/** Convience method to retreive an entities next version value */
private Object getNextVersion(FlushEntityEvent event) throws HibernateException {
EntityEntry entry = event.getEntityEntry();
EntityPersister persister = entry.getPersister();
if (persister.isVersioned()) {
Object[] values = event.getPropertyValues();
if (entry.isBeingReplicated()) {
return Versioning.getVersion(values, persister);
} else {
int[] dirtyProperties = event.getDirtyProperties();
final boolean isVersionIncrementRequired =
isVersionIncrementRequired(event, entry, persister, dirtyProperties);
final Object nextVersion =
isVersionIncrementRequired
? Versioning.increment(
entry.getVersion(), persister.getVersionType(), event.getSession())
: entry.getVersion(); // use the current version
Versioning.setVersion(values, nextVersion, persister);
return nextVersion;
}
} else {
return null;
}
}
FromElement addFromElement() throws SemanticException {
FromClause parentFromClause = fromClause.getParentFromClause();
if (parentFromClause != null) {
// Look up class name using the first identifier in the path.
String pathAlias = PathHelper.getAlias(path);
FromElement parentFromElement = parentFromClause.getFromElement(pathAlias);
if (parentFromElement != null) {
return createFromElementInSubselect(path, pathAlias, parentFromElement, classAlias);
}
}
EntityPersister entityPersister =
fromClause.getSessionFactoryHelper().requireClassPersister(path);
FromElement elem =
createAndAddFromElement(
path,
classAlias,
entityPersister,
(EntityType) ((Queryable) entityPersister).getType(),
null);
// Add to the query spaces.
fromClause.getWalker().addQuerySpaces(entityPersister.getQuerySpaces());
return elem;
}
/**
* Flushes a single entity's state to the database, by scheduling an update action, if necessary
*/
public void onFlushEntity(FlushEntityEvent event) throws HibernateException {
final Object entity = event.getEntity();
final EntityEntry entry = event.getEntityEntry();
final EventSource session = event.getSession();
final EntityPersister persister = entry.getPersister();
final Status status = entry.getStatus();
final EntityMode entityMode = session.getEntityMode();
final Type[] types = persister.getPropertyTypes();
final boolean mightBeDirty = entry.requiresDirtyCheck(entity);
final Object[] values = getValues(entity, entry, entityMode, mightBeDirty, session);
event.setPropertyValues(values);
// TODO: avoid this for non-new instances where mightBeDirty==false
boolean substitute = wrapCollections(session, persister, types, values);
if (isUpdateNecessary(event, mightBeDirty)) {
substitute = scheduleUpdate(event) || substitute;
}
if (status != Status.DELETED) {
// now update the object .. has to be outside the main if block above (because of collections)
if (substitute) persister.setPropertyValues(entity, values, entityMode);
// Search for collections by reachability, updating their role.
// We don't want to touch collections reachable from a deleted object
if (persister.hasCollections()) {
new FlushVisitor(session, entity).processEntityPropertyValues(values, types);
}
}
}
private void checkNaturalId(
EntityPersister persister,
EntityEntry entry,
Object[] current,
Object[] loaded,
EntityMode entityMode,
SessionImplementor session) {
if (persister.hasNaturalIdentifier() && entry.getStatus() != Status.READ_ONLY) {
Object[] snapshot = null;
Type[] types = persister.getPropertyTypes();
int[] props = persister.getNaturalIdentifierProperties();
boolean[] updateable = persister.getPropertyUpdateability();
for (int i = 0; i < props.length; i++) {
int prop = props[i];
if (!updateable[prop]) {
Object loadedVal;
if (loaded == null) {
if (snapshot == null) {
snapshot =
session.getPersistenceContext().getNaturalIdSnapshot(entry.getId(), persister);
}
loadedVal = snapshot[i];
} else {
loadedVal = loaded[prop];
}
if (!types[prop].isEqual(current[prop], loadedVal, entityMode)) {
throw new HibernateException(
"immutable natural identifier of an instance of "
+ persister.getEntityName()
+ " was altered");
}
}
}
}
}
public void noCascade(
EventSource session,
Object child,
Object parent,
EntityPersister persister,
int propertyIndex) {
if (child == null) {
return;
}
Type type = persister.getPropertyTypes()[propertyIndex];
if (type.isEntityType()) {
String childEntityName =
((EntityType) type).getAssociatedEntityName(session.getFactory());
if (!isInManagedState(child, session)
&& !(child
instanceof
HibernateProxy) // a proxy cannot be transient and it breaks
// ForeignKeys.isTransient
&& ForeignKeys.isTransient(childEntityName, child, null, session)) {
String parentEntiytName = persister.getEntityName();
String propertyName = persister.getPropertyNames()[propertyIndex];
throw new TransientObjectException(
"object references an unsaved transient instance - "
+ "save the transient instance before flushing: "
+ parentEntiytName
+ "."
