PersistenceContext (Hibernate Core Aggregator 3.6.10.Final API)

All Known Implementing Classes:

StatefulPersistenceContext
```
public interface PersistenceContext
```
Holds the state of the persistence context, including the first-level cache, entries, snapshots, proxies, etc.

Author:

Gavin King

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addChildParent(Object parent, Object child)` Put child/parent relation to cache for cascading op
`void`	`addCollectionHolder(PersistentCollection holder)` Register a `PersistentCollection` object for an array.
`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
`EntityEntry`	`addEntity(Object entity, Status status, Object[] loadedState, EntityKey entityKey, Object version, LockMode lockMode, boolean existsInDatabase, EntityPersister persister, boolean disableVersionIncrement, boolean lazyPropertiesAreUnfetched)` Adds an entity to the internal caches.
`EntityEntry`	`addEntry(Object entity, Status status, Object[] loadedState, Object rowId, Serializable id, Object version, LockMode lockMode, boolean existsInDatabase, EntityPersister persister, boolean disableVersionIncrement, boolean lazyPropertiesAreUnfetched)` Generates an appropriate EntityEntry instance and adds it to the event source's internal caches.
`CollectionEntry`	`addInitializedCollection(CollectionPersister persister, PersistentCollection collection, Serializable 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.
`void`	`addNewCollection(CollectionPersister persister, PersistentCollection collection)` Add a new collection (ie.
`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
`void`	`addUninitializedCollection(CollectionPersister persister, PersistentCollection collection, Serializable id)` add a collection we just loaded up (still needs initializing)
`void`	`addUninitializedDetachedCollection(CollectionPersister persister, PersistentCollection collection)` add a detached uninitialized collection
`void`	`addUnownedCollection(CollectionKey key, PersistentCollection collection)` Add a collection which has no owner loaded
`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`	`checkUniqueness(EntityKey key, Object object)` Attempts to check whether the given key represents an entity already loaded within the current session.
`void`	`clear()` Clear the state of the persistence context
`boolean`	`containsCollection(PersistentCollection collection)` Is the given collection associated with this persistence context?
`boolean`	`containsEntity(EntityKey key)` Is there an entity with the given key in the persistence context
`boolean`	`containsProxy(Object proxy)` Is the given proxy associated with this persistence context?
`int`	`decrementCascadeLevel()` Called after cascading
`BatchFetchQueue`	`getBatchFetchQueue()` Get the `BatchFetchQueue`, instantiating one if necessary.
`Object[]`	`getCachedDatabaseSnapshot(EntityKey key)`
`int`	`getCascadeLevel()` How deep are we cascaded?
`PersistentCollection`	`getCollection(CollectionKey collectionKey)` Get the collection instance associated with the `CollectionKey`
`Map`	`getCollectionEntries()` Get the mapping from collection instance to collection entry
`CollectionEntry`	`getCollectionEntry(PersistentCollection coll)` Get the collection entry for a persistent collection
`CollectionEntry`	`getCollectionEntryOrNull(Object collection)` Get the collection entry for a collection passed to filter, which might be a collection wrapper, an array, or an unwrapped collection.
`PersistentCollection`	`getCollectionHolder(Object array)` Get the `PersistentCollection` object for an array
`Object`	`getCollectionOwner(Serializable key, CollectionPersister collectionPersister)` Get the entity that owns this persistent collection
`Map`	`getCollectionsByKey()` Get the mapping from collection key to collection instance
`Object[]`	`getDatabaseSnapshot(Serializable 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`	`getEntitiesByKey()` Get the mapping from key value to entity instance
`Object`	`getEntity(EntityKey key)` Get the entity instance associated with the given `EntityKey`
`Object`	`getEntity(EntityUniqueKey euk)` Get an entity cached by unique key
`Map`	`getEntityEntries()` Get the mapping from entity instance to entity entry
`EntityEntry`	`getEntry(Object entity)` Retrieve the EntityEntry representation of the given entity.
`Object`	`getIndexInOwner(String entity, String property, Object childObject, 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.
`Serializable`	`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
`Object[]`	`getNaturalIdSnapshot(Serializable 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.
`HashSet`	`getNullifiableEntityKeys()` Retrieve the set of EntityKeys representing nullifiable references
`Serializable`	`getOwnerId(String entity, String property, Object childObject, Map mergeMap)` Search the persistence context for an owner for the child object, given a collection role
`Object`	`getProxy(EntityKey key)` Get an existing proxy by key
`SessionImplementor`	`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`	`hasNonReadOnlyEntities()`
`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)
`boolean`	`isDefaultReadOnly()` 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:
`boolean`	`isEntryFor(Object entity)` Is there an EntityEntry for this instance?
