Package org.hibernate.engine.internal

Class StatefulPersistenceContext

java.lang.Object

org.hibernate.engine.internal.StatefulPersistenceContext

All Implemented Interfaces:

PersistenceContext

public class StatefulPersistenceContext
extends Object
implements PersistenceContext

A stateful implementation of the PersistenceContext contract, meaning that we maintain this state throughout the life of the persistence context.

Author:

Steve Ebersole, Sanne Grinovero

Field Summary

Fields inherited from interface org.hibernate.engine.spi.PersistenceContext

NO_ROW

Constructor Summary

Constructors

Constructor	Description
StatefulPersistenceContext(SharedSessionContractImplementor session)	Constructs a PersistentContext, bound to the given session.

Method Summary

Modifier and Type	Method	Description
void	addChildParent(Object child, Object parent)	Add a child/parent relation to cache for cascading op
PersistentCollection<?>	addCollectionByKey(CollectionKey collectionKey, PersistentCollection<?> persistentCollection)	Adds a collection in the collections-by-key map.
void	addCollectionHolder(PersistentCollection<?> holder)	Register a PersistentCollection object for an array.
void	addEnhancedProxy(EntityKey key, PersistentAttributeInterceptable entity)	Cross between PersistenceContext.addEntity(EntityKey, Object) and PersistenceContext.addProxy(EntityKey, Object) for use with enhancement-as-proxy
EntityEntry	addEntity(Object entity, Status status, Object[] loadedState, EntityKey entityKey, Object version, LockMode lockMode, boolean existsInDatabase, EntityPersister persister, boolean disableVersionIncrement)	Adds an entity to the internal caches.
void	addEntity(EntityKey key, Object entity)	Add a canonical mapping from entity key to entity instance
void	addEntity(EntityUniqueKey euk, Object entity)	Add an entity to the cache by unique key
EntityHolder	addEntityHolder(EntityKey key, Object entity)
EntityEntry	addEntry(Object entity, Status status, Object[] loadedState, Object rowId, Object id, Object version, LockMode lockMode, boolean existsInDatabase, EntityPersister persister, boolean disableVersionIncrement)	Generates an appropriate EntityEntry instance and adds it to the event source's internal caches.
CollectionEntry	addInitializedCollection(CollectionPersister persister, PersistentCollection<?> collection, Object id)	add a collection we just pulled out of the cache (does not need initializing)
void	addInitializedDetachedCollection(CollectionPersister collectionPersister, PersistentCollection<?> collection)	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)
void	addNewCollection(CollectionPersister persister, PersistentCollection<?> collection)	Add a new collection (ie. a newly created one, just instantiated by the application, with no database state or snapshot)
void	addNonLazyCollection(PersistentCollection<?> collection)	Register a collection for non-lazy loading at the end of the two-phase load
void	addNullProperty(EntityKey ownerKey, String propertyName)	Record the fact that the association belonging to the keyed entity is null.
void	addProxy(EntityKey key, Object proxy)	Add a proxy to the session cache
EntityEntry	addReferenceEntry(Object entity, Status status)
void	addUninitializedCollection(CollectionPersister persister, PersistentCollection<?> collection, Object id)	add a collection we just loaded up (still needs initializing)
void	addUninitializedDetachedCollection(CollectionPersister persister, PersistentCollection<?> collection)	add a detached uninitialized collection
void	afterLoad()	Call this after finishing a two-phase load
void	afterTransactionCompletion()	Called after transactions end
void	beforeLoad()	Call this before beginning a two-phase load
void	beginRemoveOrphanBeforeUpdates()
void	checkUniqueness(EntityKey key, Object object)	Attempts to check whether the given key represents an entity already loaded within the current session.
EntityHolder	claimEntityHolderIfPossible(EntityKey key, Object entity, JdbcValuesSourceProcessingState processingState, EntityInitializer<?> initializer)	Return an existing entity holder for the entity key, possibly creating one if necessary.
void	clear()	Clear the state of the persistence context
void	clearCollectionsByKey()	Remove all state of the collections-by-key map.
boolean	containsCollection(PersistentCollection<?> collection)	Is the given collection associated with this persistence context?
boolean	containsDeletedUnloadedEntityKey(EntityKey ek)
boolean	containsDeletedUnloadedEntityKeys()
boolean	containsEntity(EntityKey key)	Is there an entity with the given key in the persistence context
boolean	containsEntityHolder(EntityKey key)
boolean	containsNullifiableEntityKey(Supplier<EntityKey> sek)	Checks if a certain EntityKey was registered as nullifiable on this PersistenceContext.
boolean	containsProxy(Object entity)	Is the given proxy associated with this persistence context?
int	decrementCascadeLevel()	Called after cascading
static StatefulPersistenceContext	deserialize(ObjectInputStream ois, SessionImplementor session)	Used by the owning session to explicitly control deserialization of the persistence context.
EntityHolder	detachEntity(EntityKey key)	Remove the EntityHolder and set its state to DETACHED
void	endRemoveOrphanBeforeUpdates()
void	forEachCollectionEntry(BiConsumer<PersistentCollection<?>,CollectionEntry> action, boolean concurrent)	Execute some action on each entry of the collectionEntries map, optionally iterating on a defensive copy.
BatchFetchQueue	getBatchFetchQueue()	Get the BatchFetchQueue, instantiating one if necessary.
Object[]	getCachedDatabaseSnapshot(EntityKey key)	Retrieve the cached database snapshot for the requested entity key.
int	getCascadeLevel()	How deep are we cascaded?
PersistentCollection<?>	getCollection(CollectionKey collectionKey)	Get the collection instance associated with the CollectionKey
@Nullable Map<PersistentCollection<?>,CollectionEntry>	getCollectionEntries()	Deprecated. We should not expose this directly: the other accessors that have been created as a replacement have better chances of skipping initializing this map, which is a good performance improvement.
int	getCollectionEntriesSize()	The size of the internal map storing all collection entries.
CollectionEntry	getCollectionEntry(PersistentCollection<?> coll)	Get the collection entry for a persistent collection
PersistentCollection<?>	getCollectionHolder(Object array)	Get the PersistentCollection object for an array
Object	getCollectionOwner(Object key, CollectionPersister collectionPersister)	Get the entity that owns this persistent collection
Map<CollectionKey,PersistentCollection<?>>	getCollectionsByKey()	Get the mapping from collection key to collection instance
Object[]	getDatabaseSnapshot(Object id, EntityPersister persister)	Get the current state of the entity as known to the underlying database, or null if there is no corresponding row
Map<EntityKey,Object>	getEntitiesByKey()	Deprecated. this will be removed: it provides too wide access, making it hard to optimise the internals for specific access needs.
