/// <summary>
/// Initializes a new instance of <see cref="ScheduledCollectionUpdate"/>.
/// </summary>
/// <param name="collection">The <see cref="IPersistentCollection"/> to update.</param>
/// <param name="persister">The <see cref="ICollectionPersister"/> that is responsible for the persisting the Collection.</param>
/// <param name="id">The identifier of the Collection owner.</param>
/// <param name="emptySnapshot">Indicates if the Collection was empty when it was loaded.</param>
/// <param name="session">The <see cref="ISessionImplementor"/> that the Action is occuring in.</param>
public ScheduledCollectionUpdate(IPersistentCollection collection, ICollectionPersister persister, object id,
bool emptySnapshot, ISessionImplementor session)
: base(persister, id, session)
{
_collection = collection;
_emptySnapshot = emptySnapshot;
}
public static IPersistentCollection Conj(IPersistentCollection collection, object obj)
{
if (collection == null)
return new PersistentList(obj);
return collection.Cons(obj);
}
/// <summary>
/// Initialize the role of the collection.
/// </summary>
/// <param name="collection">The collection to be updated by reachibility. </param>
/// <param name="type">The type of the collection. </param>
/// <param name="entity">The owner of the collection. </param>
/// <param name="session">The session.</param>
public static void ProcessReachableCollection(IPersistentCollection collection, CollectionType type, object entity, ISessionImplementor session)
{
collection.Owner = entity;
CollectionEntry ce = session.PersistenceContext.GetCollectionEntry(collection);
if (ce == null)
{
// refer to comment in StatefulPersistenceContext.addCollection()
throw new HibernateException(string.Format("Found two representations of same collection: {0}", type.Role));
}
// The CollectionEntry.isReached() stuff is just to detect any silly users
// who set up circular or shared references between/to collections.
if (ce.IsReached)
{
// We've been here before
throw new HibernateException(string.Format("Found shared references to a collection: {0}", type.Role));
}
ce.IsReached = true;
ISessionFactoryImplementor factory = session.Factory;
ICollectionPersister persister = factory.GetCollectionPersister(type.Role);
ce.CurrentPersister = persister;
ce.CurrentKey = type.GetKeyOfOwner(entity, session); //TODO: better to pass the id in as an argument?
if (log.IsDebugEnabled)
{
log.Debug("Collection found: " +
MessageHelper.InfoString(persister, ce.CurrentKey, factory) + ", was: " +
MessageHelper.InfoString(ce.LoadedPersister, ce.LoadedKey, factory) +
(collection.WasInitialized ? " (initialized)" : " (uninitialized)"));
}
PrepareCollectionForUpdate(collection, ce);
}
public CollectionUpdateAction(
IPersistentCollection collection, ICollectionPersister persister,
object key, bool emptySnapshot, ISessionImplementor session)
: base(persister, collection, key, session)
{
this.emptySnapshot = emptySnapshot;
}
public IList<PersistentCollectionChangeData> MapCollectionChanges(String referencingPropertyName,
IPersistentCollection newColl,
object oldColl,
object id)
{
return null;
}
public LoadingCollectionEntry(IDataReader resultSet, ICollectionPersister persister, object key, IPersistentCollection collection)
{
this.resultSet = resultSet;
this.persister = persister;
this.key = key;
this.collection = collection;
}
public IList<PersistentCollectionChangeData> MapCollectionChanges(string referencingPropertyName,
IPersistentCollection newColl,
object oldColl,
object id)
{
return _delegate.MapCollectionChanges(referencingPropertyName, newColl, oldColl, id);
}
/// <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> Constructs an AbstractCollectionEvent object. </summary>
/// <param name="collectionPersister">The collection persister.</param>
/// <param name="collection">The collection </param>
/// <param name="source">The Session source </param>
/// <param name="affectedOwner">The owner that is affected by this event; can be null if unavailable </param>
/// <param name="affectedOwnerId">
/// The ID for the owner that is affected by this event; can be null if unavailable
/// that is affected by this event; can be null if unavailable
/// </param>
protected AbstractCollectionEvent(ICollectionPersister collectionPersister, IPersistentCollection collection,
IEventSource source, object affectedOwner, object affectedOwnerId) : base(source)
{
this.collection = collection;
this.affectedOwner = affectedOwner;
this.affectedOwnerId = affectedOwnerId;
affectedOwnerEntityName = GetAffectedOwnerEntityName(collectionPersister, affectedOwner, source);
}
/// <summary>
/// Record the fact that this collection was dereferenced
/// </summary>
/// <param name="coll">The collection to be updated by unreachability. </param>
/// <param name="session">The session.</param>
public static void ProcessUnreachableCollection(IPersistentCollection coll, ISessionImplementor session)
{
if (coll.Owner == null)
{
ProcessNeverReferencedCollection(coll, session);
}
else
{
ProcessDereferencedCollection(coll, session);
}
}
private static void ProcessNeverReferencedCollection(IPersistentCollection coll, ISessionImplementor session)
{
CollectionEntry entry = session.PersistenceContext.GetCollectionEntry(coll);
log.Debug("Found collection with unloaded owner: " + MessageHelper.InfoString(entry.LoadedPersister, entry.LoadedKey, session.Factory));
entry.CurrentPersister = entry.LoadedPersister;
entry.CurrentKey = entry.LoadedKey;
PrepareCollectionForUpdate(coll, entry);
}
public PersistentCollectionChangeWorkUnit(ISessionImplementor sessionImplementor, String entityName,
AuditConfiguration auditCfg, IPersistentCollection collection,
CollectionEntry collectionEntry, Object snapshot, Object id,
String referencingPropertyName)
: base(sessionImplementor, entityName, auditCfg,
new PersistentCollectionChangeWorkUnitId(id, collectionEntry.Role))
{
this.ReferencingPropertyName = referencingPropertyName;
collectionChanges = auditCfg.EntCfg[EntityName].PropertyMapper
.MapCollectionChanges(referencingPropertyName, collection, snapshot, id);
}
private void EvictCollection(IPersistentCollection collection)
{
CollectionEntry ce = (CollectionEntry)Session.PersistenceContext.CollectionEntries[collection];
Session.PersistenceContext.CollectionEntries.Remove(collection);
if (log.IsDebugEnabled)
log.Debug("evicting collection: " + MessageHelper.InfoString(ce.LoadedPersister, ce.LoadedKey, Session.Factory));
if (ce.LoadedPersister != null && ce.LoadedKey != null)
{
//TODO: is this 100% correct?