+ propertyName
+ " -> "
+ childEntityName);
}
}
}
public Object[] getNaturalIdSnapshot(Serializable id, EntityPersister persister)
throws HibernateException {
if (!persister.hasNaturalIdentifier()) {
return null;
}
// if the natural-id is marked as non-mutable, it is not retrieved during a
// normal database-snapshot operation...
int[] props = persister.getNaturalIdentifierProperties();
boolean[] updateable = persister.getPropertyUpdateability();
boolean allNatualIdPropsAreUpdateable = true;
for (int i = 0; i < props.length; i++) {
if (!updateable[props[i]]) {
allNatualIdPropsAreUpdateable = false;
break;
}
}
if (allNatualIdPropsAreUpdateable) {
// do this when all the properties are updateable since there is
// a certain likelihood that the information will already be
// snapshot-cached.
Object[] entitySnapshot = getDatabaseSnapshot(id, persister);
if (entitySnapshot == NO_ROW) {
return null;
}
Object[] naturalIdSnapshot = new Object[props.length];
for (int i = 0; i < props.length; i++) {
naturalIdSnapshot[i] = entitySnapshot[props[i]];
}
return naturalIdSnapshot;
} else {
return persister.getNaturalIdentifierSnapshot(id, session);
}
}
/**
* If the existing proxy is insufficiently "narrow" (derived), instantiate a new proxy and
* overwrite the registration of the old one. This breaks == and occurs only for "class" proxies
* rather than "interface" proxies. Also init the proxy to point to the given target
* implementation if necessary.
*
* @param proxy The proxy instance to be narrowed.
* @param persister The persister for the proxied entity.
* @param key The internal cache key for the proxied entity.
* @param object (optional) the actual proxied entity instance.
* @return An appropriately narrowed instance.
* @throws HibernateException
*/
public Object narrowProxy(Object proxy, EntityPersister persister, EntityKey key, Object object)
throws HibernateException {
boolean alreadyNarrow =
persister.getConcreteProxyClass(session.getEntityMode()).isAssignableFrom(proxy.getClass());
if (!alreadyNarrow) {
if (PROXY_WARN_LOG.isWarnEnabled()) {
PROXY_WARN_LOG.warn(
"Narrowing proxy to "
+ persister.getConcreteProxyClass(session.getEntityMode())
+ " - this operation breaks ==");
}
if (object != null) {
proxiesByKey.remove(key);
return object; // return the proxied object
} else {
proxy = persister.createProxy(key.getIdentifier(), session);
proxiesByKey.put(key, proxy); // overwrite old proxy
return proxy;
}
} else {
if (object != null) {
LazyInitializer li = ((HibernateProxy) proxy).getHibernateLazyInitializer();
li.setImplementation(object);
}
return proxy;
}
}
/**
* Search the persistence context for an owner for the child object, given a collection role. If
* <tt>mergeMap</tt> is non-null, also check the detached graph being merged for a parent.