Object	getEntity(EntityKey key)	Get the entity instance associated with the given key
Object	getEntity(EntityUniqueKey euk)	Get an entity cached by unique key
@Nullable org.hibernate.engine.internal.StatefulPersistenceContext.EntityHolderImpl	getEntityHolder(EntityKey key)
Map<EntityKey,EntityHolder>	getEntityHoldersByKey()	Doubly internal
EntityEntry	getEntry(Object entity)	Retrieve the EntityEntry representation of the given entity.
Object	getIndexInOwner(String entity, String property, Object childEntity, Map mergeMap)	Search the persistence context for an index of the child object, given a collection role
LoadContexts	getLoadContexts()	Retrieve this persistence context's managed load context.
Object	getLoadedCollectionOwnerIdOrNull(PersistentCollection<?> collection)	Get the ID for the entity that owned this persistent collection when it was loaded
Object	getLoadedCollectionOwnerOrNull(PersistentCollection<?> collection)	Get the entity that owned this persistent collection when it was loaded
NaturalIdResolutions	getNaturalIdResolutions()	Access to the natural-id helper for this persistence context
Object	getNaturalIdSnapshot(Object id, EntityPersister persister)	Get the values of the natural id fields as known to the underlying database, or null if the entity has no natural id or there is no corresponding row.
int	getNumberOfManagedEntities()
Object	getOwnerId(String entityName, String propertyName, Object childEntity, Map mergeMap)	Search this persistence context for an associated entity instance which is considered the "owner" of the given childEntity, and return that owner's id value.
Object	getProxy(EntityKey key)	Get an existing proxy by key
SharedSessionContractImplementor	getSession()	Get the session to which this persistence context is bound.
Serializable	getSnapshot(PersistentCollection<?> coll)	Get the snapshot of the pre-flush collection state
boolean	hasLoadContext()
int	incrementCascadeLevel()	Called before cascading
void	initializeNonLazyCollections()	Force initialization of all non-lazy collections encountered during the current two-phase load (actually, this is a no-op, unless this is the "outermost" load)
protected void	initializeNonLazyCollections(Consumer<PersistentCollection<?>> initializeAction)
boolean	isDefaultReadOnly()	Will entities and proxies that are loaded into this persistence context be made read-only by default?
boolean	isEntryFor(Object entity)	Is there an EntityEntry registration for this entity instance?
boolean	isFlushing()	Is a flush cycle currently in process?
boolean	isLoadFinished()	Is in a two-phase load?
boolean	isNullifiableEntityKeysEmpty()
boolean	isPropertyNull(EntityKey ownerKey, String propertyName)	Is the association property belonging to the keyed entity null?
boolean	isReadOnly(Object entityOrProxy)	Is the entity or proxy read-only?
boolean	isRemovingOrphanBeforeUpates()
boolean	isStateless()
Iterator<Object>	managedEntitiesIterator()	A read-only iterator on all entities managed by this persistence context
Object	narrowProxy(Object proxy, EntityPersister persister, EntityKey key, Object object)	If the existing proxy is insufficiently "narrow" (derived), instantiate a new proxy and overwrite the registration of the old one.
void	postLoad(JdbcValuesSourceProcessingState processingState, Consumer<EntityHolder> holderConsumer)
Object	proxyFor(Object impl)	Return the existing proxy associated with the given EntityKey, or the argument (the entity associated with the key) if no proxy exists.
Object	proxyFor(EntityHolder holder)	Return the existing proxy associated with the given EntityHolder, or the entity if it contains no proxy.
Object	proxyFor(EntityHolder holder, EntityPersister persister)	Return the existing proxy associated with the given EntityHolder, or the entity if no proxy exists.
Object	proxyFor(EntityPersister persister, EntityKey key, Object impl)	Return the existing proxy associated with the given EntityKey, or the third argument (the entity associated with the key) if no proxy exists.
boolean	reassociateIfUninitializedProxy(Object value)	Takes the given object and, if it represents a proxy, reassociates it with this event source.
void	reassociateProxy(Object value, Object id)	If a deleted entity instance is re-saved, and it has a proxy, we need to reset the identifier of the proxy
Map.Entry<Object,EntityEntry>[]	reentrantSafeEntityEntries()	Provides access to the entity/EntityEntry combos associated with the persistence context in a manner that is safe from reentrant access.
void	registerDeletedUnloadedEntityKey(EntityKey key)
void	registerInsertedKey(EntityPersister persister, Object id)	Register keys inserted during the current transaction
void	registerNullifiableEntityKey(EntityKey key)	Registers an EntityKey as nullifiable on this PersistenceContext.
void	removeChildParent(Object child)	Remove child/parent relation from cache
void	removeCollectionByKey(CollectionKey collectionKey)	Remove a collection-by-key mapping.
CollectionEntry	removeCollectionEntry(PersistentCollection<?> collection)	Remove a PersistentCollection from the PersistenceContext.
PersistentCollection<?>	removeCollectionHolder(Object array)	Remove the mapping of collection to holder during eviction of the owning entity
void	removeDeletedUnloadedEntityKey(EntityKey key)
Object	removeEntity(EntityKey key)	Remove an entity.
@Nullable org.hibernate.engine.internal.StatefulPersistenceContext.EntityHolderImpl	removeEntityHolder(EntityKey key)
EntityEntry	removeEntry(Object entity)	Remove an entity entry from the session cache
Object	removeProxy(EntityKey key)	Remove a proxy from the session cache.
void	replaceDelayedEntityIdentityInsertKeys(EntityKey oldKey, Object generatedId)
void	replaceEntityEntryRowId(Object entity, Object rowId)
void	serialize(ObjectOutputStream oos)	Used by the owning session to explicitly control serialization of the persistence context.
void	setDefaultReadOnly(boolean defaultReadOnly)	Change the default for entities and proxies loaded into this persistence context from modifiable to read-only mode, or from read-only mode to modifiable.
void	setEntryStatus(EntityEntry entry, Status status)	Set the status of an entry
void	setFlushing(boolean flushing)	Called before and after the flush cycle
void	setReadOnly(Object object, boolean readOnly)	Set an unmodified persistent object to read-only mode, or a read-only object to modifiable mode.
String	toString()	Returns a string representation of the object.
Object	unproxy(Object maybeProxy)	Get the entity instance underlying the given proxy, throwing an exception if the proxy is uninitialized.
Object	unproxyAndReassociate(Object maybeProxy)	Possibly unproxy the given reference and reassociate it with the current session.
PersistentCollection<?>	useUnownedCollection(CollectionKey key)	Take ownership of a previously unowned collection, if one.
boolean	wasInsertedDuringTransaction(EntityPersister persister, Object id)	Allows callers to check to see if the identified entity was inserted during the current transaction.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