Session.PersistenceContext.CollectionsByKey.Remove(new CollectionKey(ce.LoadedPersister, ce.LoadedKey, Session.EntityMode));
}
}
/// <summary>
/// Removes a persistent collection from its loaded owner.
/// </summary>
/// <param name="collection">The collection to to remove; must be non-null </param>
/// <param name="persister"> The collection's persister </param>
/// <param name="id">The collection key </param>
/// <param name="emptySnapshot">Indicates if the snapshot is empty </param>
/// <param name="session">The session </param>
/// <remarks>Use this constructor when the collection is non-null.</remarks>
public CollectionRemoveAction(IPersistentCollection collection, ICollectionPersister persister, object id,
bool emptySnapshot, ISessionImplementor session)
: base(persister, collection, id, session)
{
if (collection == null)
{
throw new AssertionFailure("collection == null");
}
this.emptySnapshot = emptySnapshot;
affectedOwner = session.PersistenceContext.GetLoadedCollectionOwnerOrNull(collection);
}
private static void ProcessDereferencedCollection(IPersistentCollection coll, ISessionImplementor session)
{
IPersistenceContext persistenceContext = session.PersistenceContext;
CollectionEntry entry = persistenceContext.GetCollectionEntry(coll);
ICollectionPersister loadedPersister = entry.LoadedPersister;
if (log.IsDebugEnabled && loadedPersister != null)
log.Debug("Collection dereferenced: " + MessageHelper.InfoString(loadedPersister, entry.LoadedKey, session.Factory));
// do a check
bool hasOrphanDelete = loadedPersister != null && loadedPersister.HasOrphanDelete;
if (hasOrphanDelete)
{
object ownerId = loadedPersister.OwnerEntityPersister.GetIdentifier(coll.Owner, session.EntityMode);
// TODO NH Different behavior
//if (ownerId == null)
//{
// // the owning entity may have been deleted and its identifier unset due to
// // identifier-rollback; in which case, try to look up its identifier from
// // the persistence context
// if (session.Factory.Settings.IsIdentifierRollbackEnabled)
// {
// EntityEntry ownerEntry = persistenceContext.GetEntry(coll.Owner);
// if (ownerEntry != null)
// {
// ownerId = ownerEntry.Id;
// }
// }
// if (ownerId == null)
// {
// throw new AssertionFailure("Unable to determine collection owner identifier for orphan-delete processing");
// }
//}
EntityKey key = new EntityKey(ownerId, loadedPersister.OwnerEntityPersister, session.EntityMode);
object owner = persistenceContext.GetEntity(key);
if (owner == null)
{
throw new AssertionFailure("collection owner not associated with session: " + loadedPersister.Role);
}
EntityEntry e = persistenceContext.GetEntry(owner);
//only collections belonging to deleted entities are allowed to be dereferenced in the case of orphan delete
if (e != null && e.Status != Status.Deleted && e.Status != Status.Gone)
{
throw new HibernateException("A collection with cascade=\"all-delete-orphan\" was no longer referenced by the owning entity instance: " + loadedPersister.Role);
}
}
// do the work
entry.CurrentPersister = null;
entry.CurrentKey = null;
PrepareCollectionForUpdate(coll, entry, session.EntityMode, session.Factory);
}
public MonthlyLogFilesHeuristics([NotNull] IPersistentCollection heuristicsPersistentCollection,
IWurmLogFiles wurmLogFiles,
MonthlyHeuristicsExtractorFactory monthlyHeuristicsExtractorFactory)
{
if (heuristicsPersistentCollection == null)
throw new ArgumentNullException("heuristicsPersistentCollection");
if (wurmLogFiles == null) throw new ArgumentNullException("wurmLogFiles");
if (monthlyHeuristicsExtractorFactory == null) throw new ArgumentNullException("monthlyHeuristicsExtractorFactory");
this.heuristicsPersistentCollection = heuristicsPersistentCollection;
this.wurmLogFiles = wurmLogFiles;
this.monthlyHeuristicsExtractorFactory = monthlyHeuristicsExtractorFactory;
}
/// <summary>
/// Reattach a detached (disassociated) initialized or uninitialized
/// collection wrapper, using a snapshot carried with the collection wrapper
/// </summary>
protected internal void ReattachCollection(IPersistentCollection collection, ICollectionSnapshot snapshot)
{
if (collection.WasInitialized)
{
Session.PersistenceContext.AddInitializedDetachedCollection(collection, snapshot);
}
else
{
if (!IsCollectionSnapshotValid(snapshot))
throw new HibernateException("could not reassociate uninitialized transient collection");
Session.PersistenceContext.AddUninitializedDetachedCollection(collection, snapshot);
}
}
//1. record the collection role that this collection is referenced by
//2. decide if the collection needs deleting/creating/updating (but don't actually schedule the action yet)
private static void PrepareCollectionForUpdate(IPersistentCollection coll, CollectionEntry entry)
{
if (entry.IsProcessed)
throw new AssertionFailure("collection was processed twice by flush()");
entry.IsProcessed = true;
ICollectionPersister loadedPersister = entry.LoadedPersister;
ICollectionPersister currentPersister = entry.CurrentPersister;
if (loadedPersister != null || currentPersister != null)
{
// it is or was referenced _somewhere_
bool ownerChanged = loadedPersister != currentPersister ||
!currentPersister.KeyType.IsEqual(entry.LoadedKey, entry.CurrentKey, EntityMode.Poco);
if (ownerChanged)
{
// do a check
bool orphanDeleteAndRoleChanged = loadedPersister != null &&
currentPersister != null && loadedPersister.HasOrphanDelete;
if (orphanDeleteAndRoleChanged)
{
throw new HibernateException("Don't change the reference to a collection with cascade=\"all-delete-orphan\": " + loadedPersister.Role);
}
// do the work
if (currentPersister != null)
{
entry.IsDorecreate = true; // we will need to create new entries
}
if (loadedPersister != null)
{
entry.IsDoremove = true; // we will need to remove ye olde entries
if (entry.IsDorecreate)
{
log.Debug("Forcing collection initialization");
coll.ForceInitialization(); // force initialize!
