/**
* process any unreferenced collections and then inspect all known collections, scheduling
* creates/removes/updates
*/
private void flushCollections(EventSource session) throws HibernateException {
if (LOG.isTraceEnabled()) {
LOG.trace("Processing unreferenced collections");
}
List list = IdentityMap.entries(session.getPersistenceContext().getCollectionEntries());
int size = list.size();
for (int i = 0; i < size; i++) {
Map.Entry me = (Map.Entry) list.get(i);
CollectionEntry ce = (CollectionEntry) me.getValue();
if (!ce.isReached() && !ce.isIgnore()) {
Collections.processUnreachableCollection((PersistentCollection) me.getKey(), session);
}
}
// Schedule updates to collections:
if (LOG.isTraceEnabled()) {
LOG.trace("Scheduling collection removes/(re)creates/updates");
}
list = IdentityMap.entries(session.getPersistenceContext().getCollectionEntries());
size = list.size();
ActionQueue actionQueue = session.getActionQueue();
for (int i = 0; i < size; i++) {
Map.Entry me = (Map.Entry) list.get(i);
PersistentCollection coll = (PersistentCollection) me.getKey();
CollectionEntry ce = (CollectionEntry) me.getValue();
if (ce.isDorecreate()) {
session.getInterceptor().onCollectionRecreate(coll, ce.getCurrentKey());
actionQueue.addAction(
new CollectionRecreateAction(
coll, ce.getCurrentPersister(), ce.getCurrentKey(), session));
}
if (ce.isDoremove()) {
session.getInterceptor().onCollectionRemove(coll, ce.getLoadedKey());
actionQueue.addAction(
new CollectionRemoveAction(
coll,
ce.getLoadedPersister(),
ce.getLoadedKey(),
ce.isSnapshotEmpty(coll),
session));
}
if (ce.isDoupdate()) {
session.getInterceptor().onCollectionUpdate(coll, ce.getLoadedKey());
actionQueue.addAction(
new CollectionUpdateAction(
coll,
ce.getLoadedPersister(),
ce.getLoadedKey(),
ce.isSnapshotEmpty(coll),
session));
}
}
actionQueue.sortCollectionActions();
}
/**
* 1. Recreate the collection key -> collection map 2. rebuild the collection entries 3. call
* Interceptor.postFlush()
*/
protected void postFlush(SessionImplementor session) throws HibernateException {
LOG.trace("Post flush");
final PersistenceContext persistenceContext = session.getPersistenceContext();
persistenceContext.getCollectionsByKey().clear();
persistenceContext
.getBatchFetchQueue()
.clearSubselects(); // the database has changed now, so the subselect results need to be
// invalidated
Iterator iter = persistenceContext.getCollectionEntries().entrySet().iterator();
while (iter.hasNext()) {
Map.Entry me = (Map.Entry) iter.next();
CollectionEntry collectionEntry = (CollectionEntry) me.getValue();
PersistentCollection persistentCollection = (PersistentCollection) me.getKey();
collectionEntry.postFlush(persistentCollection);
if (collectionEntry.getLoadedPersister() == null) {
// if the collection is dereferenced, remove from the session cache
// iter.remove(); //does not work, since the entrySet is not backed by the set
persistenceContext.getCollectionEntries().remove(persistentCollection);
} else {
// otherwise recreate the mapping between the collection and its key
CollectionKey collectionKey =
new CollectionKey(collectionEntry.getLoadedPersister(), collectionEntry.getLoadedKey());
persistenceContext.getCollectionsByKey().put(collectionKey, persistentCollection);
}
}
session.getInterceptor().postFlush(new LazyIterator(persistenceContext.getEntitiesByKey()));
}
/**
* Compile the query (generate the SQL).
*
* @throws org.hibernate.MappingException Indicates problems resolving things referenced in the
* query.
* @throws org.hibernate.QueryException Generally some form of syntatic failure.