*/
public Serializable getOwnerId(String entity, String property, Object childEntity, Map mergeMap) {
EntityPersister persister = session.getFactory().getEntityPersister(entity);
final CollectionPersister collectionPersister =
session.getFactory().getCollectionPersister(entity + '.' + property);
Iterator entities = entityEntries.entrySet().iterator();
while (entities.hasNext()) {
Map.Entry me = (Map.Entry) entities.next();
EntityEntry ee = (EntityEntry) me.getValue();
if (persister.isSubclassEntityName(ee.getEntityName())) {
Object instance = me.getKey();
// check if the managed object is the parent
boolean found =
isFoundInParent(property, childEntity, persister, collectionPersister, instance);
if (!found && mergeMap != null) {
// check if the detached object being merged is the parent
Object unmergedInstance = mergeMap.get(instance);
Object unmergedChild = mergeMap.get(childEntity);
if (unmergedInstance != null && unmergedChild != null) {
found =
isFoundInParent(
property, unmergedChild, persister, collectionPersister, unmergedInstance);
}
}
if (found) {
return ee.getId();
}
}
}
return null;
}
@SuppressWarnings("unchecked")
@Override
/**
* 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 = source.getEntityPersister(event.getEntityName(), entity);
final Object version;
if (persister.isVersioned()) {
version = persister.getVersion(entity, source.getEntityMode());
// Make sure version has not changed on deleted entities
if ((entity instanceof TimelineEntity) && !((TimelineEntity) entity).isNew()) {
if (!persister.getVersionType().isEqual(version, entityEntry.getVersion())) {
throw new StaleObjectStateException(persister.getEntityName(), entityEntry.getId());
}
}
}
super.onDelete(event, transientEntities);
}
/** make sure user didn't mangle the id */
public void checkId(
Object object,
EntityPersister persister,
Serializable id,
EntityMode entityMode,
SessionImplementor session)
throws HibernateException {
if (id != null && id instanceof DelayedPostInsertIdentifier) {
// this is a situation where the entity id is assigned by a post-insert generator
// and was saved outside the transaction forcing it to be delayed
return;
}
if (persister.canExtractIdOutOfEntity()) {
Serializable oid = persister.getIdentifier(object, session);
if (id == null) {
throw new AssertionFailure(
"null id in "
+ persister.getEntityName()
+ " entry (don't flush the Session after an exception occurs)");
}
if (!persister.getIdentifierType().isEqual(id, oid, entityMode, session.getFactory())) {
throw new HibernateException(
"identifier of an instance of "
+ persister.getEntityName()
+ " was altered from "
+ id
+ " to "
+ oid);
}
}
}
/**
* Register the "hydrated" state of an entity instance, after the first step of 2-phase loading.
*
* <p>Add the "hydrated state" (an array) of an uninitialized entity to the session. We don't try
* to resolve any associations yet, because there might be other entities waiting to be read from
* the JDBC result set we are currently processing
*/
public static void postHydrate(
final EntityPersister persister,
final Serializable id,
final Object[] values,
final Object rowId,
final Object object,
final LockMode lockMode,
final boolean lazyPropertiesAreUnfetched,
final SessionImplementor session)
throws HibernateException {
Object version = Versioning.getVersion(values, persister);
session
.getPersistenceContext()
.addEntry(
object,
Status.LOADING,
values,
rowId,
id,
version,
lockMode,
true,
persister,
false,
lazyPropertiesAreUnfetched);
if (log.isTraceEnabled() && version != null) {
String versionStr =
persister.isVersioned()
? persister.getVersionType().toLoggableString(version, session.getFactory())
: "null";
log.trace("Version: " + versionStr);
}
}
/**
* Handle the given lock event.
*
* @param event The lock event to be handled.