}
}
}
else if (coll.IsDirty)
{
// else if it's elements changed
entry.IsDoupdate = true;
}
}
}
/// <summary>
/// Reattach a detached (disassociated) initialized or uninitialized
/// collection wrapper, using a snapshot carried with the collection wrapper
/// </summary>
protected internal void ReattachCollection(IPersistentCollection collection, CollectionType type)
{
if (collection.WasInitialized)
{
ICollectionPersister collectionPersister = Session.Factory.GetCollectionPersister(type.Role);
Session.PersistenceContext.AddInitializedDetachedCollection(collectionPersister, collection);
}
else
{
if (!IsCollectionSnapshotValid(collection))
{
throw new HibernateException("could not reassociate uninitialized transient collection");
}
ICollectionPersister collectionPersister = Session.Factory.GetCollectionPersister(collection.Role);
Session.PersistenceContext.AddUninitializedDetachedCollection(collectionPersister, collection);
}
}
public IList<PersistentCollectionChangeData> MapCollectionChanges(String referencingPropertyName,
IPersistentCollection newColl,
Object oldColl,
Object id)
{
IList<PersistentCollectionChangeData> parentCollectionChanges = parentMapper.MapCollectionChanges(
referencingPropertyName, newColl, oldColl, id);
IList<PersistentCollectionChangeData> mainCollectionChanges = main.MapCollectionChanges(
referencingPropertyName, newColl, oldColl, id);
if (parentCollectionChanges == null) {
return mainCollectionChanges;
} else {
if(mainCollectionChanges != null) {
parentCollectionChanges.Concat(mainCollectionChanges);
}
return parentCollectionChanges;
}
}
public ServerHistoryProviderFactory(
IPersistentCollection persistentCollection,
IWurmLogsHistory wurmLogsHistory,
IWurmServerList wurmServerList,
ILogger logger,
IWurmLogsMonitorInternal wurmLogsMonitor,
IWurmLogFiles wurmLogFiles)
{
if (persistentCollection == null) throw new ArgumentNullException("persistentCollection");
if (wurmLogsHistory == null) throw new ArgumentNullException("wurmLogsHistory");
if (wurmServerList == null) throw new ArgumentNullException("wurmServerList");
if (logger == null) throw new ArgumentNullException("logger");
if (wurmLogsMonitor == null) throw new ArgumentNullException("wurmLogsMonitor");
if (wurmLogFiles == null) throw new ArgumentNullException("wurmLogFiles");
this.persistentCollection = persistentCollection;
this.wurmLogsHistory = wurmLogsHistory;
this.wurmServerList = wurmServerList;
this.logger = logger;
this.wurmLogsMonitor = wurmLogsMonitor;
this.wurmLogFiles = wurmLogFiles;
}
public PostCollectionRemoveEvent(ICollectionPersister collectionPersister, IPersistentCollection collection,
IEventSource source, object loadedOwner)
: base(collectionPersister, collection, source, loadedOwner, GetOwnerIdOrNull(loadedOwner, source))
{
}
/// <summary> Add an collection to the cache, with a given collection entry. </summary>
/// <param name="coll">The collection for which we are adding an entry.</param>
/// <param name="entry">The entry representing the collection. </param>
/// <param name="key">The key of the collection's entry. </param>
private void AddCollection(IPersistentCollection coll, CollectionEntry entry, object key)
{
collectionEntries[coll] = entry;
CollectionKey collectionKey = new CollectionKey(entry.LoadedPersister, key, session.EntityMode);
IPersistentCollection tempObject;
collectionsByKey.TryGetValue(collectionKey, out tempObject);
collectionsByKey[collectionKey] = coll;
IPersistentCollection old = tempObject;
if (old != null)
{
if (old == coll)
{
throw new AssertionFailure("bug adding collection twice");
}
// or should it actually throw an exception?
old.UnsetSession(session);
collectionEntries.Remove(old);
// watch out for a case where old is still referenced
// somewhere in the object graph! (which is a user error)
}
}
public void initializeCollection(IPersistentCollection collection, bool writing)
{
delegat.InitializeCollection(collection, writing);
}
public CollectionCacheEntry(IPersistentCollection collection, ICollectionPersister persister)
{
state = collection.Disassemble(persister);
}
/// <summary> Try to initialize a collection from the cache</summary>
private bool InitializeCollectionFromCache(
object collectionKey, 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();
CollectionEntry[] collectionEntries = null;
var collectionBatch = source.PersistenceContext.BatchFetchQueue.QueryCacheQueue
?.GetCollectionBatch(persister, collectionKey, out collectionEntries);
if (collectionBatch != null || batchSize > 1 && persister.Cache.PreferMultipleGet())
{
// The first item in the array is the item that we want to load
if (collectionBatch != null)
{
if (collectionBatch.Length == 0)
{
return(false); // The key was already checked
}
batchSize = collectionBatch.Length;
}
if (collectionBatch == null)
{
collectionEntries = new CollectionEntry[batchSize];
collectionBatch = source.PersistenceContext.BatchFetchQueue
.GetCollectionBatch(persister, collectionKey, 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, collectionKey, true));
}
var cacheKey = source.GenerateCacheKey(collectionKey, persister.KeyType, persister.Role);
var cachedObject = persister.Cache.Get(cacheKey, source.Timestamp);
return(Assemble(cacheKey, cachedObject, persister, source, collection, collectionKey, true));
}
public async Task DeleteRowsAsync(IPersistentCollection collection, object id, ISessionImplementor session, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (!isInverse && RowDeleteEnabled)
{
if (log.IsDebugEnabled())
{
log.Debug("Deleting rows of collection: {0}", MessageHelper.CollectionInfoString(this, collection, id, session));
}