*/
private void compile() throws QueryException, MappingException {
LOG.trace("Compiling query");
try {
ParserHelper.parse(
new PreprocessingParser(tokenReplacements),
queryString,
ParserHelper.HQL_SEPARATORS,
this);
renderSQL();
} catch (QueryException qe) {
qe.setQueryString(queryString);
throw qe;
} catch (MappingException me) {
throw me;
} catch (Exception e) {
LOG.debug("Unexpected query compilation problem", e);
e.printStackTrace();
QueryException qe = new QueryException("Incorrect query syntax", e);
qe.setQueryString(queryString);
throw qe;
}
postInstantiate();
compiled = true;
}
/**
* Handle the given update event.
*
* @param event The update event to be handled.
*/
public void onSaveOrUpdate(SaveOrUpdateEvent event) {
final SessionImplementor source = event.getSession();
final Object object = event.getObject();
final Serializable requestedId = event.getRequestedId();
if (requestedId != null) {
// assign the requested id to the proxy, *before*
// reassociating the proxy
if (object instanceof HibernateProxy) {
((HibernateProxy) object).getHibernateLazyInitializer().setIdentifier(requestedId);
}
}
// For an uninitialized proxy, noop, don't even need to return an id, since it is never a save()
if (reassociateIfUninitializedProxy(object, source))
LOG.trace("Reassociated uninitialized proxy");
else {
// initialize properties of the event:
final Object entity = source.getPersistenceContext().unproxyAndReassociate(object);
event.setEntity(entity);
event.setEntry(source.getPersistenceContext().getEntry(entity));
// return the id in the event object
event.setResultId(performSaveOrUpdate(event));
}
}
/**
* 1. Recreate the collection key -> collection map 2. rebuild the collection entries 3. call
* Interceptor.postFlush()
*/
protected void postFlush(SessionImplementor session) throws HibernateException {
LOG.trace("Post flush");
final PersistenceContext persistenceContext = session.getPersistenceContext();
persistenceContext.getCollectionsByKey().clear();
// the database has changed now, so the subselect results need to be invalidated
// the batch fetching queues should also be cleared - especially the collection batch fetching
// one
persistenceContext.getBatchFetchQueue().clear();
for (Map.Entry<PersistentCollection, CollectionEntry> me :
IdentityMap.concurrentEntries(persistenceContext.getCollectionEntries())) {
CollectionEntry collectionEntry = me.getValue();
PersistentCollection persistentCollection = me.getKey();
collectionEntry.postFlush(persistentCollection);
if (collectionEntry.getLoadedPersister() == null) {
// if the collection is dereferenced, unset its session reference and remove from the
// session cache
// iter.remove(); //does not work, since the entrySet is not backed by the set
persistentCollection.unsetSession(session);
persistenceContext.getCollectionEntries().remove(persistentCollection);
} else {
// otherwise recreate the mapping between the collection and its key
CollectionKey collectionKey =
new CollectionKey(collectionEntry.getLoadedPersister(), collectionEntry.getLoadedKey());
persistenceContext.getCollectionsByKey().put(collectionKey, persistentCollection);
}
}
}
/**
* Coordinates the processing necessary to get things ready for executions as db calls by preping
* the session caches and moving the appropriate entities and collections to their respective
* execution queues.
*
* @param event The flush event.
* @throws HibernateException Error flushing caches to execution queues.