StatefulPersistenceContext

public StatefulPersistenceContext(SharedSessionContractImplementor session)

Constructs a PersistentContext, bound to the given session.

Parameters:

session - The session "owning" this context.

Method Details

isStateless

public boolean isStateless()

Specified by:

isStateless in interface PersistenceContext

getSession

public SharedSessionContractImplementor getSession()

Description copied from interface: PersistenceContext

Get the session to which this persistence context is bound.

Specified by:

getSession in interface PersistenceContext

Returns:

The session.

getLoadContexts

public LoadContexts getLoadContexts()

Description copied from interface: PersistenceContext

Retrieve this persistence context's managed load context.

Specified by:

getLoadContexts in interface PersistenceContext

Returns:

The load context

hasLoadContext

public boolean hasLoadContext()

Specified by:

hasLoadContext in interface PersistenceContext

useUnownedCollection

public PersistentCollection<?> useUnownedCollection(CollectionKey key)

Description copied from interface: PersistenceContext

Take ownership of a previously unowned collection, if one. This method returns null if no such collection was previously added () or was previously removed.

This should indicate the owner is being loaded and we are ready to "link" them.

Specified by:

useUnownedCollection in interface PersistenceContext

Parameters:

key - The collection key for which to locate a collection collection

Returns:

The unowned collection, or null

getBatchFetchQueue

public BatchFetchQueue getBatchFetchQueue()

Description copied from interface: PersistenceContext

Get the BatchFetchQueue, instantiating one if necessary.

Specified by:

getBatchFetchQueue in interface PersistenceContext

Returns:

The batch fetch queue in effect for this persistence context

clear

public void clear()

Description copied from interface: PersistenceContext

Clear the state of the persistence context

Specified by:

clear in interface PersistenceContext

isDefaultReadOnly

public boolean isDefaultReadOnly()

Description copied from interface: PersistenceContext

Will entities and proxies that are loaded into this persistence context be made read-only by default? To determine the read-only/modifiable setting for a particular entity or proxy:

Specified by:

isDefaultReadOnly in interface PersistenceContext

Returns:

true, loaded entities/proxies will be made read-only by default; false, loaded entities/proxies will be made modifiable by default.

See Also:

• PersistenceContext.isReadOnly(Object)
• Session.isReadOnly(Object)
• Session.isDefaultReadOnly()

setDefaultReadOnly

public void setDefaultReadOnly(boolean defaultReadOnly)

Description copied from interface: PersistenceContext

Change the default for entities and proxies loaded into this persistence context from modifiable to read-only mode, or from read-only mode to modifiable. Read-only entities are not dirty-checked and snapshots of persistent state are not maintained. Read-only entities can be modified, but changes are not persisted. When a proxy is initialized, the loaded entity will have the same read-only/modifiable setting as the uninitialized proxy has, regardless of the persistence context's current setting. To change the read-only/modifiable setting for a particular entity or proxy that is already in this session: + * @see PersistenceContext#setReadOnly(Object,boolean)

Specified by:

setDefaultReadOnly in interface PersistenceContext

Parameters:

defaultReadOnly - true, the default for loaded entities/proxies is read-only; false, the default for loaded entities/proxies is modifiable

See Also:

• To override this session's read-only/modifiable setting for entities and proxies loaded by a Query:
• Query.setReadOnly(boolean)
• Session.setDefaultReadOnly(boolean)

setEntryStatus

public void setEntryStatus(EntityEntry entry,
 Status status)

Description copied from interface: PersistenceContext

Set the status of an entry

Specified by:

setEntryStatus in interface PersistenceContext

Parameters:

entry - The entry for which to set the status

status - The new status

afterTransactionCompletion

public void afterTransactionCompletion()

Description copied from interface: PersistenceContext

Called after transactions end

Specified by:

afterTransactionCompletion in interface PersistenceContext

getDatabaseSnapshot

public Object[] getDatabaseSnapshot(Object id,
 EntityPersister persister)
                             throws HibernateException

Get the current state of the entity as known to the underlying database, or null if there is no corresponding row

Get the current state of the entity as known to the underlying database, or null if there is no corresponding row

Specified by:

getDatabaseSnapshot in interface PersistenceContext

Parameters:

id - The identifier of the entity for which to grab a snapshot

persister - The persister of the entity.

Returns:

The entity's (non-cached) snapshot

Throws:

HibernateException

See Also:

• PersistenceContext.getCachedDatabaseSnapshot(org.hibernate.engine.spi.EntityKey)

getNaturalIdSnapshot

public Object getNaturalIdSnapshot(Object id,
 EntityPersister persister)
                            throws HibernateException

Description copied from interface: PersistenceContext

Get the values of the natural id fields as known to the underlying database, or null if the entity has no natural id or there is no corresponding row.