bool deleteByIndex = !IsOneToMany && hasIndex && !indexContainsFormula;
try
{
// delete all the deleted entries
var offset = 0;
var count = 0;
foreach (var entry in await(collection.GetDeletesAsync(this, !deleteByIndex, cancellationToken)).ConfigureAwait(false))
{
DbCommand st;
var expectation = Expectations.AppropriateExpectation(deleteCheckStyle);
//var callable = DeleteCallable;
var commandInfo = GetDeleteCommand(deleteByIndex, entry, out var columnNullness);
var useBatch = expectation.CanBeBatched;
if (useBatch)
{
st = await(session.Batcher.PrepareBatchCommandAsync(
commandInfo.CommandType, commandInfo.Text, commandInfo.ParameterTypes, cancellationToken)).ConfigureAwait(false);
}
else
{
st = await(session.Batcher.PrepareCommandAsync(
commandInfo.CommandType, commandInfo.Text, commandInfo.ParameterTypes, cancellationToken)).ConfigureAwait(false);
}
try
{
var loc = offset;
if (hasIdentifier)
{
await(WriteIdentifierAsync(st, entry, loc, session, cancellationToken)).ConfigureAwait(false);
}
else
{
loc = await(WriteKeyAsync(st, id, loc, session, cancellationToken)).ConfigureAwait(false);
if (deleteByIndex)
{
await(WriteIndexToWhereAsync(st, entry, loc, session, cancellationToken)).ConfigureAwait(false);
}
else
{
await(WriteElementToWhereAsync(st, entry, columnNullness, loc, session, cancellationToken)).ConfigureAwait(false);
}
}
if (useBatch)
{
await(session.Batcher.AddToBatchAsync(expectation, cancellationToken)).ConfigureAwait(false);
}
else
{
expectation.VerifyOutcomeNonBatched(await(session.Batcher.ExecuteNonQueryAsync(st, cancellationToken)).ConfigureAwait(false), st);
}
count++;
}
catch (OperationCanceledException) { throw; }
catch (Exception e)
{
if (useBatch)
{
session.Batcher.AbortBatch(e);
}
throw;
}
finally
{
if (!useBatch)
{
session.Batcher.CloseCommand(st, null);
}
}
}
if (log.IsDebugEnabled())
{
if (count > 0)
{
log.Debug("done deleting collection rows: {0} deleted", count);
}
else
{
log.Debug("no rows to delete");
}
}
}
catch (DbException sqle)
{
throw ADOExceptionHelper.Convert(sqlExceptionConverter, sqle,
"could not delete collection rows: " + MessageHelper.CollectionInfoString(this, collection, id, session));
}
}
}
public LoadingCollectionEntry(IDataReader resultSet, ICollectionPersister persister, object key, IPersistentCollection collection)
{
this.resultSet = resultSet;
this.persister = persister;
this.key = key;
this.collection = collection;
}
/// <summary> Get the snapshot of the pre-flush collection state</summary>
public object GetSnapshot(IPersistentCollection coll)
{
return GetCollectionEntry(coll).Snapshot;
}
protected override int DoUpdateRows(object id, IPersistentCollection collection, ISessionImplementor session)
{
if (ArrayHelper.IsAllFalse(elementColumnIsSettable))
{
return(0);
}
try
{
DbCommand st = null;
IExpectation expectation = Expectations.AppropriateExpectation(UpdateCheckStyle);
//bool callable = UpdateCallable;
bool useBatch = expectation.CanBeBatched;
IEnumerable entries = collection.Entries(this);
int i = 0;
int count = 0;
foreach (object entry in entries)
{
if (collection.NeedsUpdating(entry, i, ElementType))
{
int offset = 0;
if (useBatch)
{
if (st == null)
{
st =
session.Batcher.PrepareBatchCommand(SqlUpdateRowString.CommandType, SqlUpdateRowString.Text,
SqlUpdateRowString.ParameterTypes);
}
}
else
{
st =
session.Batcher.PrepareCommand(SqlUpdateRowString.CommandType, SqlUpdateRowString.Text,
SqlUpdateRowString.ParameterTypes);
}
try
{
//offset += expectation.Prepare(st, Factory.ConnectionProvider.Driver);
int loc = WriteElement(st, collection.GetElement(entry), offset, session);
if (hasIdentifier)
{
WriteIdentifier(st, collection.GetIdentifier(entry, i), loc, session);
}
else
{
loc = WriteKey(st, id, loc, session);
if (HasIndex && !indexContainsFormula)
{
WriteIndexToWhere(st, collection.GetIndex(entry, i, this), loc, session);
}
else
{
// No nullness handled on update: updates does not occurs with sets or bags, and
// indexed collections allowing formula (maps) force their element columns to
// not-nullable.
WriteElementToWhere(st, collection.GetSnapshotElement(entry, i), null, loc, session);
}
}
if (useBatch)
{
session.Batcher.AddToBatch(expectation);
}
else
{
expectation.VerifyOutcomeNonBatched(session.Batcher.ExecuteNonQuery(st), st);
}
}
catch (Exception e)
{
if (useBatch)
{
session.Batcher.AbortBatch(e);
}
throw;
}
finally
{
if (!useBatch)
{
session.Batcher.CloseCommand(st, null);
}
}
count++;
}
i++;
}
return(count);
}
catch (DbException sqle)
{
throw ADOExceptionHelper.Convert(SQLExceptionConverter, sqle,
"could not update collection rows: " + MessageHelper.CollectionInfoString(this, collection, id, session),
SqlUpdateRowString.Text);
}
}
public abstract Task InitializeCollectionAsync(IPersistentCollection collection, bool writing, CancellationToken cancellationToken);
public static Expr Parse(ParserContext pcon, ISeq form, string name)
{
ISeq origForm = form;
FnExpr fn = new FnExpr(Compiler.TagOf(form));
fn.Src = form;
Keyword retKey = Keyword.intern(null, "rettag"); // TODO: make static
object retTag = RT.get(RT.meta(form), retKey);
ObjMethod enclosingMethod = (ObjMethod)Compiler.MethodVar.deref();
fn._hasEnclosingMethod = enclosingMethod != null;
if (((IMeta)form.first()).meta() != null)
{
fn.OnceOnly = RT.booleanCast(RT.get(RT.meta(form.first()), KW_ONCE));
}
fn.ComputeNames(form, name);
List <string> prims = new List <string>();
//arglist might be preceded by symbol naming this fn
Symbol nm = RT.second(form) as Symbol;
if (nm != null)
{
fn.ThisName = nm.Name;
form = RT.cons(Compiler.FnSym, RT.next(RT.next(form)));
}
// Normalize body
//now (fn [args] body...) or (fn ([args] body...) ([args2] body2...) ...)