* @throws HibernateException
*/
public void onLock(LockEvent event) throws HibernateException {
if (event.getObject() == null) {
throw new NullPointerException("attempted to lock null");
}
if (event.getLockMode() == LockMode.WRITE) {
throw new HibernateException("Invalid lock mode for lock()");
}
SessionImplementor source = event.getSession();
Object entity = source.getPersistenceContext().unproxyAndReassociate(event.getObject());
// TODO: if object was an uninitialized proxy, this is inefficient,
// resulting in two SQL selects
EntityEntry entry = source.getPersistenceContext().getEntry(entity);
if (entry == null) {
final EntityPersister persister = source.getEntityPersister(event.getEntityName(), entity);
final Serializable id = persister.getIdentifier(entity, source.getEntityMode());
if (!ForeignKeys.isNotTransient(event.getEntityName(), entity, Boolean.FALSE, source)) {
throw new TransientObjectException(
"cannot lock an unsaved transient instance: " + persister.getEntityName());
}
entry = reassociate(event, entity, id, persister);
cascadeOnLock(event, persister, entity);
}
upgradeLock(entity, entry, event.getLockMode(), source);
}
public void forceLocked(Object entity, Object nextVersion) {
version = nextVersion;
loadedState[persister.getVersionProperty()] = version;
//noinspection deprecation
setLockMode(LockMode.FORCE); // TODO: use LockMode.PESSIMISTIC_FORCE_INCREMENT
persister.setPropertyValue(entity, getPersister().getVersionProperty(), nextVersion);
}
@Override
public void doAfterTransactionCompletion(boolean success, SessionImplementor session)
throws CacheException {
final EntityPersister persister = getPersister();
if (persister.hasCache()) {
final EntityRegionAccessStrategy cache = persister.getCacheAccessStrategy();
final Object ck =
cache.generateCacheKey(
getId(), persister, session.getFactory(), session.getTenantIdentifier());
if (success && cacheEntry != null /*!persister.isCacheInvalidationRequired()*/) {
final boolean put = cacheAfterUpdate(cache, ck);
if (put && getSession().getFactory().getStatistics().isStatisticsEnabled()) {
getSession()
.getFactory()
.getStatisticsImplementor()
.secondLevelCachePut(cache.getRegion().getName());
}
} else {
cache.unlockItem(session, ck, lock);
}
}
postCommitUpdate(success);
}
/**
* Prepares the save call using a newly generated id.
*
* @param entity The entity to be saved
* @param entityName The entity-name for the entity to be saved
* @param anything Generally cascade-specific information.
* @param source The session which is the source of this save event.
* @param requiresImmediateIdAccess does the event context require access to the identifier
* immediately after execution of this method (if not, post-insert style id generators may be
* postponed if we are outside a transaction).
* @return The id used to save the entity; may be null depending on the type of id generator used
* and the requiresImmediateIdAccess value
*/
protected Serializable saveWithGeneratedId(
Object entity,
String entityName,
Object anything,
EventSource source,
boolean requiresImmediateIdAccess) {
EntityPersister persister = source.getEntityPersister(entityName, entity);
Serializable generatedId = persister.getIdentifierGenerator().generate(source, entity);
if (generatedId == null) {
throw new IdentifierGenerationException("null id generated for:" + entity.getClass());
} else if (generatedId == IdentifierGeneratorHelper.SHORT_CIRCUIT_INDICATOR) {
return source.getIdentifier(entity);
} else if (generatedId == IdentifierGeneratorHelper.POST_INSERT_INDICATOR) {
return performSave(
entity, null, persister, true, anything, source, requiresImmediateIdAccess);
} else {
// TODO: define toString()s for generators
if (LOG.isDebugEnabled()) {
LOG.debugf(
"Generated identifier: %s, using strategy: %s",
persister.getIdentifierType().toLoggableString(generatedId, source.getFactory()),
persister.getIdentifierGenerator().getClass().getName());
}
return performSave(entity, generatedId, persister, false, anything, source, true);
}
}
/** Search the persistence context for an index of the child object, given a collection role */
public Object getIndexInOwner(String entity, String property, Object childEntity, Map mergeMap) {
EntityPersister persister = session.getFactory().getEntityPersister(entity);
CollectionPersister cp = session.getFactory().getCollectionPersister(entity + '.' + property);
Iterator entities = entityEntries.entrySet().iterator();
while (entities.hasNext()) {
Map.Entry me = (Map.Entry) entities.next();
EntityEntry ee = (EntityEntry) me.getValue();
if (persister.isSubclassEntityName(ee.getEntityName())) {
Object instance = me.getKey();
Object index = getIndexInParent(property, childEntity, persister, cp, instance);
if (index == null && mergeMap != null) {
Object unmergedInstance = mergeMap.get(instance);
Object unmergedChild = mergeMap.get(childEntity);
if (unmergedInstance != null && unmergedChild != null) {