*/
protected void flushEverythingToExecutions(FlushEvent event) throws HibernateException {
LOG.trace("Flushing session");
EventSource session = event.getSession();
final PersistenceContext persistenceContext = session.getPersistenceContext();
session.getInterceptor().preFlush(new LazyIterator(persistenceContext.getEntitiesByKey()));
prepareEntityFlushes(session, persistenceContext);
// we could move this inside if we wanted to
// tolerate collection initializations during
// collection dirty checking:
prepareCollectionFlushes(persistenceContext);
// now, any collections that are initialized
// inside this block do not get updated - they
// are ignored until the next flush
persistenceContext.setFlushing(true);
try {
int entityCount = flushEntities(event, persistenceContext);
int collectionCount = flushCollections(session, persistenceContext);
event.setNumberOfEntitiesProcessed(entityCount);
event.setNumberOfCollectionsProcessed(collectionCount);
} finally {
persistenceContext.setFlushing(false);
}
// some statistics
logFlushResults(event);
}
public void injectSessionFactory(SessionFactoryImplementor factory) {
if (this.factory != null) {
LOG.scopingTypesToSessionFactoryAfterAlreadyScoped(this.factory, factory);
} else {
LOG.trace("Scoping types to session factory " + factory);
}
this.factory = factory;
}
protected Serializable entityIsPersistent(SaveOrUpdateEvent event) throws HibernateException {
LOG.trace("Ignoring persistent instance");
EntityEntry entityEntry = event.getEntry();
if (entityEntry == null) {
throw new AssertionFailure("entity was transient or detached");
} else {
if (entityEntry.getStatus() == Status.DELETED) {
throw new AssertionFailure("entity was deleted");
}
final SessionFactoryImplementor factory = event.getSession().getFactory();
Serializable requestedId = event.getRequestedId();
Serializable savedId;
if (requestedId == null) {
savedId = entityEntry.getId();
} else {
final boolean isEqual =
!entityEntry
.getPersister()
.getIdentifierType()
.isEqual(
requestedId, entityEntry.getId(), event.getSession().getEntityMode(), factory);
if (isEqual) {
throw new PersistentObjectException(
"object passed to save() was already persistent: "
+ MessageHelper.infoString(entityEntry.getPersister(), requestedId, factory));
}
savedId = requestedId;
}
if (LOG.isTraceEnabled())
LOG.trace(
"Object already associated with session: "
+ MessageHelper.infoString(entityEntry.getPersister(), savedId, factory));
return savedId;
}
}
@Override
public <T> T delegateWork(WorkExecutorVisitable<T> work, boolean transacted)
throws HibernateException {
boolean wasAutoCommit = false;
try {
// todo : should we use a connection proxy here?
Connection connection = connectionProvider().getConnection();
try {
if (transacted) {
if (connection.getAutoCommit()) {
wasAutoCommit = true;
connection.setAutoCommit(false);
}
}
T result = work.accept(new WorkExecutor<T>(), connection);
if (transacted) {
connection.commit();
}
return result;
} catch (Exception e) {
try {
if (transacted && !connection.isClosed()) {
connection.rollback();
}
} catch (Exception ignore) {
LOG.unableToRollbackConnection(ignore);
}
if (e instanceof HibernateException) {
throw (HibernateException) e;
} else if (e instanceof SQLException) {
throw sqlExceptionHelper().convert((SQLException) e, "error performing isolated work");
} else {
throw new HibernateException("error performing isolated work", e);
}
} finally {
if (transacted && wasAutoCommit) {
try {
connection.setAutoCommit(true);
} catch (Exception ignore) {
LOG.trace("was unable to reset connection back to auto-commit");
}
}
try {
connectionProvider().closeConnection(connection);
} catch (Exception ignore) {
LOG.unableToReleaseIsolatedConnection(ignore);
}
}
} catch (SQLException sqle) {
throw sqlExceptionHelper().convert(sqle, "unable to obtain isolated JDBC connection");
}
}
/**
* 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)
*/
@SuppressWarnings({"JavaDoc"})
private static void prepareCollectionForUpdate(
PersistentCollection collection, CollectionEntry entry, SessionFactoryImplementor factory) {
if (entry.isProcessed()) {
throw new AssertionFailure("collection was processed twice by flush()");
}
entry.setProcessed(true);
final CollectionPersister loadedPersister = entry.getLoadedPersister();
final CollectionPersister currentPersister = entry.getCurrentPersister();