//turn former into latter
if (RT.second(form) is IPersistentVector)
{
form = RT.list(Compiler.FnSym, RT.next(form));
}
fn.SpanMap = (IPersistentMap)Compiler.SourceSpanVar.deref();
GenContext newContext = null;
GenContext context = Compiler.CompilerContextVar.deref() as GenContext ?? Compiler.EvalContext;
newContext = context.WithNewDynInitHelper(fn.InternalName + "__dynInitHelper_" + RT.nextID().ToString());
Var.pushThreadBindings(RT.map(Compiler.CompilerContextVar, newContext));
try
{
try
{
Var.pushThreadBindings(RT.mapUniqueKeys(
Compiler.ConstantsVar, PersistentVector.EMPTY,
Compiler.ConstantIdsVar, new IdentityHashMap(),
Compiler.KeywordsVar, PersistentHashMap.EMPTY,
Compiler.VarsVar, PersistentHashMap.EMPTY,
Compiler.KeywordCallsitesVar, PersistentVector.EMPTY,
Compiler.ProtocolCallsitesVar, PersistentVector.EMPTY,
Compiler.VarCallsitesVar, Compiler.EmptyVarCallSites(),
Compiler.NoRecurVar, null));
SortedDictionary <int, FnMethod> methods = new SortedDictionary <int, FnMethod>();
FnMethod variadicMethod = null;
bool usesThis = false;
for (ISeq s = RT.next(form); s != null; s = RT.next(s))
{
FnMethod f = FnMethod.Parse(fn, (ISeq)RT.first(s), retTag);
if (f.UsesThis)
{
//Console.WriteLine("{0} uses this",fn.Name);
usesThis = true;
}
if (f.IsVariadic)
{
if (variadicMethod == null)
{
variadicMethod = f;
}
else
{
throw new ParseException("Can't have more than 1 variadic overload");
}
}
else if (!methods.ContainsKey(f.RequiredArity))
{
methods[f.RequiredArity] = f;
}
else
{
throw new ParseException("Can't have 2 overloads with the same arity.");
}
if (f.Prim != null)
{
prims.Add(f.Prim);
}
}
if (variadicMethod != null && methods.Count > 0 && methods.Keys.Max() >= variadicMethod.NumParams)
{
throw new ParseException("Can't have fixed arity methods with more params than the variadic method.");
}
fn.CanBeDirect = !fn._hasEnclosingMethod && fn.Closes.count() == 0 && !usesThis;
IPersistentCollection allMethods = null;
foreach (FnMethod method in methods.Values)
{
allMethods = RT.conj(allMethods, method);
}
if (variadicMethod != null)
{
allMethods = RT.conj(allMethods, variadicMethod);
}
if (fn.CanBeDirect)
{
for (ISeq s = RT.seq(allMethods); s != null; s = s.next())
{
FnMethod fm = s.first() as FnMethod;
if (fm.Locals != null)
{
for (ISeq sl = RT.seq(RT.keys(fm.Locals)); sl != null; sl = sl.next())
{
LocalBinding lb = sl.first() as LocalBinding;
if (lb.IsArg)
{
lb.Index -= 1;
}
}
}
}
}
fn.Methods = allMethods;
fn._variadicMethod = variadicMethod;
fn.Keywords = (IPersistentMap)Compiler.KeywordsVar.deref();
fn.Vars = (IPersistentMap)Compiler.VarsVar.deref();
fn.Constants = (PersistentVector)Compiler.ConstantsVar.deref();
fn.KeywordCallsites = (IPersistentVector)Compiler.KeywordCallsitesVar.deref();
fn.ProtocolCallsites = (IPersistentVector)Compiler.ProtocolCallsitesVar.deref();
fn.VarCallsites = (IPersistentSet)Compiler.VarCallsitesVar.deref();
fn.ConstantsID = RT.nextID();
}
finally
{
Var.popThreadBindings();
}
IPersistentMap fmeta = RT.meta(origForm);
if (fmeta != null)
{
fmeta = fmeta.without(RT.LineKey).without(RT.ColumnKey).without(RT.SourceSpanKey).without(RT.FileKey).without(retKey);
}
fn._hasMeta = RT.count(fmeta) > 0;
IPersistentVector primTypes = PersistentVector.EMPTY;
foreach (string typename in prims)
{
primTypes = primTypes.cons(Type.GetType(typename));
}
fn.Compile(
fn.IsVariadic ? typeof(RestFn) : typeof(AFunction),
null,
primTypes,
fn.OnceOnly,
newContext);
if (fn.SupportsMeta)
{
return(new MetaExpr(fn, MapExpr.Parse(pcon.EvalOrExpr(), fmeta)));
}
else
{
return(fn);
}
}
finally
{
if (newContext != null)
{
Var.popThreadBindings();
}
}
}
private static Task ProcessDereferencedCollectionAsync(IPersistentCollection coll, ISessionImplementor session, CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(Task.FromCanceled <object>(cancellationToken));
}
try
{
IPersistenceContext persistenceContext = session.PersistenceContext;
CollectionEntry entry = persistenceContext.GetCollectionEntry(coll);
ICollectionPersister loadedPersister = entry.LoadedPersister;
if (log.IsDebugEnabled() && loadedPersister != null)
{
log.Debug("Collection dereferenced: {0}", MessageHelper.CollectionInfoString(loadedPersister, coll, entry.LoadedKey, session));
}
// do a check
bool hasOrphanDelete = loadedPersister != null && loadedPersister.HasOrphanDelete;
if (hasOrphanDelete)
{
object ownerId = loadedPersister.OwnerEntityPersister.GetIdentifier(coll.Owner);
// TODO NH Different behavior
//if (ownerId == null)
//{
// // the owning entity may have been deleted and its identifier unset due to
// // identifier-rollback; in which case, try to look up its identifier from
// // the persistence context
// if (session.Factory.Settings.IsIdentifierRollbackEnabled)
// {
// EntityEntry ownerEntry = persistenceContext.GetEntry(coll.Owner);
// if (ownerEntry != null)
// {
// ownerId = ownerEntry.Id;
// }
// }
// if (ownerId == null)
// {
// throw new AssertionFailure("Unable to determine collection owner identifier for orphan-delete processing");
// }
//}
EntityKey key = session.GenerateEntityKey(ownerId, loadedPersister.OwnerEntityPersister);
object owner = persistenceContext.GetEntity(key);
if (owner == null)
{
return(Task.FromException <object>(new AssertionFailure("collection owner not associated with session: " + loadedPersister.Role)));
}
EntityEntry e = persistenceContext.GetEntry(owner);
//only collections belonging to deleted entities are allowed to be dereferenced in the case of orphan delete
if (e != null && e.Status != Status.Deleted && e.Status != Status.Gone)
{
return(Task.FromException <object>(new HibernateException("A collection with cascade=\"all-delete-orphan\" was no longer referenced by the owning entity instance: " + loadedPersister.Role)));
}
}
// do the work
entry.CurrentPersister = null;
entry.CurrentKey = null;
return(PrepareCollectionForUpdateAsync(coll, entry, session.Factory, cancellationToken));
}
catch (System.Exception ex)
{
return(Task.FromException <object>(ex));
}
}
private static Task PrepareCollectionForUpdateAsync(IPersistentCollection collection, CollectionEntry entry, ISessionFactoryImplementor factory, CancellationToken cancellationToken)
