id, session);
persister.InsertRows(collection, id, session);
}
Session.PersistenceContext.GetCollectionEntry(collection).AfterAction(collection);
Evict();
PostUpdate();
if (statsEnabled)
{
stopwatch.Stop();
Session.Factory.StatisticsImplementor.UpdateCollection(Persister.Role, stopwatch.Elapsed);
}
}
public override async Task ExecuteAsync(CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
object id = await(GetKeyAsync(cancellationToken)).ConfigureAwait(false);
ISessionImplementor session = Session;
ICollectionPersister persister = Persister;
IPersistentCollection collection = Collection;
bool affectedByFilters = persister.IsAffectedByEnabledFilters(session);
bool statsEnabled = session.Factory.Statistics.IsStatisticsEnabled;
Stopwatch stopwatch = null;
if (statsEnabled)
{
stopwatch = Stopwatch.StartNew();
}
await(PreUpdateAsync(cancellationToken)).ConfigureAwait(false);
if (!collection.WasInitialized)
{
if (!collection.HasQueuedOperations)
{
throw new AssertionFailure("no queued adds");
}
//do nothing - we only need to notify the cache...
}
else if (!affectedByFilters && collection.Empty)
{
if (!emptySnapshot)
{
await(persister.RemoveAsync(id, session, cancellationToken)).ConfigureAwait(false);
}
}
else if (collection.NeedsRecreate(persister))
{
if (affectedByFilters)
{
throw new HibernateException("cannot recreate collection while filter is enabled: "
+ MessageHelper.CollectionInfoString(persister, collection, id, session));
}
if (!emptySnapshot)
{
await(persister.RemoveAsync(id, session, cancellationToken)).ConfigureAwait(false);
}
await(persister.RecreateAsync(collection, id, session, cancellationToken)).ConfigureAwait(false);
}
else
{
await(persister.DeleteRowsAsync(collection, id, session, cancellationToken)).ConfigureAwait(false);
await(persister.UpdateRowsAsync(collection, id, session, cancellationToken)).ConfigureAwait(false);
await(persister.InsertRowsAsync(collection, id, session, cancellationToken)).ConfigureAwait(false);
}
var entry = Session.PersistenceContext.GetCollectionEntry(collection);
entry.AfterAction(collection);
await(EvictAsync(cancellationToken)).ConfigureAwait(false);
await(PostUpdateAsync(cancellationToken)).ConfigureAwait(false);
if (statsEnabled)
{
stopwatch.Stop();
Session.Factory.StatisticsImplementor.UpdateCollection(Persister.Role, stopwatch.Elapsed);
}
}