if (loadedPersister != null
|| currentPersister != null) { // it is or was referenced _somewhere_
boolean ownerChanged =
loadedPersister != currentPersister
|| // if either its role changed,
!currentPersister
.getKeyType()
.isEqual( // or its key changed
entry.getLoadedKey(), entry.getCurrentKey(), factory);
if (ownerChanged) {
// do a check
final boolean 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.getRole());
}
// do the work
if (currentPersister != null) {
entry.setDorecreate(true); // we will need to create new entries
}
if (loadedPersister != null) {
entry.setDoremove(true); // we will need to remove ye olde entries
if (entry.isDorecreate()) {
LOG.trace("Forcing collection initialization");
collection.forceInitialization();
}
}
} else if (collection.isDirty()) {
// the collection's elements have changed
entry.setDoupdate(true);
}
}
}
/** {@inheritDoc} */
public final void bind(PreparedStatement st, J value, int index, WrapperOptions options)
throws SQLException {
if (value == null) {
if (LOG.isTraceEnabled()) {
LOG.trace(
String.format(
NULL_BIND_MSG_TEMPLATE,
index,
JdbcTypeNameMapper.getTypeName(sqlDescriptor.getSqlType())));
}
st.setNull(index, sqlDescriptor.getSqlType());
} else {
if (LOG.isTraceEnabled()) {
LOG.trace(
String.format(
BIND_MSG_TEMPLATE,
index,
JdbcTypeNameMapper.getTypeName(sqlDescriptor.getSqlType()),
getJavaDescriptor().extractLoggableRepresentation(value)));
}
doBind(st, value, index, options);
}
}
/* 34: */
/* 35: */ public Date seed(SessionImplementor session) /* 36: */ {
/* 37: 67 */ if (session == null)
/* 38: */ {
/* 39: 68 */ LOG.trace("Incoming session was null; using current jvm time");
/* 40: 69 */ return super.seed(session);
/* 41: */ }
/* 42: 71 */ if (!session.getFactory().getDialect().supportsCurrentTimestampSelection())
/* 43: */ {
/* 44: 72 */ LOG.debug(
"Falling back to vm-based timestamp, as dialect does not support current timestamp selection");
/* 45: 73 */ return super.seed(session);
/* 46: */ }
/* 47: 76 */ return getCurrentTimestamp(session);
/* 48: */ }
/**
* We encountered a delete request on a transient instance.
*
* <p>This is a deviation from historical Hibernate (pre-3.2) behavior to align with the JPA spec,
* which states that transient entities can be passed to remove operation in which case cascades
* still need to be performed.
*
* @param session The session which is the source of the event
* @param entity The entity being delete processed
* @param cascadeDeleteEnabled Is cascading of deletes enabled
* @param persister The entity persister
* @param transientEntities A cache of already visited transient entities (to avoid infinite
* recursion).
*/
protected void deleteTransientEntity(
EventSource session,
Object entity,
boolean cascadeDeleteEnabled,
EntityPersister persister,
Set transientEntities) {
LOG.handlingTransientEntity();
if (transientEntities.contains(entity)) {
LOG.trace("Already handled transient entity; skipping");
return;
}
transientEntities.add(entity);
cascadeBeforeDelete(session, persister, entity, null, transientEntities);
cascadeAfterDelete(session, persister, entity, transientEntities);
}
/**
* Execute all SQL and second-level cache updates, in a special order so that foreign-key
* constraints cannot be violated:
*
* <ol>
* <li>Inserts, in the order they were performed
* <li>Updates
* <li>Deletion of collection elements
* <li>Insertion of collection elements
* <li>Deletes, in the order they were performed
* </ol>
*/
protected void performExecutions(EventSource session) throws HibernateException {
LOG.trace("Executing flush");
try {
session.getTransactionCoordinator().getJdbcCoordinator().flushBeginning();
// we need to lock the collection caches before
// executing entity inserts/updates in order to
// account for bidi associations
session.getActionQueue().prepareActions();
session.getActionQueue().executeActions();
} finally {
session.getTransactionCoordinator().getJdbcCoordinator().flushEnding();
}
}
private void logDirtyProperties(
Serializable id, int[] dirtyProperties, EntityPersister persister) {
if (LOG.isTraceEnabled() && dirtyProperties != null && dirtyProperties.length > 0) {
final String[] allPropertyNames = persister.getPropertyNames();
final String[] dirtyPropertyNames = new String[dirtyProperties.length];
for (int i = 0; i < dirtyProperties.length; i++) {