{
//1. record the collection role that this collection is referenced by
//2. decide if the collection needs deleting/creating/updating (but don't actually schedule the action yet)
if (entry.IsProcessed)
{
throw new AssertionFailure("collection was processed twice by flush()");
}
if (cancellationToken.IsCancellationRequested)
{
return(Task.FromCanceled <object>(cancellationToken));
}
try
{
entry.IsProcessed = true;
ICollectionPersister loadedPersister = entry.LoadedPersister;
ICollectionPersister currentPersister = entry.CurrentPersister;
if (loadedPersister != null || currentPersister != null)
{
// it is or was referenced _somewhere_
bool ownerChanged = loadedPersister != currentPersister ||
!currentPersister.KeyType.IsEqual(entry.LoadedKey, entry.CurrentKey, factory);
if (ownerChanged)
{
// do a check
bool orphanDeleteAndRoleChanged = loadedPersister != null &&
currentPersister != null && loadedPersister.HasOrphanDelete;
if (orphanDeleteAndRoleChanged)
{
return(Task.FromException <object>(new HibernateException("Don't change the reference to a collection with cascade=\"all-delete-orphan\": " + loadedPersister.Role)));
}
// do the work
if (currentPersister != null)
{
entry.IsDorecreate = true; // we will need to create new entries
}
if (loadedPersister != null)
{
entry.IsDoremove = true; // we will need to remove ye olde entries
if (entry.IsDorecreate)
{
log.Debug("Forcing collection initialization");
return(collection.ForceInitializationAsync(cancellationToken)); // force initialize!
}
}
}
else if (collection.IsDirty)
{
// else if it's elements changed
entry.IsDoupdate = true;
}
}
return(Task.CompletedTask);
}
catch (System.Exception ex)
{
return(Task.FromException <object>(ex));
}
}
/// <summary>
/// add an (initialized) collection that was created by another session and passed
/// into update() (ie. one with a snapshot and existing state on the database)
/// </summary>
public void AddInitializedDetachedCollection(ICollectionPersister collectionPersister, IPersistentCollection collection)
{
if (collection.IsUnreferenced)
{
//treat it just like a new collection
AddCollection(collection, collectionPersister);
}
else
{
CollectionEntry ce = new CollectionEntry(collection, session.Factory);
AddCollection(collection, ce, collection.Key);
}
}
protected override async Task <int> DoUpdateRowsAsync(object id, IPersistentCollection collection, ISessionImplementor session, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
// we finish all the "removes" first to take care of possible unique
// constraints and so that we can take better advantage of batching
try
{
const int offset = 0;
int count = 0;
if (RowDeleteEnabled)
{
IExpectation deleteExpectation = Expectations.AppropriateExpectation(DeleteCheckStyle);
bool useBatch = deleteExpectation.CanBeBatched;
SqlCommandInfo sql = SqlDeleteRowString;
// update removed rows fks to null
int i = 0;
IEnumerable entries = collection.Entries(this);
foreach (object entry in entries)
{
if (await(collection.NeedsUpdatingAsync(entry, i, ElementType, cancellationToken)).ConfigureAwait(false))
{
DbCommand st = null;
// will still be issued when it used to be null
if (useBatch)
{
st = await(session.Batcher.PrepareBatchCommandAsync(SqlDeleteRowString.CommandType, sql.Text,
SqlDeleteRowString.ParameterTypes, cancellationToken)).ConfigureAwait(false);
}
else
{
st = await(session.Batcher.PrepareCommandAsync(SqlDeleteRowString.CommandType, sql.Text,
SqlDeleteRowString.ParameterTypes, cancellationToken)).ConfigureAwait(false);
}
try
{
int loc = await(WriteKeyAsync(st, id, offset, session, cancellationToken)).ConfigureAwait(false);
await(WriteElementToWhereAsync(st, collection.GetSnapshotElement(entry, i), loc, session, cancellationToken)).ConfigureAwait(false);
if (useBatch)
{
await(session.Batcher.AddToBatchAsync(deleteExpectation, cancellationToken)).ConfigureAwait(false);
}
else
{
deleteExpectation.VerifyOutcomeNonBatched(await(session.Batcher.ExecuteNonQueryAsync(st, cancellationToken)).ConfigureAwait(false), st);
}
}
catch (OperationCanceledException) { throw; }
catch (Exception e)
{
if (useBatch)
{
session.Batcher.AbortBatch(e);
}
throw;
}
finally
{
if (!useBatch && st != null)
{
session.Batcher.CloseCommand(st, null);
}
}
count++;
}
i++;
}
}
if (RowInsertEnabled)
{
IExpectation insertExpectation = Expectations.AppropriateExpectation(InsertCheckStyle);
//bool callable = InsertCallable;
bool useBatch = insertExpectation.CanBeBatched;
SqlCommandInfo sql = SqlInsertRowString;
// now update all changed or added rows fks
int i = 0;
IEnumerable entries = collection.Entries(this);
foreach (object entry in entries)
{
if (await(collection.NeedsUpdatingAsync(entry, i, ElementType, cancellationToken)).ConfigureAwait(false))
{
DbCommand st = null;
if (useBatch)
{
st = await(session.Batcher.PrepareBatchCommandAsync(SqlInsertRowString.CommandType, sql.Text,
SqlInsertRowString.ParameterTypes, cancellationToken)).ConfigureAwait(false);
}
else
{
st = await(session.Batcher.PrepareCommandAsync(SqlInsertRowString.CommandType, sql.Text,
SqlInsertRowString.ParameterTypes, cancellationToken)).ConfigureAwait(false);
}
try
{
//offset += insertExpectation.Prepare(st, Factory.ConnectionProvider.Driver);
int loc = await(WriteKeyAsync(st, id, offset, session, cancellationToken)).ConfigureAwait(false);
if (HasIndex && !indexContainsFormula)
{
loc = await(WriteIndexToWhereAsync(st, collection.GetIndex(entry, i, this), loc, session, cancellationToken)).ConfigureAwait(false);
}
await(WriteElementToWhereAsync(st, collection.GetElement(entry), loc, session, cancellationToken)).ConfigureAwait(false);
if (useBatch)
{
await(session.Batcher.AddToBatchAsync(insertExpectation, cancellationToken)).ConfigureAwait(false);
}
else
{
insertExpectation.VerifyOutcomeNonBatched(await(session.Batcher.ExecuteNonQueryAsync(st, cancellationToken)).ConfigureAwait(false), st);
}
}
catch (OperationCanceledException) { throw; }
catch (Exception e)
{
if (useBatch)
{
session.Batcher.AbortBatch(e);
}
throw;
}
finally
{
if (!useBatch && st != null)
{