`boolean`	`isFlushing()` Is a flush cycle currently in process?
`boolean`	`isLoadFinished()` Is in a two-phase load?
`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? To get the default read-only/modifiable setting used for entities and proxies that are loaded into the session:
`boolean`	`isStateless()`
`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.
`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.
`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.
`boolean`	`reassociateIfUninitializedProxy(Object value)` Takes the given object and, if it represents a proxy, reassociates it with this event source.
`void`	`reassociateProxy(Object value, Serializable id)` If a deleted entity instance is re-saved, and it has a proxy, we need to reset the identifier of the proxy
`void`	`registerInsertedKey(EntityPersister persister, Serializable id)` Register keys inserted during the current transaction
`void`	`removeChildParent(Object child)` Remove child/parent relation from cache
`PersistentCollection`	`removeCollectionHolder(Object array)` Remove the mapping of collection to holder during eviction of the owning entity
`Object`	`removeEntity(EntityKey key)` Remove an entity from the session cache, also clear up other state associated with the entity, all except for the `EntityEntry`
`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, Serializable generatedId)`
`void`	`setDefaultReadOnly(boolean readOnly)` Change the default for entities and proxies loaded into this persistence context from modifiable to read-only mode, or from modifiable to read-only mode.
`void`	`setEntryStatus(EntityEntry entry, Status status)` Set the status of an entry
`void`	`setFlushing(boolean flushing)` Called before and after the flushcycle
`void`	`setReadOnly(Object entityOrProxy, 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)` Get and remove a collection whose owner is not yet loaded, when its owner is being loaded
`boolean`	`wasInsertedDuringTransaction(EntityPersister persister, Serializable id)` Allows callers to check to see if the identified entity was inserted during the current transaction.

- Method Detail
  - isStateless
```
boolean isStateless()
```
  - getSession
```
SessionImplementor getSession()
```
    Get the session to which this persistence context is bound.
    
    Returns:
    The session.
  - getLoadContexts
```
LoadContexts getLoadContexts()
```
    Retrieve this persistence context's managed load context.
    
    Returns:
    The load context
  - addUnownedCollection
```
void addUnownedCollection(CollectionKey key,
                        PersistentCollection collection)
```
    Add a collection which has no owner loaded
  - useUnownedCollection
```
PersistentCollection useUnownedCollection(CollectionKey key)
```
    Get and remove a collection whose owner is not yet loaded, when its owner is being loaded
  - getBatchFetchQueue
```
BatchFetchQueue getBatchFetchQueue()
```
    Get the BatchFetchQueue, instantiating one if necessary.
  - clear
```
void clear()
```
    Clear the state of the persistence context
  - hasNonReadOnlyEntities
```
boolean hasNonReadOnlyEntities()
```
    Returns:
    false if we know for certain that all the entities are read-only
  - setEntryStatus
```
void setEntryStatus(EntityEntry entry,
                  Status status)
```
    Set the status of an entry
  - afterTransactionCompletion
```
void afterTransactionCompletion()
```
    Called after transactions end
  - getDatabaseSnapshot
```
Object[] getDatabaseSnapshot(Serializable 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
    
    Throws:
    
    HibernateException
  - getCachedDatabaseSnapshot
```
Object[] getCachedDatabaseSnapshot(EntityKey key)
```
  - getNaturalIdSnapshot
```
Object[] getNaturalIdSnapshot(Serializable id,
                            EntityPersister persister)
                              throws HibernateException
```
    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.
    
    Throws:
    
    HibernateException
  - addEntity
```
void addEntity(EntityKey key,
             Object entity)
```
    Add a canonical mapping from entity key to entity instance
  - getEntity
```
Object getEntity(EntityKey key)
```
    Get the entity instance associated with the given EntityKey
  - containsEntity
```
boolean containsEntity(EntityKey key)
```
    Is there an entity with the given key in the persistence context
  - removeEntity
```
Object removeEntity(EntityKey key)
```
    Remove an entity from the session cache, also clear up other state associated with the entity, all except for the EntityEntry
  - getEntity
```
Object getEntity(EntityUniqueKey euk)
```
    Get an entity cached by unique key
  - addEntity
```
void addEntity(EntityUniqueKey euk,
             Object entity)
```
    Add an entity to the cache by unique key
  - getEntry
```
EntityEntry getEntry(Object entity)
```
    Retrieve the EntityEntry representation of the given entity.
    
    Parameters:
    entity - The entity for which to locate the EntityEntry.