Specified by:

getNaturalIdSnapshot in interface PersistenceContext

Parameters:

id - The identifier of the entity for which to grab a snapshot

persister - The persister of the entity.

Returns:

The current (non-cached) snapshot of the entity's natural id state.

Throws:

HibernateException

getCachedDatabaseSnapshot

public Object[] getCachedDatabaseSnapshot(EntityKey key)

Description copied from interface: PersistenceContext

Retrieve the cached database snapshot for the requested entity key.

This differs from PersistenceContext.getDatabaseSnapshot(java.lang.Object, org.hibernate.persister.entity.EntityPersister) in two important respects:

1. no snapshot is obtained from the database if not already cached
2. an entry of PersistenceContext.NO_ROW here is interpreted as an exception

Specified by:

getCachedDatabaseSnapshot in interface PersistenceContext

Parameters:

key - The entity key for which to retrieve the cached snapshot

Returns:

The cached snapshot

claimEntityHolderIfPossible

public EntityHolder claimEntityHolderIfPossible(EntityKey key,
 Object entity,
 JdbcValuesSourceProcessingState processingState,
 EntityInitializer<?> initializer)

Description copied from interface: PersistenceContext

Return an existing entity holder for the entity key, possibly creating one if necessary. Will claim the entity holder by registering the given entity initializer, if it isn't claimed yet.

Specified by:

claimEntityHolderIfPossible in interface PersistenceContext

Parameters:

key - The key under which to add an entity

entity - The entity instance to add

processingState - The processing state which initializes the entity if successfully claimed

initializer - The initializer to claim the entity instance

getEntityHolder

public @Nullable org.hibernate.engine.internal.StatefulPersistenceContext.EntityHolderImpl getEntityHolder(EntityKey key)

Specified by:

getEntityHolder in interface PersistenceContext

containsEntityHolder

public boolean containsEntityHolder(EntityKey key)

Specified by:

containsEntityHolder in interface PersistenceContext

postLoad

public void postLoad(JdbcValuesSourceProcessingState processingState,
 Consumer<EntityHolder> holderConsumer)

Specified by:

postLoad in interface PersistenceContext

addEntity

public void addEntity(EntityKey key,
 Object entity)

Description copied from interface: PersistenceContext

Add a canonical mapping from entity key to entity instance

Specified by:

addEntity in interface PersistenceContext

Parameters:

key - The key under which to add an entity

entity - The entity instance to add

addEntityHolder

public EntityHolder addEntityHolder(EntityKey key,
 Object entity)

Specified by:

addEntityHolder in interface PersistenceContext

getEntity

public Object getEntity(EntityKey key)

Description copied from interface: PersistenceContext

Get the entity instance associated with the given key

Specified by:

getEntity in interface PersistenceContext

Parameters:

key - The key under which to look for an entity

Returns:

The matching entity, or null

containsEntity

public boolean containsEntity(EntityKey key)

Description copied from interface: PersistenceContext

Is there an entity with the given key in the persistence context

Specified by:

containsEntity in interface PersistenceContext

Parameters:

key - The key under which to look for an entity

Returns:

true indicates an entity was found; otherwise false

removeEntity

public Object removeEntity(EntityKey key)

Description copied from interface: PersistenceContext

Remove an entity. Also clears up all other state associated with the entity aside from the EntityEntry

Specified by:

removeEntity in interface PersistenceContext

Parameters:

key - The key whose matching entity should be removed

Returns:

The matching entity

removeEntityHolder

public @Nullable org.hibernate.engine.internal.StatefulPersistenceContext.EntityHolderImpl removeEntityHolder(EntityKey key)

Specified by:

removeEntityHolder in interface PersistenceContext

getEntity

public Object getEntity(EntityUniqueKey euk)

Description copied from interface: PersistenceContext

Get an entity cached by unique key

Specified by:

getEntity in interface PersistenceContext

Parameters:

euk - The unique (non-primary) key under which to look for an entity

Returns:

The located entity

addEntity

public void addEntity(EntityUniqueKey euk,
 Object entity)

Description copied from interface: PersistenceContext

Add an entity to the cache by unique key

Specified by:

addEntity in interface PersistenceContext

Parameters:

euk - The unique (non-primary) key under which to add an entity

entity - The entity instance

getEntry

public EntityEntry getEntry(Object entity)

Description copied from interface: PersistenceContext

Retrieve the EntityEntry representation of the given entity.

Specified by:

getEntry in interface PersistenceContext

Parameters:

entity - The entity instance for which to locate the corresponding entry

Returns:

The entry

removeEntry

public EntityEntry removeEntry(Object entity)

Description copied from interface: PersistenceContext

Remove an entity entry from the session cache

Specified by:

removeEntry in interface PersistenceContext

Parameters:

entity - The entity instance for which to remove the corresponding entry

Returns:

The matching entry

isEntryFor

public boolean isEntryFor(Object entity)

Description copied from interface: PersistenceContext

Is there an EntityEntry registration for this entity instance?

Specified by:

isEntryFor in interface PersistenceContext

Parameters:

entity - The entity instance for which to check for an entry

Returns:

true indicates a matching entry was found.

getCollectionEntry

public CollectionEntry getCollectionEntry(PersistentCollection<?> coll)

Description copied from interface: PersistenceContext

Get the collection entry for a persistent collection

Specified by:

getCollectionEntry in interface PersistenceContext

Parameters:

coll - The persistent collection instance for which to locate the collection entry

Returns:

The matching collection entry

addEntity

public EntityEntry addEntity(Object entity,
 Status status,
 Object[] loadedState,
 EntityKey entityKey,
 Object version,
 LockMode lockMode,
 boolean existsInDatabase,
 EntityPersister persister,
 boolean disableVersionIncrement)

Description copied from interface: PersistenceContext

Adds an entity to the internal caches.

Specified by:

addEntity in interface PersistenceContext

addEntry

public EntityEntry addEntry(Object entity,
 Status status,
 Object[] loadedState,
 Object rowId,
 Object id,
 Object version,
 LockMode lockMode,
 boolean existsInDatabase,
 EntityPersister persister,
 boolean disableVersionIncrement)

Description copied from interface: PersistenceContext

Generates an appropriate EntityEntry instance and adds it to the event source's internal caches.