dirtyPropertyNames[i] = allPropertyNames[dirtyProperties[i]];
}
LOG.trace(
"Found dirty properties ["
+ MessageHelper.infoString(persister.getEntityName(), id)
+ "] : "
+ dirtyPropertyNames);
}
}
@Override
public void releaseResources() {
log.trace("Releasing JDBC resources");
for (Map.Entry<Statement, Set<ResultSet>> entry : xref.entrySet()) {
if (entry.getValue() != null) {
closeAll(entry.getValue());
}
close(entry.getKey());
}
xref.clear();
closeAll(unassociatedResultSets);
if (blobs != null) {
for (Blob blob : blobs) {
try {
blob.free();
} catch (SQLException e) {
log.debugf("Unable to free JDBC Blob reference [%s]", e.getMessage());
}
}
blobs.clear();
}
if (clobs != null) {
for (Clob clob : clobs) {
try {
clob.free();
} catch (SQLException e) {
log.debugf("Unable to free JDBC Clob reference [%s]", e.getMessage());
}
}
clobs.clear();
}
if (nclobs != null) {
for (NClob nclob : nclobs) {
try {
nclob.free();
} catch (SQLException e) {
log.debugf("Unable to free JDBC NClob reference [%s]", e.getMessage());
}
}
nclobs.clear();
}
}
/**
* The given save-update event named a detached entity.
*
* <p>Here, we will perform the update processing.
*
* @param event The update event to be handled.
*/
protected void entityIsDetached(SaveOrUpdateEvent event) {
LOG.trace("Updating detached instance");
if (event.getSession().getPersistenceContext().isEntryFor(event.getEntity())) {
// TODO: assertion only, could be optimized away
throw new AssertionFailure("entity was persistent");
}
Object entity = event.getEntity();
EntityPersister persister =
event.getSession().getEntityPersister(event.getEntityName(), entity);
event.setRequestedId(
getUpdateId(entity, persister, event.getRequestedId(), event.getSession()));
performUpdate(event, entity, persister);
}
/**
* 1. detect any dirty entities 2. schedule any entity updates 3. search out any reachable
* collections
*/
private int flushEntities(final FlushEvent event, final PersistenceContext persistenceContext)
throws HibernateException {
LOG.trace("Flushing entities and processing referenced collections");
final EventSource source = event.getSession();
final Iterable<FlushEntityEventListener> flushListeners =
source
.getFactory()
.getServiceRegistry()
.getService(EventListenerRegistry.class)
.getEventListenerGroup(EventType.FLUSH_ENTITY)
.listeners();
// Among other things, updateReachables() will recursively load all
// collections that are moving roles. This might cause entities to
// be loaded.
// So this needs to be safe from concurrent modification problems.
final Map.Entry<Object, EntityEntry>[] entityEntries =
persistenceContext.reentrantSafeEntityEntries();
final int count = entityEntries.length;
for (Map.Entry<Object, EntityEntry> me : entityEntries) {
// Update the status of the object and if necessary, schedule an update
EntityEntry entry = me.getValue();
Status status = entry.getStatus();
if (status != Status.LOADING && status != Status.GONE) {
final FlushEntityEvent entityEvent = new FlushEntityEvent(source, me.getKey(), entry);
for (FlushEntityEventListener listener : flushListeners) {
listener.onFlushEntity(entityEvent);
}
}
}
source.getActionQueue().sortActions();
return count;
}
private <R extends Service> R initializeService(ServiceBinding<R> serviceBinding) {
if (LOG.isTraceEnabled()) {
LOG.trace("Initializing service [role=" + serviceBinding.getServiceRole().getName() + "]");
}
// PHASE 1 : create service
R service = createService(serviceBinding);
if (service == null) {
return null;
}
// PHASE 2 : configure service (***potentially recursive***)
configureService(service);
// PHASE 3 : Start service
startService(serviceBinding);
return service;
}
/**
* Execute all SQL (and second-level cache updates) in a special order so that foreign-key
* constraints cannot be violated:
*
* <ol>
* <li>Inserts, in the order they were performed
* <li>Updates
* <li>Deletion of collection elements
* <li>Insertion of collection elements
* <li>Deletes, in the order they were performed
* </ol>
*
* @param session The session being flushed
*/
protected void performExecutions(EventSource session) {
LOG.trace("Executing flush");
// IMPL NOTE : here we alter the flushing flag of the persistence context to allow
// during-flush callbacks more leniency in regards to initializing proxies and
// lazy collections during their processing.