session.Batcher.CloseCommand(st, null);
}
}
count++;
}
i++;
}
}
return(count);
}
catch (DbException sqle)
{
throw ADOExceptionHelper.Convert(SQLExceptionConverter, sqle, "could not update collection rows: " + MessageHelper.CollectionInfoString(this, collection, id, session));
}
}
/// <summary>
/// Register a collection for non-lazy loading at the end of the two-phase load
/// </summary>
public void AddNonLazyCollection(IPersistentCollection collection)
{
nonlazyCollections.Add(collection);
}
public Task RecreateAsync(IPersistentCollection collection, object key, ISessionImplementor session, CancellationToken cancellationToken)
{
return(Task.CompletedTask);
// TODO: Add CollectionPersisterStub.Recreate implementation
}
protected override IEnumerable GetNewCollectionContent(IPersistentCollection newCollection)
{
return((ICollection)newCollection);
}
public void DeleteRows(IPersistentCollection collection, object key, ISessionImplementor session)
{
// TODO: Add CollectionPersisterStub.DeleteRows implementation
}
protected abstract Task <int> DoUpdateRowsAsync(object key, IPersistentCollection collection, ISessionImplementor session, CancellationToken cancellationToken);
public override void Execute()
{
object id = GetKey();
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);
}
var entry = Session.PersistenceContext.GetCollectionEntry(collection);
entry.AfterAction(collection);
Evict();
PostUpdate();
if (statsEnabled)
{
stopwatch.Stop();
Session.Factory.StatisticsImplementor.UpdateCollection(Persister.Role, stopwatch.Elapsed);
}
}
public async Task RecreateAsync(IPersistentCollection collection, object id, ISessionImplementor session, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (!isInverse && RowInsertEnabled)
{
if (log.IsDebugEnabled())
{
log.Debug("Inserting collection: {0}", MessageHelper.CollectionInfoString(this, collection, id, session));
}
try
{
IExpectation expectation = null;
bool useBatch = false;
int i = 0;
int count = 0;
// create all the new entries
foreach (var entry in collection.Entries(this))
{
// Init, if we're on the first element.
if (count == 0)
{
expectation = Expectations.AppropriateExpectation(insertCheckStyle);
await(collection.PreInsertAsync(this, cancellationToken)).ConfigureAwait(false);
//bool callable = InsertCallable;
useBatch = expectation.CanBeBatched;
}
if (collection.EntryExists(entry, i))
{
object entryId;
if (!IsIdentifierAssignedByInsert)
{
// NH Different implementation: write once
entryId = await(PerformInsertAsync(id, collection, expectation, entry, i, useBatch, false, session, cancellationToken)).ConfigureAwait(false);
}
else
{
entryId = await(PerformInsertAsync(id, collection, entry, i, session, cancellationToken)).ConfigureAwait(false);
}
collection.AfterRowInsert(this, entry, i, entryId);
count++;
}
i++;
}
if (log.IsDebugEnabled())
{
if (count > 0)
{
log.Debug("done inserting collection: {0} rows inserted", count);
}
else
{
log.Debug("collection was empty");
}
}
}
catch (DbException sqle)
{
throw ADOExceptionHelper.Convert(sqlExceptionConverter, sqle,
"could not insert collection: " + MessageHelper.CollectionInfoString(this, collection, id, session));
}
}
}
public CollectionUpdateAction(IPersistentCollection collection, ICollectionPersister persister, object key,
bool emptySnapshot, ISessionImplementor session)
: base(persister, collection, key, session)
{
this.emptySnapshot = emptySnapshot;
}
public virtual void Assemble(IPersistentCollection collection, ICollectionPersister persister, object owner)
{
collection.InitializeFromCache(persister, state, owner);
collection.AfterInitialize(persister);
}
/// <summary>
/// Retrieve the collection that is being loaded as part of processing this result set.
/// </summary>
/// <param name="persister">The persister for the collection being requested. </param>
/// <param name="key">The key of the collection being requested. </param>
/// <returns> The loading collection (see discussion above). </returns>
/// <remarks>
/// Basically, there are two valid return values from this method:<ul>
/// <li>an instance of {@link PersistentCollection} which indicates to
/// continue loading the result set row data into that returned collection
/// instance; this may be either an instance already associated and in the
/// midst of being loaded, or a newly instantiated instance as a matching
/// associated collection was not found.</li>
/// <li><i>null</i> indicates to ignore the corresponding result set row
/// data relating to the requested collection; this indicates that either
/// the collection was found to already be associated with the persistence
/// context in a fully loaded state, or it was found in a loading state
/// associated with another result set processing context.</li>
/// </ul>
/// </remarks>
public IPersistentCollection GetLoadingCollection(ICollectionPersister persister, object key)
{
EntityMode em = loadContexts.PersistenceContext.Session.EntityMode;
CollectionKey collectionKey = new CollectionKey(persister, key, em);
if (log.IsDebugEnabled)
{
log.Debug("starting attempt to find loading collection [" + MessageHelper.InfoString(persister.Role, key) + "]");
}
LoadingCollectionEntry loadingCollectionEntry = loadContexts.LocateLoadingCollectionEntry(collectionKey);
if (loadingCollectionEntry == null)
{
// look for existing collection as part of the persistence context
IPersistentCollection collection = loadContexts.PersistenceContext.GetCollection(collectionKey);
if (collection != null)
{
if (collection.WasInitialized)
{
log.Debug("collection already initialized; ignoring");
return(null); // ignore this row of results! Note the early exit
}
else
{
// initialize this collection
log.Debug("collection not yet initialized; initializing");
}
}
else
{
object owner = loadContexts.PersistenceContext.GetCollectionOwner(key, persister);
bool newlySavedEntity = owner != null && loadContexts.PersistenceContext.GetEntry(owner).Status != Status.Loading && em != EntityMode.Xml;
if (newlySavedEntity)
{
// important, to account for newly saved entities in query
// todo : some kind of check for new status...