Specified by:

addEntry in interface PersistenceContext

addReferenceEntry

public EntityEntry addReferenceEntry(Object entity,
 Status status)

containsCollection

public boolean containsCollection(PersistentCollection<?> collection)

Description copied from interface: PersistenceContext

Is the given collection associated with this persistence context?

Specified by:

containsCollection in interface PersistenceContext

containsProxy

public boolean containsProxy(Object entity)

Description copied from interface: PersistenceContext

Is the given proxy associated with this persistence context?

Specified by:

containsProxy in interface PersistenceContext

reassociateIfUninitializedProxy

public boolean reassociateIfUninitializedProxy(Object value)
                                        throws MappingException

Description copied from interface: PersistenceContext

Takes the given object and, if it represents a proxy, reassociates it with this event source.

Specified by:

reassociateIfUninitializedProxy in interface PersistenceContext

Parameters:

value - The possible proxy to be reassociated.

Returns:

Whether the passed value represented an actual proxy which got initialized.

Throws:

MappingException

reassociateProxy

public void reassociateProxy(Object value,
 Object id)
                      throws MappingException

Description copied from interface: PersistenceContext

If a deleted entity instance is re-saved, and it has a proxy, we need to reset the identifier of the proxy

Specified by:

reassociateProxy in interface PersistenceContext

Throws:

MappingException

unproxy

public Object unproxy(Object maybeProxy)
               throws HibernateException

Description copied from interface: PersistenceContext

Get the entity instance underlying the given proxy, throwing an exception if the proxy is uninitialized. If the given object is not a proxy, simply return the argument.

Specified by:

unproxy in interface PersistenceContext

Throws:

HibernateException

unproxyAndReassociate

public Object unproxyAndReassociate(Object maybeProxy)
                             throws HibernateException

Description copied from interface: PersistenceContext

Possibly unproxy the given reference and reassociate it with the current session.

Specified by:

unproxyAndReassociate in interface PersistenceContext

Parameters:

maybeProxy - The reference to be unproxied if it currently represents a proxy.

Returns:

The unproxied instance.

Throws:

HibernateException

checkUniqueness

public void checkUniqueness(EntityKey key,
 Object object)
                     throws HibernateException

Description copied from interface: PersistenceContext

Attempts to check whether the given key represents an entity already loaded within the current session.

Specified by:

checkUniqueness in interface PersistenceContext

object - The entity reference against which to perform the uniqueness check.

Throws:

HibernateException

narrowProxy

public Object narrowProxy(Object proxy,
 EntityPersister persister,
 EntityKey key,
 Object object)
                   throws HibernateException

Description copied from interface: PersistenceContext

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.

Specified by:

narrowProxy in interface PersistenceContext

Parameters:

proxy - The proxy instance to be narrowed.

persister - The persister for the proxied entity.

key - The internal cache key for the proxied entity.

object - (optional) the actual proxied entity instance.

Returns:

An appropriately narrowed instance.

Throws:

HibernateException

proxyFor

public Object proxyFor(EntityPersister persister,
 EntityKey key,
 Object impl)
                throws HibernateException

Description copied from interface: PersistenceContext

Return the existing proxy associated with the given EntityKey, or the third argument (the entity associated with the key) if no proxy exists. Init the proxy to the target implementation, if necessary.

Specified by:

proxyFor in interface PersistenceContext

Throws:

HibernateException

proxyFor

public Object proxyFor(Object impl)
                throws HibernateException

Description copied from interface: PersistenceContext

Return the existing proxy associated with the given EntityKey, or the argument (the entity associated with the key) if no proxy exists. (slower than the form above)

Specified by:

proxyFor in interface PersistenceContext

Throws:

HibernateException

proxyFor

public Object proxyFor(EntityHolder holder)
                throws HibernateException

Description copied from interface: PersistenceContext

Return the existing proxy associated with the given EntityHolder, or the entity if it contains no proxy.

Specified by:

proxyFor in interface PersistenceContext

Throws:

HibernateException

proxyFor

public Object proxyFor(EntityHolder holder,
 EntityPersister persister)

Description copied from interface: PersistenceContext

Return the existing proxy associated with the given EntityHolder, or the entity if no proxy exists.

Specified by:

proxyFor in interface PersistenceContext

addEnhancedProxy

public void addEnhancedProxy(EntityKey key,
 PersistentAttributeInterceptable entity)

Description copied from interface: PersistenceContext

Cross between PersistenceContext.addEntity(EntityKey, Object) and PersistenceContext.addProxy(EntityKey, Object) for use with enhancement-as-proxy

Specified by:

addEnhancedProxy in interface PersistenceContext

getCollectionOwner

public Object getCollectionOwner(Object key,
 CollectionPersister collectionPersister)
                          throws MappingException

Description copied from interface: PersistenceContext

Get the entity that owns this persistent collection

Specified by:

getCollectionOwner in interface PersistenceContext

Throws:

MappingException

getLoadedCollectionOwnerOrNull

public Object getLoadedCollectionOwnerOrNull(PersistentCollection<?> collection)

Description copied from interface: PersistenceContext

Get the entity that owned this persistent collection when it was loaded

Specified by:

getLoadedCollectionOwnerOrNull in interface PersistenceContext

Parameters:

collection - The persistent collection

Returns:

the owner if its entity ID is available from the collection's loaded key and the owner entity is in the persistence context; otherwise, returns null

getLoadedCollectionOwnerIdOrNull

public Object getLoadedCollectionOwnerIdOrNull(PersistentCollection<?> collection)

Description copied from interface: PersistenceContext

Get the ID for the entity that owned this persistent collection when it was loaded

Specified by:

getLoadedCollectionOwnerIdOrNull in interface PersistenceContext

Parameters:

collection - The persistent collection

Returns:

the owner ID if available from the collection's loaded key; otherwise, returns null

addUninitializedCollection

public void addUninitializedCollection(CollectionPersister persister,
 PersistentCollection<?> collection,
 Object id)