// For more information, see HHH-2763
try {
session.getJdbcCoordinator().flushBeginning();
session.getPersistenceContext().setFlushing(true);
// we need to lock the collection caches beforeQuery executing entity inserts/updates in order
// to
// account for bi-directional associations
session.getActionQueue().prepareActions();
session.getActionQueue().executeActions();
} finally {
session.getPersistenceContext().setFlushing(false);
session.getJdbcCoordinator().flushEnding();
}
}
/**
* The given save-update event named a transient entity.
*
* <p>Here, we will perform the save processing.
*
* @param event The save event to be handled.
* @return The entity's identifier after saving.
*/
protected Serializable entityIsTransient(SaveOrUpdateEvent event) {
LOG.trace("Saving transient instance");
final EventSource source = event.getSession();
EntityEntry entityEntry = event.getEntry();
if (entityEntry != null) {
if (entityEntry.getStatus() == Status.DELETED) {
source.forceFlush(entityEntry);
} else {
throw new AssertionFailure("entity was persistent");
}
}
Serializable id = saveWithGeneratedOrRequestedId(event);
source.getPersistenceContext().reassociateProxy(event.getObject(), id);
return id;
}
/**
* 1. detect any dirty entities 2. schedule any entity updates 3. search out any reachable
* collections
*/
private void flushEntities(FlushEvent event) throws HibernateException {
LOG.trace("Flushing entities and processing referenced collections");
// Among other things, updateReachables() will recursively load all
// collections that are moving roles. This might cause entities to
// be loaded.
// So this needs to be safe from concurrent modification problems.
// It is safe because of how IdentityMap implements entrySet()
final EventSource source = event.getSession();
final Map.Entry[] list =
IdentityMap.concurrentEntries(source.getPersistenceContext().getEntityEntries());
final int size = list.length;
for (int i = 0; i < size; i++) {
// Update the status of the object and if necessary, schedule an update
Map.Entry me = list[i];
EntityEntry entry = (EntityEntry) me.getValue();
Status status = entry.getStatus();
if (status != Status.LOADING && status != Status.GONE) {
final FlushEntityEvent entityEvent = new FlushEntityEvent(source, me.getKey(), entry);
final EventListenerGroup<FlushEntityEventListener> listenerGroup =
source
.getFactory()
.getServiceRegistry()
.getService(EventListenerRegistry.class)
.getEventListenerGroup(EventType.FLUSH_ENTITY);
for (FlushEntityEventListener listener : listenerGroup.listeners()) {
listener.onFlushEntity(entityEvent);
}
}
}
source.getActionQueue().sortActions();
}
protected void performUpdate(SaveOrUpdateEvent event, Object entity, EntityPersister persister)
throws HibernateException {
if (!persister.isMutable()) LOG.trace("Immutable instance passed to performUpdate()");
if (LOG.isTraceEnabled())
LOG.trace(
"Updating "
+ MessageHelper.infoString(
persister, event.getRequestedId(), event.getSession().getFactory()));
final EventSource source = event.getSession();
final EntityKey key = source.generateEntityKey(event.getRequestedId(), persister);
source.getPersistenceContext().checkUniqueness(key, entity);
if (invokeUpdateLifecycle(entity, persister, source)) {
reassociate(event, event.getObject(), event.getRequestedId(), persister);
return;
}
// this is a transient object with existing persistent state not loaded by the session
new OnUpdateVisitor(source, event.getRequestedId(), entity).process(entity, persister);
// TODO: put this stuff back in to read snapshot from
// the second-level cache (needs some extra work)
/*Object[] cachedState = null;
if ( persister.hasCache() ) {
CacheEntry entry = (CacheEntry) persister.getCache()
.get( event.getRequestedId(), source.getTimestamp() );
cachedState = entry==null ?