index = getIndexInParent(property, unmergedChild, persister, cp, unmergedInstance);
}
}
if (index != null) return index;
}
}
return null;
}
private Object[] getValues(
Object entity,
EntityEntry entry,
EntityMode entityMode,
boolean mightBeDirty,
SessionImplementor session) {
final Object[] loadedState = entry.getLoadedState();
final Status status = entry.getStatus();
final EntityPersister persister = entry.getPersister();
final Object[] values;
if (status == Status.DELETED) {
// grab its state saved at deletion
values = entry.getDeletedState();
} else if (!mightBeDirty && loadedState != null) {
values = loadedState;
} else {
checkId(entity, persister, entry.getId(), entityMode, session);
// grab its current state
values = persister.getPropertyValues(entity, entityMode);
checkNaturalId(persister, entry, values, loadedState, entityMode, session);
}
return values;
}
private CacheKey buildCacheKey(Serializable identifier, EntityPersister p) {
return new CacheKey(
identifier,
p.getIdentifierType(),
p.getRootEntityName(),
EntityMode.POJO,
SessionFactoryImpl.this);
}
public void evictEntityRegion(String entityName) {
EntityPersister p = getEntityPersister(entityName);
if (p.hasCache()) {
if (log.isDebugEnabled()) {
log.debug("evicting second-level cache: " + p.getEntityName());
}
p.getCacheAccessStrategy().evictAll();
}
}
FromElement createElementJoin(QueryableCollection queryableCollection) throws SemanticException {
FromElement elem;
implied =
true; // TODO: always true for now, but not if we later decide to support elements() in the
// from clause
inElementsFunction = true;
Type elementType = queryableCollection.getElementType();
if (!elementType.isEntityType()) {
throw new IllegalArgumentException(
"Cannot create element join for a collection of non-entities!");
}
this.queryableCollection = queryableCollection;
SessionFactoryHelper sfh = fromClause.getSessionFactoryHelper();
FromElement destination = null;
String tableAlias = null;
EntityPersister entityPersister = queryableCollection.getElementPersister();
tableAlias = fromClause.getAliasGenerator().createName(entityPersister.getEntityName());
String associatedEntityName = entityPersister.getEntityName();
EntityPersister targetEntityPersister = sfh.requireClassPersister(associatedEntityName);
// Create the FROM element for the target (the elements of the collection).
destination =
createAndAddFromElement(
associatedEntityName,
classAlias,
targetEntityPersister,
(EntityType) queryableCollection.getElementType(),
tableAlias);
// If the join is implied, then don't include sub-classes on the element.
if (implied) {
destination.setIncludeSubclasses(false);
}
fromClause.addCollectionJoinFromElementByPath(path, destination);
// origin.addDestination(destination);
// Add the query spaces.
fromClause.getWalker().addQuerySpaces(entityPersister.getQuerySpaces());
CollectionType type = queryableCollection.getCollectionType();
String role = type.getRole();
String roleAlias = origin.getTableAlias();
String[] targetColumns = sfh.getCollectionElementColumns(role, roleAlias);
AssociationType elementAssociationType = sfh.getElementAssociationType(type);
// Create the join element under the from element.
int joinType = JoinFragment.INNER_JOIN;
JoinSequence joinSequence =
sfh.createJoinSequence(
implied, elementAssociationType, tableAlias, joinType, targetColumns);
elem = initializeJoin(path, destination, joinSequence, targetColumns, origin, false);
elem.setUseFromFragment(
true); // The associated entity is implied, but it must be included in the FROM.
elem.setCollectionTableAlias(roleAlias); // The collection alias is the role.
return elem;
}
/**
* Reads the entity hosting the association from the datastore and applies any property changes
* from the server side.
*/
private void updateHostingEntityIfRequired() {
if (hostingEntity != null && hostingEntityRequiresReadAfterUpdate()) {
EntityPersister entityPersister = getHostingEntityPersister();
entityPersister.processUpdateGeneratedProperties(
entityPersister.getIdentifier(hostingEntity, session),
hostingEntity,
new Object[entityPersister.getPropertyNames().length],
session);
}
}
private void registerEntityNameResolvers(EntityPersister persister) {
if (persister.getEntityMetamodel() == null
|| persister.getEntityMetamodel().getTuplizerMapping() == null) {
return;
}
Iterator itr = persister.getEntityMetamodel().getTuplizerMapping().iterateTuplizers();
while (itr.hasNext()) {
final EntityTuplizer tuplizer = (EntityTuplizer) itr.next();
registerEntityNameResolvers(tuplizer);
}
}
public void evictEntity(String entityName, Serializable identifier) {
EntityPersister p = getEntityPersister(entityName);
if (p.hasCache()) {
if (log.isDebugEnabled()) {
log.debug(
"evicting second-level cache: "
+ MessageHelper.infoString(p, identifier, SessionFactoryImpl.this));
}
p.getCacheAccessStrategy().evict(buildCacheKey(identifier, p));
}
}
/**
* Closes the session factory, releasing all held resources.