    
    Returns:
    The EntityEntry for the given entity.
  - removeEntry
```
EntityEntry removeEntry(Object entity)
```
    Remove an entity entry from the session cache
  - isEntryFor
```
boolean isEntryFor(Object entity)
```
    Is there an EntityEntry for this instance?
  - getCollectionEntry
```
CollectionEntry getCollectionEntry(PersistentCollection coll)
```
    Get the collection entry for a persistent collection
  - addEntity
```
EntityEntry addEntity(Object entity,
                    Status status,
                    Object[] loadedState,
                    EntityKey entityKey,
                    Object version,
                    LockMode lockMode,
                    boolean existsInDatabase,
                    EntityPersister persister,
                    boolean disableVersionIncrement,
                    boolean lazyPropertiesAreUnfetched)
```
    Adds an entity to the internal caches.
  - addEntry
```
EntityEntry addEntry(Object entity,
                   Status status,
                   Object[] loadedState,
                   Object rowId,
                   Serializable id,
                   Object version,
                   LockMode lockMode,
                   boolean existsInDatabase,
                   EntityPersister persister,
                   boolean disableVersionIncrement,
                   boolean lazyPropertiesAreUnfetched)
```
    Generates an appropriate EntityEntry instance and adds it to the event source's internal caches.
  - containsCollection
```
boolean containsCollection(PersistentCollection collection)
```
    Is the given collection associated with this persistence context?
  - containsProxy
```
boolean containsProxy(Object proxy)
```
    Is the given proxy associated with this persistence context?
  - reassociateIfUninitializedProxy
```
boolean reassociateIfUninitializedProxy(Object value)
                                        throws MappingException
```
    Takes the given object and, if it represents a proxy, reassociates it with this event source.
    
    Parameters:
    value - The possible proxy to be reassociated.
    
    Returns:
    Whether the passed value represented an actual proxy which got initialized.
    
    Throws:
    
    MappingException
  - reassociateProxy
```
void reassociateProxy(Object value,
                    Serializable id)
                      throws MappingException
```
    If a deleted entity instance is re-saved, and it has a proxy, we need to reset the identifier of the proxy
    
    Throws:
    
    MappingException
  - unproxy
```
Object unproxy(Object maybeProxy)
               throws HibernateException
```
    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.
    
    Throws:
    
    HibernateException
  - unproxyAndReassociate
```
Object unproxyAndReassociate(Object maybeProxy)
                             throws HibernateException
```
    Possibly unproxy the given reference and reassociate it with the current session.
    
    Parameters:
    maybeProxy - The reference to be unproxied if it currently represents a proxy.
    
    Returns:
    The unproxied instance.
    
    Throws:
    
    HibernateException
  - checkUniqueness
```
void checkUniqueness(EntityKey key,
                   Object object)
                     throws HibernateException
```
    Attempts to check whether the given key represents an entity already loaded within the current session.
    
    Parameters:
    object - The entity reference against which to perform the uniqueness check.
    
    Throws:
    
    HibernateException
  - narrowProxy
```
Object narrowProxy(Object proxy,
                 EntityPersister persister,
                 EntityKey key,
                 Object object)
                   throws HibernateException
```
    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.
    
    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
```
Object proxyFor(EntityPersister persister,
              EntityKey key,
              Object impl)
                throws HibernateException
```
    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.