null :
entry.getState(); //TODO: half-assemble this stuff
}*/
source
.getPersistenceContext()
.addEntity(
entity,
(persister.isMutable() ? Status.MANAGED : Status.READ_ONLY),
null, // cachedState,
key,
persister.getVersion(entity, source.getEntityMode()),
LockMode.NONE,
true,
persister,
false,
true // assume true, since we don't really know, and it doesn't matter
);
persister.afterReassociate(entity, source);
if (LOG.isTraceEnabled())
LOG.trace(
"Updating "
+ MessageHelper.infoString(persister, event.getRequestedId(), source.getFactory()));
cascadeOnUpdate(event, persister, entity);
}
/**
* process any unreferenced collections and then inspect all known collections, scheduling
* creates/removes/updates
*/
@SuppressWarnings("unchecked")
private int flushCollections(
final EventSource session, final PersistenceContext persistenceContext)
throws HibernateException {
LOG.trace("Processing unreferenced collections");
final Map.Entry<PersistentCollection, CollectionEntry>[] entries =
IdentityMap.concurrentEntries(
(Map<PersistentCollection, CollectionEntry>) persistenceContext.getCollectionEntries());
final int count = entries.length;
for (Map.Entry<PersistentCollection, CollectionEntry> me : entries) {
CollectionEntry ce = me.getValue();
if (!ce.isReached() && !ce.isIgnore()) {
Collections.processUnreachableCollection(me.getKey(), session);
}
}
// Schedule updates to collections:
LOG.trace("Scheduling collection removes/(re)creates/updates");
ActionQueue actionQueue = session.getActionQueue();
for (Map.Entry<PersistentCollection, CollectionEntry> me :
IdentityMap.concurrentEntries(
(Map<PersistentCollection, CollectionEntry>)
persistenceContext.getCollectionEntries())) {
PersistentCollection coll = me.getKey();
CollectionEntry ce = me.getValue();
if (ce.isDorecreate()) {
session.getInterceptor().onCollectionRecreate(coll, ce.getCurrentKey());
actionQueue.addAction(
new CollectionRecreateAction(
coll, ce.getCurrentPersister(), ce.getCurrentKey(), session));
}
if (ce.isDoremove()) {
session.getInterceptor().onCollectionRemove(coll, ce.getLoadedKey());
actionQueue.addAction(
new CollectionRemoveAction(
coll,
ce.getLoadedPersister(),
ce.getLoadedKey(),
ce.isSnapshotEmpty(coll),
session));
}
if (ce.isDoupdate()) {
session.getInterceptor().onCollectionUpdate(coll, ce.getLoadedKey());
actionQueue.addAction(
new CollectionUpdateAction(
coll,
ce.getLoadedPersister(),
ce.getLoadedKey(),
ce.isSnapshotEmpty(coll),
session));
}
// todo : I'm not sure the !wasInitialized part should really be part of this check
if (!coll.wasInitialized() && coll.hasQueuedOperations()) {
actionQueue.addAction(
new QueuedOperationCollectionAction(
coll, ce.getLoadedPersister(), ce.getLoadedKey(), session));
}
}
actionQueue.sortCollectionActions();
return count;
}
/**
* Handle the given delete event. This is the cascaded form.
*
* @param event The delete event.
* @param transientEntities The cache of entities already deleted
* @throws HibernateException
*/
public void onDelete(DeleteEvent event, Set transientEntities) throws HibernateException {
final EventSource source = event.getSession();
final PersistenceContext persistenceContext = source.getPersistenceContext();
Object entity = persistenceContext.unproxyAndReassociate(event.getObject());
EntityEntry entityEntry = persistenceContext.getEntry(entity);
final EntityPersister persister;
final Serializable id;
final Object version;
if (entityEntry == null) {
LOG.trace("Entity was not persistent in delete processing");
persister = source.getEntityPersister(event.getEntityName(), entity);
if (ForeignKeys.isTransient(persister.getEntityName(), entity, null, source)) {
deleteTransientEntity(
source, entity, event.isCascadeDeleteEnabled(), persister, transientEntities);
// EARLY EXIT!!!