*
* <ol>
* <li>cleans up used cache regions and "stops" the cache provider.
* <li>close the JDBC connection
* <li>remove the JNDI binding
* </ol>
*
* Note: Be aware that the sessionfactory instance still can be a "heavy" object memory wise after
* close() has been called. Thus it is important to not keep referencing the instance to let the
* garbage collector release the memory.
*/
public void close() throws HibernateException {
if (isClosed) {
log.trace("already closed");
return;
}
log.info("closing");
isClosed = true;
Iterator iter = entityPersisters.values().iterator();
while (iter.hasNext()) {
EntityPersister p = (EntityPersister) iter.next();
if (p.hasCache()) {
p.getCacheAccessStrategy().getRegion().destroy();
}
}
iter = collectionPersisters.values().iterator();
while (iter.hasNext()) {
CollectionPersister p = (CollectionPersister) iter.next();
if (p.hasCache()) {
p.getCacheAccessStrategy().getRegion().destroy();
}
}
if (settings.isQueryCacheEnabled()) {
queryCache.destroy();
iter = queryCaches.values().iterator();
while (iter.hasNext()) {
QueryCache cache = (QueryCache) iter.next();
cache.destroy();
}
updateTimestampsCache.destroy();
}
settings.getRegionFactory().stop();
if (settings.isAutoDropSchema()) {
schemaExport.drop(false, true);
}
try {
settings.getConnectionProvider().close();
} finally {
SessionFactoryObjectFactory.removeInstance(uuid, name, properties);
}
observer.sessionFactoryClosed(this);
eventListeners.destroyListeners();
}
@Test
@FailureExpectedWithNewMetamodel
public void testHibernateSequenceSchema() {
EntityPersister persister =
sessionFactory().getEntityPersister(HibernateSequenceEntity.class.getName());
IdentifierGenerator generator = persister.getIdentifierGenerator();
Assert.assertTrue(SequenceStyleGenerator.class.isInstance(generator));
SequenceStyleGenerator seqGenerator = (SequenceStyleGenerator) generator;
Assert.assertEquals(
Table.qualify(null, SCHEMA_NAME, SequenceStyleGenerator.DEF_SEQUENCE_NAME),
seqGenerator.getDatabaseStructure().getName());
}
private void synchronizePersisterState(Object entity, EntityPersister persister, Object[] state) {
String[] propertyNames = persister.getPropertyNames();
for (int i = 0; i < propertyNames.length; i++) {
String p = propertyNames[i];
MetaProperty metaProperty = domainMetaClass.getMetaProperty(p);
if (ClosureEventTriggeringInterceptor.IGNORED.contains(p) || metaProperty == null) {
continue;
}
Object value = metaProperty.getProperty(entity);
state[i] = value;
persister.setPropertyValue(entity, i, value);
}
}
public FromElement createEntityJoin(
String entityClass,
String tableAlias,
JoinSequence joinSequence,
boolean fetchFlag,
boolean inFrom,
EntityType type,
String role,
String joinPath)
throws SemanticException {
FromElement elem = createJoin(entityClass, tableAlias, joinSequence, type, false);
elem.setFetch(fetchFlag);
if (joinPath != null) {
elem.applyTreatAsDeclarations(fromClause.getWalker().getTreatAsDeclarationsByPath(joinPath));
}
EntityPersister entityPersister = elem.getEntityPersister();
int numberOfTables = entityPersister.getQuerySpaces().length;
if (numberOfTables > 1 && implied && !elem.useFromFragment()) {
LOG.debug("createEntityJoin() : Implied multi-table entity join");
elem.setUseFromFragment(true);
}
// If this is an implied join in a FROM clause, then use ANSI-style joining, and set the
// flag on the FromElement that indicates that it was implied in the FROM clause itself.
