/**
* 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);
}
}
}
/**
* 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()));
}
/** Initialize the flags of the CollectionEntry, including the dirty check. */
private void prepareCollectionFlushes(PersistenceContext persistenceContext)
throws HibernateException {
// Initialize dirty flags for arrays + collections with composite elements
// and reset reached, doupdate, etc.
LOG.debug("Dirty checking collections");
for (Map.Entry<PersistentCollection, CollectionEntry> entry :
IdentityMap.concurrentEntries(
(Map<PersistentCollection, CollectionEntry>)
persistenceContext.getCollectionEntries())) {
entry.getValue().preFlush(entry.getKey());
}
}
@SuppressWarnings(value = {"unchecked"})
private void logFlushResults(FlushEvent event) {
if (!LOG.isDebugEnabled()) {
return;
}
final EventSource session = event.getSession();
final PersistenceContext persistenceContext = session.getPersistenceContext();
LOG.debugf(
"Flushed: %s insertions, %s updates, %s deletions to %s objects",
session.getActionQueue().numberOfInsertions(),
session.getActionQueue().numberOfUpdates(),
session.getActionQueue().numberOfDeletions(),
persistenceContext.getNumberOfManagedEntities());
LOG.debugf(
"Flushed: %s (re)creations, %s updates, %s removals to %s collections",
session.getActionQueue().numberOfCollectionCreations(),
session.getActionQueue().numberOfCollectionUpdates(),
session.getActionQueue().numberOfCollectionRemovals(),
persistenceContext.getCollectionEntries().size());
new EntityPrinter(session.getFactory())
.toString(persistenceContext.getEntitiesByKey().entrySet());
}
/**
* 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;
}