return;
}
performDetachedEntityDeletionCheck(event);
id = persister.getIdentifier(entity, source);
if (id == null) {
throw new TransientObjectException(
"the detached instance passed to delete() had a null identifier");
}
final EntityKey key = source.generateEntityKey(id, persister);
persistenceContext.checkUniqueness(key, entity);
new OnUpdateVisitor(source, id, entity).process(entity, persister);
version = persister.getVersion(entity);
entityEntry =
persistenceContext.addEntity(
entity,
(persister.isMutable() ? Status.MANAGED : Status.READ_ONLY),
persister.getPropertyValues(entity),
key,
version,
LockMode.NONE,
true,
persister,
false);
} else {
LOG.trace("Deleting a persistent instance");
if (entityEntry.getStatus() == Status.DELETED || entityEntry.getStatus() == Status.GONE) {
LOG.trace("Object was already deleted");
return;
}
persister = entityEntry.getPersister();
id = entityEntry.getId();
version = entityEntry.getVersion();
}
/*if ( !persister.isMutable() ) {
throw new HibernateException(
"attempted to delete an object of immutable class: " +
MessageHelper.infoString(persister)
);
}*/
if (invokeDeleteLifecycle(source, entity, persister)) {
return;
}
deleteEntity(
source,
entity,
entityEntry,
event.isCascadeDeleteEnabled(),
event.isOrphanRemovalBeforeUpdates(),
persister,
transientEntities);
if (source.getFactory().getSettings().isIdentifierRollbackEnabled()) {
persister.resetIdentifier(entity, id, version, source);
}
}
private boolean scheduleUpdate(final FlushEntityEvent event) {
final EntityEntry entry = event.getEntityEntry();
final EventSource session = event.getSession();
final Object entity = event.getEntity();
final Status status = entry.getStatus();
final EntityMode entityMode = session.getEntityMode();
final EntityPersister persister = entry.getPersister();
final Object[] values = event.getPropertyValues();
if (LOG.isTraceEnabled()) {
if (status == Status.DELETED) {
if (!persister.isMutable())
LOG.trace(
"Updating immutable, deleted entity: "
+ MessageHelper.infoString(persister, entry.getId(), session.getFactory()));
else if (!entry.isModifiableEntity())
LOG.trace(
"Updating non-modifiable, deleted entity: "
+ MessageHelper.infoString(persister, entry.getId(), session.getFactory()));
else
LOG.trace(
"Updating deleted entity: "
+ MessageHelper.infoString(persister, entry.getId(), session.getFactory()));
} else
LOG.trace(
"Updating entity: "
+ MessageHelper.infoString(persister, entry.getId(), session.getFactory()));
}
final boolean intercepted = !entry.isBeingReplicated() && handleInterception(event);
// increment the version number (if necessary)
final Object nextVersion = getNextVersion(event);
// if it was dirtied by a collection only
int[] dirtyProperties = event.getDirtyProperties();
if (event.isDirtyCheckPossible() && dirtyProperties == null) {
if (!intercepted && !event.hasDirtyCollection()) {
throw new AssertionFailure("dirty, but no dirty properties");
}
dirtyProperties = ArrayHelper.EMPTY_INT_ARRAY;
}
// check nullability but do not doAfterTransactionCompletion command execute
// we'll use scheduled updates for that.
new Nullability(session).checkNullability(values, persister, true);
// schedule the update
// note that we intentionally do _not_ pass in currentPersistentState!
session
.getActionQueue()
.addAction(
new EntityUpdateAction(
entry.getId(),
values,
dirtyProperties,
event.hasDirtyCollection(),
(status == Status.DELETED && !entry.isModifiableEntity()
? persister.getPropertyValues(entity, entityMode)
: entry.getLoadedState()),
entry.getVersion(),
nextVersion,
entity,
entry.getRowId(),
persister,
session));
return intercepted;
}