log.Debug("owning entity already loaded; ignoring");
return(null);
}
else
{
// create one
if (log.IsDebugEnabled)
{
log.Debug("instantiating new collection [key=" + key + ", rs=" + resultSet + "]");
}
collection = persister.CollectionType.Instantiate(loadContexts.PersistenceContext.Session, persister, key);
}
}
collection.BeforeInitialize(persister, -1);
collection.BeginRead();
localLoadingCollectionKeys.Add(collectionKey);
loadContexts.RegisterLoadingCollectionXRef(collectionKey, new LoadingCollectionEntry(resultSet, persister, key, collection));
return(collection);
}
else
{
if (loadingCollectionEntry.ResultSet == resultSet)
{
log.Debug("found loading collection bound to current result set processing; reading row");
return(loadingCollectionEntry.Collection);
}
else
{
// ignore this row, the collection is in process of
// being loaded somewhere further "up" the stack
log.Debug("collection is already being initialized; ignoring row");
return(null);
}
}
}
public override async Task ExecuteAsync(CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
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();
}
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);
}
Session.PersistenceContext.GetCollectionEntry(collection).AfterAction(collection);
await(EvictAsync(cancellationToken)).ConfigureAwait(false);
await(PostUpdateAsync(cancellationToken)).ConfigureAwait(false);
if (statsEnabled)
{
stopwatch.Stop();
Session.Factory.StatisticsImplementor.UpdateCollection(Persister.Role, stopwatch.Elapsed);
}
}
protected IEnumerable <AuditLogEntry> CreateCollectionEntries(object affectedOwnerOrNull, Guid id, IPersistentCollection collection)
{
var typeName = affectedOwnerOrNull.GetType().Name;
var excludedProperties = GetExcludedProperties(affectedOwnerOrNull.GetType());
if (excludedProperties.Any(p => collection.Role.EndsWith(p)) || !(collection.GetValue() is IEnumerable <EntityBase>))
{
yield break;
}
var newList = ((IEnumerable <EntityBase>)collection.GetValue()).ToList();
var oldList = ((List <object>)collection.StoredSnapshot).OfType <EntityBase>().ToList();
foreach (
var entry in
ParseCollectionEntries(oldList, newList, typeName,
collection.Role.Replace("Prototype1.Declarations.Entities." + typeName + ".", ""), id))
{
yield return(entry);
}
}
/// <summary>
/// Add a new collection (ie. a newly created one, just instantiated by the
/// application, with no database state or snapshot)
/// </summary>
/// <param name="collection">The collection to be associated with the persistence context </param>
/// <param name="persister"></param>
public void AddNewCollection(ICollectionPersister persister, IPersistentCollection collection)
{
AddCollection(collection, persister);
}
public abstract void InitializeCollection(IPersistentCollection collection, bool writing);
/// <summary> Add a collection to the cache, creating a new collection entry for it </summary>
/// <param name="collection">The collection for which we are adding an entry. </param>
/// <param name="persister">The collection persister </param>
private void AddCollection(IPersistentCollection collection, ICollectionPersister persister)
{
CollectionEntry ce = new CollectionEntry(persister, collection);
collectionEntries[collection] = ce;
}
internal bool ShouldTargetsDirtyFlagBeCleared(IPersistentCollection targetPc, IPersistentCollection originalPc, IEnumerable original)
{
if (targetPc == null)
{
return(false);
}
if (originalPc == null)
{
if (!targetPc.IsDirty && AreCollectionElementsEqual(original, (IEnumerable)targetPc))
{
return(true);
}
}
else
{
if (!originalPc.IsDirty)
{
return(true);
}
}
return(false);
}
/// <summary> add a collection we just pulled out of the cache (does not need initializing)</summary>
public CollectionEntry AddInitializedCollection(ICollectionPersister persister, IPersistentCollection collection,
object id)
{
CollectionEntry ce = new CollectionEntry(collection, persister, id, flushing);
ce.PostInitialize(collection);
AddCollection(collection, ce, id);
return ce;
}
/// <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, persistenceContext);
return(true);
}
}
}
/// <summary> Register a <tt>PersistentCollection</tt> object for an array.
/// Associates a holder with an array - MUST be called after loading
/// array, since the array instance is not created until endLoad().
/// </summary>
public void AddCollectionHolder(IPersistentCollection holder)
{
//TODO:refactor + make this method private
arrayHolders[holder.GetValue()] = holder;
}
public bool IsSnapshotEmpty(IPersistentCollection collection)
{
return(collection.WasInitialized && (LoadedPersister == null || LoadedPersister.IsMutable) && collection.IsSnapshotEmpty(Snapshot));
}
public PostCollectionRemoveEvent(ICollectionPersister collectionPersister, IPersistentCollection collection,
IEventSource source, object loadedOwner)
: base(collectionPersister, collection, source, loadedOwner, GetOwnerIdOrNull(loadedOwner, source)) {}
public void PostInitialize(IPersistentCollection collection)
{
snapshot = LoadedPersister.IsMutable ? collection.GetSnapshot(LoadedPersister) : null;
collection.SetSnapshot(loadedKey, role, snapshot);
}
private static bool CollectionIsInitialized(object collection)
{
IPersistentCollection pc = collection as IPersistentCollection;
return(pc == null || pc.WasInitialized);
}
public void Recreate(IPersistentCollection collection, object key, ISessionImplementor session)
{
// TODO: Add CollectionPersisterStub.Recreate implementation
}