    
    Throws:
    
    HibernateException
  - proxyFor
```
Object proxyFor(Object impl)
                throws HibernateException
```
    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)
    
    Throws:
    
    HibernateException
  - getCollectionOwner
```
Object getCollectionOwner(Serializable key,
                        CollectionPersister collectionPersister)
                          throws MappingException
```
    Get the entity that owns this persistent collection
    
    Throws:
    
    MappingException
  - getLoadedCollectionOwnerOrNull
```
Object getLoadedCollectionOwnerOrNull(PersistentCollection collection)
```
    Get the entity that owned this persistent collection when it was loaded
    
    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
```
Serializable getLoadedCollectionOwnerIdOrNull(PersistentCollection collection)
```
    Get the ID for the entity that owned this persistent collection when it was loaded
    
    Parameters:
    collection - The persistent collection
    
    Returns:
    the owner ID if available from the collection's loaded key; otherwise, returns null
  - addUninitializedCollection
```
void addUninitializedCollection(CollectionPersister persister,
                              PersistentCollection collection,
                              Serializable id)
```
    add a collection we just loaded up (still needs initializing)
  - addUninitializedDetachedCollection
```
void addUninitializedDetachedCollection(CollectionPersister persister,
                                      PersistentCollection collection)
```
    add a detached uninitialized collection
  - addNewCollection
```
void addNewCollection(CollectionPersister persister,
                    PersistentCollection collection)
                      throws HibernateException
```
    Add a new collection (ie. a newly created one, just instantiated by the application, with no database state or snapshot)
    
    Parameters:
    collection - The collection to be associated with the persistence context
    
    Throws:
    
    HibernateException
  - addInitializedDetachedCollection
```
void addInitializedDetachedCollection(CollectionPersister collectionPersister,
                                    PersistentCollection collection)
                                      throws HibernateException
```
    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)
    
    Throws:
    
    HibernateException
  - addInitializedCollection
```
CollectionEntry addInitializedCollection(CollectionPersister persister,
                                       PersistentCollection collection,
                                       Serializable id)
                                         throws HibernateException
```
    add a collection we just pulled out of the cache (does not need initializing)
    
    Throws:
    
    HibernateException
  - getCollection
```
PersistentCollection getCollection(CollectionKey collectionKey)
```
    Get the collection instance associated with the CollectionKey
  - addNonLazyCollection
```
void addNonLazyCollection(PersistentCollection collection)
```
    Register a collection for non-lazy loading at the end of the two-phase load
  - initializeNonLazyCollections
```
void initializeNonLazyCollections()
                                  throws HibernateException
```
    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)
    
    Throws:
    
    HibernateException
  - getCollectionHolder
```
PersistentCollection getCollectionHolder(Object array)
```
    Get the PersistentCollection object for an array
  - addCollectionHolder
```
void addCollectionHolder(PersistentCollection holder)
```
    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().
  - removeCollectionHolder
```
PersistentCollection removeCollectionHolder(Object array)
```
    Remove the mapping of collection to holder during eviction of the owning entity
  - getSnapshot
```
Serializable getSnapshot(PersistentCollection coll)
```
    Get the snapshot of the pre-flush collection state
  - getCollectionEntryOrNull
```
CollectionEntry getCollectionEntryOrNull(Object collection)
```
    Get the collection entry for a collection passed to filter, which might be a collection wrapper, an array, or an unwrapped collection. Return null if there is no entry.
  - getProxy
```
Object getProxy(EntityKey key)
```
    Get an existing proxy by key
  - addProxy
```
void addProxy(EntityKey key,
            Object proxy)
```
    Add a proxy to the session cache
  - removeProxy
```
Object removeProxy(EntityKey key)
```
    Remove a proxy from the session cache
  - getNullifiableEntityKeys
```
HashSet getNullifiableEntityKeys()
```
    Retrieve the set of EntityKeys representing nullifiable references
  - getEntitiesByKey
```
Map getEntitiesByKey()
```
    Get the mapping from key value to entity instance
  - getEntityEntries
```
Map getEntityEntries()
```
    Get the mapping from entity instance to entity entry
  - getCollectionEntries
```
Map getCollectionEntries()
```
    Get the mapping from collection instance to collection entry
  - getCollectionsByKey
```
Map getCollectionsByKey()
```
    Get the mapping from collection key to collection instance
  - getCascadeLevel
```
int getCascadeLevel()
```
    How deep are we cascaded?
  - incrementCascadeLevel
```
int incrementCascadeLevel()
```
    Called before cascading
  - decrementCascadeLevel
```
int decrementCascadeLevel()
```
    Called after cascading
  - isFlushing
```
boolean isFlushing()
```
    Is a flush cycle currently in process?
  - setFlushing
```
void setFlushing(boolean flushing)
```
    Called before and after the flushcycle
  - beforeLoad
```
void beforeLoad()
```
    Call this before beginning a two-phase load
  - afterLoad
```
void afterLoad()
```
    Call this after finishing a two-phase load
  - isLoadFinished
```
boolean isLoadFinished()
```
    Is in a two-phase load?
  - toString
```
String toString()
```
    Returns a string representation of the object.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    a string representation of the object.
  - getOwnerId
```
Serializable getOwnerId(String entity,
                      String property,
                      Object childObject,
                      Map mergeMap)
```
    Search the persistence context for an owner for the child object, given a collection role
  - getIndexInOwner
```
Object getIndexInOwner(String entity,
                     String property,
                     Object childObject,
                     Map mergeMap)
```
    Search the persistence context for an index of the child object, given a collection role
  - addNullProperty
```
void addNullProperty(EntityKey ownerKey,
                   String propertyName)
```
    Record the fact that the association belonging to the keyed entity is null.
  - isPropertyNull
```
boolean isPropertyNull(EntityKey ownerKey,
                     String propertyName)
```
    Is the association property belonging to the keyed entity null?
