Class CollectionEntry

java.lang.Object

org.hibernate.engine.spi.CollectionEntry

All Implemented Interfaces:

Serializable

public final class CollectionEntry
extends Object
implements Serializable

We need an entry to tell us all about the current state of a collection with respect to its persistent state

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
CollectionEntry(PersistentCollection<?> collection, SessionFactoryImplementor factory)	For initialized detached collections
CollectionEntry(PersistentCollection<?> collection, CollectionPersister loadedPersister, Object loadedKey, boolean ignore, boolean readOnly)	For collections just loaded from the database
CollectionEntry(CollectionPersister loadedPersister, Object loadedKey)	For uninitialized detached collections
CollectionEntry(CollectionPersister persister, PersistentCollection<?> collection)	For newly wrapped collections, or dereferenced collection wrappers

Method Summary

Modifier and Type	Method	Description
void	afterAction(PersistentCollection<?> collection)	Called after execution of an action
static CollectionEntry	deserialize(ObjectInputStream ois, SessionImplementor session)	Custom deserialization routine used during deserialization of a Session/PersistenceContext for increased performance.
Object	getCurrentKey()	This is only available late during the flush cycle
CollectionPersister	getCurrentPersister()
Object	getKey()
Object	getLoadedKey()
CollectionPersister	getLoadedPersister()	This is only available late during the flush cycle
Collection<?>	getOrphans(String entityName, PersistentCollection<?> collection)	Get the collection orphans (entities which were removed from the collection)
String	getRole()
Serializable	getSnapshot()
boolean	isIgnore()
boolean	isReadOnly()
boolean	isSnapshotEmpty(PersistentCollection<?> collection)
void	postFlush(PersistentCollection<?> collection, CollectionFlushActionTracker collectionFlushActionTracker)	Called after a successful flush
void	postInitialize(PersistentCollection<?> collection, SharedSessionContractImplementor session)
void	preFlush(PersistentCollection<?> collection)
void	resetStoredSnapshot(PersistentCollection<?> collection, Serializable storedSnapshot)	Reset the stored snapshot for both the persistent collection and this collection entry.
void	serialize(ObjectOutputStream oos)	Custom serialization routine used during serialization of a Session/PersistenceContext for increased performance.
void	setCurrentKey(Object currentKey)
void	setCurrentPersister(CollectionPersister currentPersister)
void	setReadOnly(boolean readOnly, PersistentCollection<?> collection)
void	setRole(String role)
String	toString()
boolean	wasDereferenced()

Methods inherited from class Object

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

Constructor Details

CollectionEntry

public CollectionEntry(CollectionPersister persister,
 PersistentCollection<?> collection)

For newly wrapped collections, or dereferenced collection wrappers

CollectionEntry

public CollectionEntry(PersistentCollection<?> collection,
 CollectionPersister loadedPersister,
 Object loadedKey,
 boolean ignore,
 boolean readOnly)

For collections just loaded from the database

CollectionEntry

public CollectionEntry(CollectionPersister loadedPersister,
 Object loadedKey)

For uninitialized detached collections

CollectionEntry

public CollectionEntry(PersistentCollection<?> collection,
 SessionFactoryImplementor factory)

For initialized detached collections

Method Details

preFlush

public void preFlush(PersistentCollection<?> collection)

postInitialize

public void postInitialize(PersistentCollection<?> collection,
 SharedSessionContractImplementor session)

postFlush

public void postFlush(PersistentCollection<?> collection,
 CollectionFlushActionTracker collectionFlushActionTracker)

Called after a successful flush

afterAction

public void afterAction(PersistentCollection<?> collection)

Called after execution of an action

getKey

@Nullable
public Object getKey()

getRole

@Nullable
public String getRole()

getSnapshot

@Nullable
public Serializable getSnapshot()

isReadOnly

public boolean isReadOnly()

resetStoredSnapshot

public void resetStoredSnapshot(PersistentCollection<?> collection,
 Serializable storedSnapshot)

Reset the stored snapshot for both the persistent collection and this collection entry. Used during the merge of detached collections.

Parameters:

collection - the persistent collection to be updated

storedSnapshot - the new stored snapshot

setReadOnly

public void setReadOnly(boolean readOnly,
 PersistentCollection<?> collection)

wasDereferenced

public boolean wasDereferenced()

isIgnore

public boolean isIgnore()

getCurrentPersister

@Nullable
public CollectionPersister getCurrentPersister()

setCurrentPersister

public void setCurrentPersister(@Nullable
 CollectionPersister currentPersister)

getCurrentKey

@Nullable
public Object getCurrentKey()

This is only available late during the flush cycle

setCurrentKey

public void setCurrentKey(@Nullable
 Object currentKey)

getLoadedPersister

@Nullable
public CollectionPersister getLoadedPersister()

This is only available late during the flush cycle

getLoadedKey

@Nullable
public Object getLoadedKey()

setRole

public void setRole(@Nullable
 String role)

toString

public String toString()

Overrides:

toString in class Object

getOrphans

public Collection<?> getOrphans(String entityName,
 PersistentCollection<?> collection)

Get the collection orphans (entities which were removed from the collection)

isSnapshotEmpty

public boolean isSnapshotEmpty(PersistentCollection<?> collection)

serialize

public void serialize(ObjectOutputStream oos)
               throws IOException

Custom serialization routine used during serialization of a Session/PersistenceContext for increased performance.

Parameters:

oos - The stream to which we should write the serial data.

Throws:

IOException

deserialize

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

Custom deserialization routine used during deserialization of a Session/PersistenceContext for increased performance.

Parameters:

ois - The stream from which to read the entry.

session - The session being deserialized.

Returns:

The deserialized CollectionEntry

Throws:

IOException

ClassNotFoundException