private boolean put(
final Object key,
final Object value,
final Object currentVersion,
final Object previousVersion)
throws TimeoutException {
if (versionComparator != null) {
if (explicitVersionCheckEnabled && value instanceof CacheEntry) {
try {
final CacheEntry currentEntry = (CacheEntry) value;
final CacheEntry previousEntry =
(CacheEntry) getCache().tryLockAndGet(key, 500, TimeUnit.MILLISECONDS);
if (previousEntry == null
|| versionComparator.compare(currentEntry.getVersion(), previousEntry.getVersion())
> 0) {
getCache().putAndUnlock(key, value);
return true;
} else {
getCache().unlock(key);
return false;
}
} catch (HazelcastException e) {
return false;
}
} else if (previousVersion == null
|| versionComparator.compare(currentVersion, previousVersion) > 0) {
return putInToCache(key, value);
}
return false;
} else {
return putInToCache(key, value);
}
}
private Object assembleCacheEntry(
final CacheEntry entry,
final Serializable id,
final EntityPersister persister,
final LoadEvent event)
throws HibernateException {
final Object optionalObject = event.getInstanceToLoad();
final EventSource session = event.getSession();
final SessionFactoryImplementor factory = session.getFactory();
if (log.isTraceEnabled()) {
log.trace(
"assembling entity from second-level cache: "
+ MessageHelper.infoString(persister, id, factory));
}
EntityPersister subclassPersister = factory.getEntityPersister(entry.getSubclass());
Object result =
optionalObject == null ? session.instantiate(subclassPersister, id) : optionalObject;
// make it circular-reference safe
TwoPhaseLoad.addUninitializedCachedEntity(
new EntityKey(id, subclassPersister, session.getEntityMode()),
result,
subclassPersister,
LockMode.NONE,
entry.areLazyPropertiesUnfetched(),
entry.getVersion(),
session);
Type[] types = subclassPersister.getPropertyTypes();
Object[] values =
entry.assemble(
result,
id,
subclassPersister,
session.getInterceptor(),
session); // intializes result by side-effect
TypeFactory.deepCopy(
values, types, subclassPersister.getPropertyUpdateability(), values, session);
Object version = Versioning.getVersion(values, subclassPersister);
if (log.isTraceEnabled()) log.trace("Cached Version: " + version);
final PersistenceContext persistenceContext = session.getPersistenceContext();
persistenceContext.addEntry(
result,
Status.MANAGED,
values,
null,
id,
version,
LockMode.NONE,
true,
subclassPersister,
false,
entry.areLazyPropertiesUnfetched());
subclassPersister.afterInitialize(result, entry.areLazyPropertiesUnfetched(), session);
persistenceContext.initializeNonLazyCollections();
// upgrade the lock if necessary:
// lock(result, lockMode);
// PostLoad is needed for EJB3
// TODO: reuse the PostLoadEvent...
PostLoadEvent postLoadEvent =
new PostLoadEvent(session).setEntity(result).setId(id).setPersister(persister);
PostLoadEventListener[] listeners = session.getListeners().getPostLoadEventListeners();
for (int i = 0; i < listeners.length; i++) {
listeners[i].onPostLoad(postLoadEvent);
}
return result;
}