  - isDefaultReadOnly
```
boolean isDefaultReadOnly()
```
    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:
    
    Returns:
    true, loaded entities/proxies will be made read-only by default; false, loaded entities/proxies will be made modifiable by default.
    See Also:
    isReadOnly(Object), Session.isReadOnly(Object), Session.isDefaultReadOnly()
  - setDefaultReadOnly
```
void setDefaultReadOnly(boolean readOnly)
```
    Change the default for entities and proxies loaded into this persistence context from modifiable to read-only mode, or from modifiable to read-only 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 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)
    
    Parameters:
    readOnly - 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)
  - isReadOnly
```
boolean isReadOnly(Object entityOrProxy)
```
    Is the entity or proxy read-only? To get the default read-only/modifiable setting used for entities and proxies that are loaded into the session:
    
    Parameters:
    entityOrProxy -
    
    Returns:
    true, the object is read-only; false, the object is modifiable.
    See Also:
    Session.isDefaultReadOnly()
  - setReadOnly
```
void setReadOnly(Object entityOrProxy,
               boolean readOnly)
```
    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. To set the default read-only/modifiable setting used for entities and proxies that are loaded into this persistence context:
    
    Parameters:
    entityOrProxy, - an entity or HibernateProxy
    readOnly - if true, the entity or proxy is made read-only; if false, the entity or proxy is made modifiable.
    See Also:
    setDefaultReadOnly(boolean), To override this persistence context's read-only/modifiable setting for entities and proxies loaded by a Query:, Query.setReadOnly(boolean), Session.setReadOnly(Object, boolean)
  - replaceDelayedEntityIdentityInsertKeys
```
void replaceDelayedEntityIdentityInsertKeys(EntityKey oldKey,
                                          Serializable generatedId)
```
  - addChildParent
```
void addChildParent(Object parent,
                  Object child)
```
    Put child/parent relation to cache for cascading op
    
    Parameters:
    parent -
    child -
  - removeChildParent
```
void removeChildParent(Object child)
```
    Remove child/parent relation from cache
    
    Parameters:
    child -
  - registerInsertedKey
```
void registerInsertedKey(EntityPersister persister,
                       Serializable id)
```
    Register keys inserted during the current transaction
    
    Parameters:
    persister - The entity persister
    id - The id
  - wasInsertedDuringTransaction
```
boolean wasInsertedDuringTransaction(EntityPersister persister,
                                   Serializable id)
```
    Allows callers to check to see if the identified entity was inserted during the current transaction.
    
    Parameters:
    persister - The entity persister
    id - The id
    
    Returns:
    True if inserted during this transaction, false otherwise.

Interface PersistenceContext

Method Summary

Method Detail

isStateless

getSession

getLoadContexts

addUnownedCollection

useUnownedCollection

getBatchFetchQueue

clear

hasNonReadOnlyEntities

setEntryStatus

afterTransactionCompletion

getDatabaseSnapshot

getCachedDatabaseSnapshot

getNaturalIdSnapshot

addEntity

getEntity

containsEntity

removeEntity

getEntity

addEntity

getEntry

removeEntry

isEntryFor

getCollectionEntry

addEntity

addEntry

containsCollection

containsProxy

reassociateIfUninitializedProxy

reassociateProxy

unproxy

unproxyAndReassociate

checkUniqueness

narrowProxy

proxyFor

proxyFor

getCollectionOwner

getLoadedCollectionOwnerOrNull

getLoadedCollectionOwnerIdOrNull

addUninitializedCollection

addUninitializedDetachedCollection

addNewCollection

addInitializedDetachedCollection

addInitializedCollection

getCollection

addNonLazyCollection

initializeNonLazyCollections

getCollectionHolder

addCollectionHolder

removeCollectionHolder

getSnapshot

getCollectionEntryOrNull

getProxy

addProxy

removeProxy

getNullifiableEntityKeys

getEntitiesByKey

getEntityEntries

getCollectionEntries

getCollectionsByKey

getCascadeLevel

incrementCascadeLevel

decrementCascadeLevel

isFlushing

setFlushing

beforeLoad

afterLoad

isLoadFinished

toString

getOwnerId

getIndexInOwner

addNullProperty

isPropertyNull

isDefaultReadOnly

setDefaultReadOnly

isReadOnly

setReadOnly

replaceDelayedEntityIdentityInsertKeys