Description copied from interface: PersistenceContext

add a collection we just loaded up (still needs initializing)

Specified by:

addUninitializedCollection in interface PersistenceContext

addUninitializedDetachedCollection

public void addUninitializedDetachedCollection(CollectionPersister persister,
 PersistentCollection<?> collection)

Description copied from interface: PersistenceContext

add a detached uninitialized collection

Specified by:

addUninitializedDetachedCollection in interface PersistenceContext

addNewCollection

public void addNewCollection(CollectionPersister persister,
 PersistentCollection<?> collection)
                      throws HibernateException

Description copied from interface: PersistenceContext

Add a new collection (ie. a newly created one, just instantiated by the application, with no database state or snapshot)

Specified by:

addNewCollection in interface PersistenceContext

collection - The collection to be associated with the persistence context

Throws:

HibernateException

addInitializedDetachedCollection

public void addInitializedDetachedCollection(CollectionPersister collectionPersister,
 PersistentCollection<?> collection)
                                      throws HibernateException

Description copied from interface: PersistenceContext

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)

Specified by:

addInitializedDetachedCollection in interface PersistenceContext

Throws:

HibernateException

addInitializedCollection

public CollectionEntry addInitializedCollection(CollectionPersister persister,
 PersistentCollection<?> collection,
 Object id)
                                         throws HibernateException

Description copied from interface: PersistenceContext

add a collection we just pulled out of the cache (does not need initializing)

Specified by:

addInitializedCollection in interface PersistenceContext

Throws:

HibernateException

getCollection

public PersistentCollection<?> getCollection(CollectionKey collectionKey)

Description copied from interface: PersistenceContext

Get the collection instance associated with the CollectionKey

Specified by:

getCollection in interface PersistenceContext

addNonLazyCollection

public void addNonLazyCollection(PersistentCollection<?> collection)

Description copied from interface: PersistenceContext

Register a collection for non-lazy loading at the end of the two-phase load

Specified by:

addNonLazyCollection in interface PersistenceContext

initializeNonLazyCollections

public void initializeNonLazyCollections()
                                  throws HibernateException

Description copied from interface: PersistenceContext

Force initialization of all non-lazy collections encountered during the current two-phase load (actually, this is a no-op, unless this is the "outermost" load)

Specified by:

initializeNonLazyCollections in interface PersistenceContext

Throws:

HibernateException

initializeNonLazyCollections

protected void initializeNonLazyCollections(Consumer<PersistentCollection<?>> initializeAction)

getCollectionHolder

public PersistentCollection<?> getCollectionHolder(Object array)

Description copied from interface: PersistenceContext

Get the PersistentCollection object for an array

Specified by:

getCollectionHolder in interface PersistenceContext

addCollectionHolder

public void addCollectionHolder(PersistentCollection<?> holder)

Description copied from interface: PersistenceContext

Register a PersistentCollection 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().

Specified by:

addCollectionHolder in interface PersistenceContext

removeCollectionHolder

public PersistentCollection<?> removeCollectionHolder(Object array)

Description copied from interface: PersistenceContext

Remove the mapping of collection to holder during eviction of the owning entity

Specified by:

removeCollectionHolder in interface PersistenceContext

getSnapshot

public Serializable getSnapshot(PersistentCollection<?> coll)

Description copied from interface: PersistenceContext

Get the snapshot of the pre-flush collection state

Specified by:

getSnapshot in interface PersistenceContext

getProxy

public Object getProxy(EntityKey key)

Description copied from interface: PersistenceContext

Get an existing proxy by key

Specified by:

getProxy in interface PersistenceContext

addProxy

public void addProxy(EntityKey key,
 Object proxy)

Description copied from interface: PersistenceContext

Add a proxy to the session cache

Specified by:

addProxy in interface PersistenceContext

removeProxy

public Object removeProxy(EntityKey key)

Description copied from interface: PersistenceContext

Remove a proxy from the session cache.

Additionally, ensure that any load optimization references such as batch or subselect loading get cleaned up as well.

Specified by:

removeProxy in interface PersistenceContext

Parameters:

key - The key of the entity proxy to be removed

Returns:

The proxy reference.

getEntitiesByKey

@Deprecated
public Map<EntityKey,Object> getEntitiesByKey()

Deprecated.

this will be removed: it provides too wide access, making it hard to optimise the internals for specific access needs. Consider using #iterateEntities instead.

Description copied from interface: PersistenceContext

Doubly internal

Specified by:

getEntitiesByKey in interface PersistenceContext

getEntityHoldersByKey

public Map<EntityKey,EntityHolder> getEntityHoldersByKey()

Description copied from interface: PersistenceContext

Doubly internal

Specified by:

getEntityHoldersByKey in interface PersistenceContext

managedEntitiesIterator

public Iterator<Object> managedEntitiesIterator()

Description copied from interface: PersistenceContext

A read-only iterator on all entities managed by this persistence context

Specified by:

managedEntitiesIterator in interface PersistenceContext

getNumberOfManagedEntities

public int getNumberOfManagedEntities()

Specified by:

getNumberOfManagedEntities in interface PersistenceContext

getCollectionEntries

@Deprecated
public @Nullable Map<PersistentCollection<?>,CollectionEntry> getCollectionEntries()

Deprecated.

We should not expose this directly: the other accessors that have been created as a replacement have better chances of skipping initializing this map, which is a good performance improvement.

Description copied from interface: PersistenceContext

Doubly internal

Specified by:

getCollectionEntries in interface PersistenceContext

Returns:

the map of managed collection entries.

forEachCollectionEntry

public void forEachCollectionEntry(BiConsumer<PersistentCollection<?>,CollectionEntry> action,
 boolean concurrent)

Description copied from interface: PersistenceContext

Execute some action on each entry of the collectionEntries map, optionally iterating on a defensive copy.