if (implied && inFrom) {
joinSequence.setUseThetaStyle(false);
elem.setUseFromFragment(true);
elem.setImpliedInFromClause(true);
}
if (elem.getWalker().isSubQuery()) {
// two conditions where we need to transform this to a theta-join syntax:
// 1) 'elem' is the "root from-element" in correlated subqueries
// 2) The DotNode.useThetaStyleImplicitJoins has been set to true
// and 'elem' represents an implicit join
if (elem.getFromClause() != elem.getOrigin().getFromClause()
||
// ( implied && DotNode.useThetaStyleImplicitJoins ) ) {
PathSeparatorNode.useThetaStyleImplicitJoins) {
// the "root from-element" in correlated subqueries do need this piece
elem.setType(FROM_FRAGMENT);
joinSequence.setUseThetaStyle(true);
elem.setUseFromFragment(false);
}
}
elem.setRole(role);
return elem;
}
/**
* Construct a new key for a caching natural identifier resolutions into the second level cache.
* Note that an entity name should always be the root entity name, not a subclass entity name.
*
* @param naturalIdValues The naturalIdValues associated with the cached data
* @param persister The persister for the entity
* @param session The originating session
*/
public NaturalIdCacheKey(
final Object[] naturalIdValues,
final EntityPersister persister,
final SessionImplementor session) {
this.entityName = persister.getRootEntityName();
this.tenantId = session.getTenantIdentifier();
this.naturalIdValues = new Serializable[naturalIdValues.length];
final SessionFactoryImplementor factory = session.getFactory();
final int[] naturalIdPropertyIndexes = persister.getNaturalIdentifierProperties();
final Type[] propertyTypes = persister.getPropertyTypes();
final int prime = 31;
int result = 1;
result = prime * result + ((this.entityName == null) ? 0 : this.entityName.hashCode());
result = prime * result + ((this.tenantId == null) ? 0 : this.tenantId.hashCode());
for (int i = 0; i < naturalIdValues.length; i++) {
final Type type = propertyTypes[naturalIdPropertyIndexes[i]];
final Object value = naturalIdValues[i];
result = prime * result + (value != null ? type.getHashCode(value, factory) : 0);
this.naturalIdValues[i] = type.disassemble(value, session, null);
}
this.hashCode = result;
this.toString =
new ValueHolder<String>(
new ValueHolder.DeferredInitializer<String>() {
@Override
public String initialize() {
// Complex toString is needed as naturalIds for entities are not simply based on a
// single value like primary keys
// the only same way to differentiate the keys is to included the disassembled
// values in the string.
final StringBuilder toStringBuilder =
new StringBuilder(entityName).append("##NaturalId[");
for (int i = 0; i < naturalIdValues.length; i++) {
toStringBuilder.append(naturalIdValues[i]);
if (i + 1 < naturalIdValues.length) {
toStringBuilder.append(", ");
}
}
toStringBuilder.append("]");
return toStringBuilder.toString();
}
});
}
private boolean hasDirtyCollections(
FlushEntityEvent event, EntityPersister persister, Status status) {
if (isCollectionDirtyCheckNecessary(persister, status)) {
DirtyCollectionSearchVisitor visitor =
new DirtyCollectionSearchVisitor(
event.getSession(), persister.getPropertyVersionability());
visitor.processEntityPropertyValues(event.getPropertyValues(), persister.getPropertyTypes());
boolean hasDirtyCollections = visitor.wasDirtyCollectionFound();
event.setHasDirtyCollection(hasDirtyCollections);
return hasDirtyCollections;
} else {
return false;
}
}
/**
* Returns all the persistent id generators which potentially require the creation of an object in
* the schema.
*/
private Iterable<PersistentNoSqlIdentifierGenerator> getPersistentGenerators() {
Map<String, EntityPersister> entityPersisters = factory.getEntityPersisters();
Set<PersistentNoSqlIdentifierGenerator> persistentGenerators =
new HashSet<PersistentNoSqlIdentifierGenerator>(entityPersisters.size());
for (EntityPersister persister : entityPersisters.values()) {
if (persister.getIdentifierGenerator() instanceof PersistentNoSqlIdentifierGenerator) {
persistentGenerators.add(
(PersistentNoSqlIdentifierGenerator) persister.getIdentifierGenerator());
}
}
return persistentGenerators;
}