Specified by:

forEachCollectionEntry in interface PersistenceContext

Parameters:

action - the lambda to apply on each PersistentCollection,CollectionEntry map entry of the PersistenceContext.

concurrent - set this to false for improved efficiency, but that would make it illegal to make changes to the underlying collectionEntries map.

getCollectionsByKey

public Map<CollectionKey,PersistentCollection<?>> getCollectionsByKey()

Description copied from interface: PersistenceContext

Get the mapping from collection key to collection instance

Specified by:

getCollectionsByKey in interface PersistenceContext

getCascadeLevel

public int getCascadeLevel()

Description copied from interface: PersistenceContext

How deep are we cascaded?

Specified by:

getCascadeLevel in interface PersistenceContext

incrementCascadeLevel

public int incrementCascadeLevel()

Description copied from interface: PersistenceContext

Called before cascading

Specified by:

incrementCascadeLevel in interface PersistenceContext

decrementCascadeLevel

public int decrementCascadeLevel()

Description copied from interface: PersistenceContext

Called after cascading

Specified by:

decrementCascadeLevel in interface PersistenceContext

isFlushing

public boolean isFlushing()

Description copied from interface: PersistenceContext

Is a flush cycle currently in process?

Specified by:

isFlushing in interface PersistenceContext

setFlushing

public void setFlushing(boolean flushing)

Description copied from interface: PersistenceContext

Called before and after the flush cycle

Specified by:

setFlushing in interface PersistenceContext

isRemovingOrphanBeforeUpates

public boolean isRemovingOrphanBeforeUpates()

beginRemoveOrphanBeforeUpdates

public void beginRemoveOrphanBeforeUpdates()

endRemoveOrphanBeforeUpdates

public void endRemoveOrphanBeforeUpdates()

beforeLoad

public void beforeLoad()

Call this before beginning a two-phase load

Specified by:

beforeLoad in interface PersistenceContext

afterLoad

public void afterLoad()

Call this after finishing a two-phase load

Specified by:

afterLoad in interface PersistenceContext

isLoadFinished

public boolean isLoadFinished()

Description copied from interface: PersistenceContext

Is in a two-phase load?

Specified by:

isLoadFinished in interface PersistenceContext

toString

public String toString()

Description copied from interface: PersistenceContext

Returns a string representation of the object.

Specified by:

toString in interface PersistenceContext

Overrides:

toString in class Object

Returns:

a string representation of the object.

reentrantSafeEntityEntries

public Map.Entry<Object,EntityEntry>[] reentrantSafeEntityEntries()

Description copied from interface: PersistenceContext

Provides access to the entity/EntityEntry combos associated with the persistence context in a manner that is safe from reentrant access. Specifically, it is safe from additions/removals while iterating.

Specified by:

reentrantSafeEntityEntries in interface PersistenceContext

getOwnerId

public Object getOwnerId(String entityName,
 String propertyName,
 Object childEntity,
 Map mergeMap)

Description copied from interface: PersistenceContext

Search this persistence context for an associated entity instance which is considered the "owner" of the given childEntity, and return that owner's id value. This is performed in the scenario of a uni-directional, non-inverse one-to-many collection (which means that the collection elements do not maintain a direct reference to the owner).

As such, the processing here is basically to loop over every entity currently associated with this persistence context and for those of the correct entity (sub) type to extract its collection role property value and see if the child is contained within that collection. If so, we have found the owner; if not, we go on.

Also need to account for mergeMap which acts as a local copy cache managed for the duration of a merge operation. It represents a map of the detached entity instances pointing to the corresponding managed instance.

Specified by:

getOwnerId in interface PersistenceContext

Parameters:

entityName - The entity name for the entity type which would own the child

propertyName - The name of the property on the owning entity type which would name this child association.

childEntity - The child entity instance for which to locate the owner instance id.

mergeMap - A map of non-persistent instances from an on-going merge operation (possibly null).

Returns:

The id of the entityName instance which is said to own the child; null if an appropriate owner not located.

getIndexInOwner

public Object getIndexInOwner(String entity,
 String property,
 Object childEntity,
 Map mergeMap)

Description copied from interface: PersistenceContext

Search the persistence context for an index of the child object, given a collection role

Specified by:

getIndexInOwner in interface PersistenceContext

addNullProperty

public void addNullProperty(EntityKey ownerKey,
 String propertyName)

Description copied from interface: PersistenceContext

Record the fact that the association belonging to the keyed entity is null.

Specified by:

addNullProperty in interface PersistenceContext

isPropertyNull

public boolean isPropertyNull(EntityKey ownerKey,
 String propertyName)

Description copied from interface: PersistenceContext

Is the association property belonging to the keyed entity null?

Specified by:

isPropertyNull in interface PersistenceContext

isReadOnly

public boolean isReadOnly(Object entityOrProxy)

Description copied from interface: PersistenceContext

Is the entity or proxy read-only?

To determine the default read-only/modifiable setting used for entities and proxies that are loaded into the session use Session.isDefaultReadOnly()

Specified by:

isReadOnly in interface PersistenceContext

Parameters:

entityOrProxy - an entity or proxy

Returns:

true if the object is read-only; otherwise false to indicate that the object is modifiable.

setReadOnly

public void setReadOnly(Object object,
 boolean readOnly)

Description copied from interface: PersistenceContext

Set an unmodified persistent object to read-only mode, or a read-only object to modifiable mode. Read-only entities are not dirty-checked and snapshots of persistent state are not maintained. Read-only entities can be modified, but changes are not persisted. When a proxy is initialized, the loaded entity will have the same read-only/modifiable setting as the uninitialized proxy has, regardless of the session's current setting. If the entity or proxy already has the specified read-only/modifiable setting, then this method does nothing.

Specified by:

setReadOnly in interface PersistenceContext

Parameters:

object - an entity or proxy

readOnly - if true, the entity or proxy is made read-only; otherwise, the entity or proxy is made modifiable.

See Also:

• Session.setDefaultReadOnly(boolean)
• Session.setReadOnly(java.lang.Object, boolean)
• Query.setReadOnly(boolean)

replaceDelayedEntityIdentityInsertKeys

public void replaceDelayedEntityIdentityInsertKeys(EntityKey oldKey,
 Object generatedId)

Specified by:

replaceDelayedEntityIdentityInsertKeys in interface PersistenceContext

replaceEntityEntryRowId

public void replaceEntityEntryRowId(Object entity,
 Object rowId)

Specified by:

replaceEntityEntryRowId in interface PersistenceContext

serialize

public void serialize(ObjectOutputStream oos)
               throws IOException

Used by the owning session to explicitly control serialization of the persistence context.

Parameters:

oos - The stream to which the persistence context should get written

Throws:

IOException - serialization errors.

deserialize

public static StatefulPersistenceContext deserialize(ObjectInputStream ois,
 SessionImplementor session)
                                              throws IOException,
ClassNotFoundException

Used by the owning session to explicitly control deserialization of the persistence context.

Parameters:

ois - The stream from which the persistence context should be read

session - The owning session

Returns:

The deserialized StatefulPersistenceContext

Throws:

IOException - deserialization errors.

ClassNotFoundException - deserialization errors.

addChildParent

public void addChildParent(Object child,
 Object parent)

Description copied from interface: PersistenceContext

Add a child/parent relation to cache for cascading op

Specified by:

addChildParent in interface PersistenceContext

Parameters:

child - The child of the relationship

parent - The parent of the relationship

removeChildParent

public void removeChildParent(Object child)

Description copied from interface: PersistenceContext

Remove child/parent relation from cache

Specified by:

removeChildParent in interface PersistenceContext

Parameters:

child - The child to be removed.

registerInsertedKey

public void registerInsertedKey(EntityPersister persister,
 Object id)

Description copied from interface: PersistenceContext

Register keys inserted during the current transaction

Specified by:

registerInsertedKey in interface PersistenceContext

Parameters:

persister - The entity persister

id - The id

wasInsertedDuringTransaction

public boolean wasInsertedDuringTransaction(EntityPersister persister,
 Object id)

Description copied from interface: PersistenceContext

Allows callers to check to see if the identified entity was inserted during the current transaction.

Specified by:

wasInsertedDuringTransaction in interface PersistenceContext

Parameters:

persister - The entity persister

id - The id

Returns:

True if inserted during this transaction, false otherwise.

containsNullifiableEntityKey

public boolean containsNullifiableEntityKey(Supplier<EntityKey> sek)

Description copied from interface: PersistenceContext

Checks if a certain EntityKey was registered as nullifiable on this PersistenceContext.

Specified by:

containsNullifiableEntityKey in interface PersistenceContext

Parameters:

sek - a supplier for the EntityKey; this allows to not always needing to create the key; for example if the map is known to be empty there is no need to create one to check.

Returns:

true if the EntityKey had been registered before using PersistenceContext.registerNullifiableEntityKey(EntityKey)

See Also:

• PersistenceContext.registerNullifiableEntityKey(EntityKey)

registerNullifiableEntityKey

public void registerNullifiableEntityKey(EntityKey key)

Description copied from interface: PersistenceContext

Registers an EntityKey as nullifiable on this PersistenceContext.

Specified by:

registerNullifiableEntityKey in interface PersistenceContext

isNullifiableEntityKeysEmpty

public boolean isNullifiableEntityKeysEmpty()

Specified by:

isNullifiableEntityKeysEmpty in interface PersistenceContext

Returns:

true if no EntityKey was registered as nullifiable on this PersistenceContext.

See Also:

• PersistenceContext.registerNullifiableEntityKey(EntityKey)

containsDeletedUnloadedEntityKey

public boolean containsDeletedUnloadedEntityKey(EntityKey ek)

Specified by:

containsDeletedUnloadedEntityKey in interface PersistenceContext

registerDeletedUnloadedEntityKey

public void registerDeletedUnloadedEntityKey(EntityKey key)

Specified by:

registerDeletedUnloadedEntityKey in interface PersistenceContext

removeDeletedUnloadedEntityKey

public void removeDeletedUnloadedEntityKey(EntityKey key)

Specified by:

removeDeletedUnloadedEntityKey in interface PersistenceContext

containsDeletedUnloadedEntityKeys

public boolean containsDeletedUnloadedEntityKeys()

Specified by:

containsDeletedUnloadedEntityKeys in interface PersistenceContext

getCollectionEntriesSize

public int getCollectionEntriesSize()

Description copied from interface: PersistenceContext

The size of the internal map storing all collection entries. (The map is not exposed directly, but the size is often useful)

Specified by:

getCollectionEntriesSize in interface PersistenceContext

Returns:

the size

removeCollectionEntry

public CollectionEntry removeCollectionEntry(PersistentCollection<?> collection)

Description copied from interface: PersistenceContext

Remove a PersistentCollection from the PersistenceContext.

Specified by:

removeCollectionEntry in interface PersistenceContext

Parameters:

collection - the collection to remove

Returns:

the matching CollectionEntry, if any was removed.

clearCollectionsByKey

public void clearCollectionsByKey()

Description copied from interface: PersistenceContext

Remove all state of the collections-by-key map.

Specified by:

clearCollectionsByKey in interface PersistenceContext

addCollectionByKey

public PersistentCollection<?> addCollectionByKey(CollectionKey collectionKey,
 PersistentCollection<?> persistentCollection)

Description copied from interface: PersistenceContext

Adds a collection in the collections-by-key map.

Specified by:

addCollectionByKey in interface PersistenceContext

Returns:

the previous collection, it the key was already mapped.

removeCollectionByKey

public void removeCollectionByKey(CollectionKey collectionKey)

Description copied from interface: PersistenceContext

Remove a collection-by-key mapping.

Specified by:

removeCollectionByKey in interface PersistenceContext

Parameters:

collectionKey - the key to clear

getNaturalIdResolutions

public NaturalIdResolutions getNaturalIdResolutions()

Description copied from interface: PersistenceContext

Access to the natural-id helper for this persistence context

Specified by:

getNaturalIdResolutions in interface PersistenceContext

Returns:

This persistence context's natural-id helper

detachEntity

public EntityHolder detachEntity(EntityKey key)

Description copied from interface: PersistenceContext

Remove the EntityHolder and set its state to DETACHED

Specified by:

detachEntity in interface PersistenceContext