java.lang.Object
- org.eclipse.persistence.internal.sessions.UnitOfWorkChangeSet

All Implemented Interfaces:

Serializable, UnitOfWorkChangeSet
```
public class UnitOfWorkChangeSet
extends Object
implements Serializable, UnitOfWorkChangeSet
```
Purpose: This is the overall collection of changes.
Description: It holds all of the object changes and all ObjectChanges, with the same classType and primary keys, referenced in a changeSet should be the same object.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`protected Map<ObjectChangeSet,ObjectChangeSet>`	`aggregateChangeSets`
`protected Map<ObjectChangeSet,ObjectChangeSet>`	`allChangeSets`
`protected Map<Object,ObjectChangeSet>`	`cloneToObjectChangeSet`
`protected Map<ObjectChangeSet,ObjectChangeSet>`	`deletedObjects`
`protected boolean`	`hasChanges`	This attribute is set to true if a changeSet with changes has been added
`protected boolean`	`hasForcedChanges`
`protected boolean`	`isChangeSetFromOutsideUOW`	Flag set when calling commitToDatabaseWithPreBuiltChangeSet so we are aware the UOW does not contain the changes from this change set.
`protected Map<Class,Map<ObjectChangeSet,ObjectChangeSet>>`	`newObjectChangeSets`
`protected Map<Class,Map<ObjectChangeSet,ObjectChangeSet>>`	`objectChanges`	This is the collection of ObjectChanges held by this ChangeSet
`protected Map<ObjectChangeSet,Object>`	`objectChangeSetToUOWClone`
`protected AbstractSession`	`session`	Stores unit of work before it is serialized.

Constructor Summary

Constructors
Constructor Description

UnitOfWorkChangeSet()
INTERNAL: Create a ChangeSet

UnitOfWorkChangeSet(AbstractSession session)
INTERNAL: Create a ChangeSet

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addDeletedObject(Object object, AbstractSession session)`	INTERNAL: Add the Deleted object to the changeSet.
`void`	`addDeletedObjects(Map deletedObjects, AbstractSession session)`	INTERNAL: Add the Deleted objects to the changeSet.
`protected void`	`addNewObjectChangeSet(ObjectChangeSet objectChanges, AbstractSession session)`	INTERNAL: Add to the changes for 'object' object to this changeSet.
`void`	`addObjectChangeSet(ObjectChangeSet objectChanges, AbstractSession session, boolean forceToNewObjectList)`	INTERNAL: Add to the changes for 'object' object to this changeSet.
`void`	`addObjectChangeSetForIdentity(ObjectChangeSet objectChanges, Object object)`	INTERNAL: Add change records to the lists used to maintain identity.
`UnitOfWorkChangeSet`	`buildCacheCoordinationMergeChangeSet(AbstractSession session)`	INTERNAL: Return a new UnitOfWorkChangeSet that only includes data require for the remote merge, for cache coordination.
`ObjectChangeSet`	`findObjectChangeSet(ObjectChangeSet changeSet, UnitOfWorkChangeSet mergeFromChangeSet)`	INTERNAL: This method can be used find the equivalent changeset within this UnitOfWorkChangeSet Aggregates, and new objects without primaryKeys from serialized ChangeSets will not be found Which may result in duplicates, in the UnitOfWorkChangeSet.
`ObjectChangeSet`	`findOrCreateLocalObjectChangeSet(Object entityClone, ClassDescriptor descriptor, boolean isNew)`	INTERNAL" This method is used during the merge process to either find the existing ChangeSet or create a new one.
`ObjectChangeSet`	`findOrIntegrateObjectChangeSet(ObjectChangeSet tofind, UnitOfWorkChangeSet mergeFromChangeSet)`	INTERNAL: This method will be used during the merge process to either find an equivalent change set within this UnitOfWorkChangeSet or integrate that changeset into this UOW ChangeSet
`Set<ClassDescriptor>`	`findUpdatedObjectsClasses()`	INTERNAL: Returns the set of classes corresponding to updated objects in objectChanges.
`Map<ObjectChangeSet,ObjectChangeSet>`	`getAggregateChangeSets()`	INTERNAL: Get the Aggregate list.
`Map<ObjectChangeSet,ObjectChangeSet>`	`getAllChangeSets()`	INTERNAL: This method returns a reference to the collection.
`Map<Object,ObjectChangeSet>`	`getCloneToObjectChangeSet()`	INTERNAL: Get the clone to object change hash table.
`Map<ObjectChangeSet,ObjectChangeSet>`	`getDeletedObjects()`	INTERNAL: This method returns the reference to the deleted objects from the changeSet.
`Map<Class,Map<ObjectChangeSet,ObjectChangeSet>>`	`getNewObjectChangeSets()`	INTERNAL: This method will return a reference to the new object change set collections.
`Map<Class,Map<ObjectChangeSet,ObjectChangeSet>>`	`getObjectChanges()`	INTERNAL: Returns the ObjectChanges held by this ChangeSet.
`ObjectChangeSet`	`getObjectChangeSetForClone(Object clone)`	ADVANCED: Get ChangeSet for a particular clone
`protected Map<ObjectChangeSet,Object>`	`getObjectChangeSetToUOWClone()`	INTERNAL: This method returns a reference to the collection
`AbstractSession`	`getSession()`	Return the session.
`Object`	`getUOWCloneForObjectChangeSet(ObjectChangeSet changeSet)`	ADVANCED: This method returns the Clone for a particular changeSet
`boolean`	`hasChanges()`	INTERNAL: Returns true if the Unit Of Work change Set has changes
`boolean`	`hasDeletedObjects()`	INTERNAL: Returns true if any deleted objects.
`boolean`	`hasForcedChanges()`	INTERNAL: Returns true if this uowChangeSet contains an objectChangeSet that has forced SQL changes.
`boolean`	`isChangeSetFromOutsideUOW()`	INTERNAL: Get the internal flag that tells that this change set was built outside this UOW and the changes it contains cannot be calculated from the contents of this UOW
`ObjectChangeSet`	`mergeObjectChanges(ObjectChangeSet objectChangeSet, UnitOfWorkChangeSet mergeFromChangeSet)`	INTERNAL: This method will be used to merge a change set into an UnitOfWorkChangeSet This method returns the local instance of the changeset
`void`	`mergeUnitOfWorkChangeSet(UnitOfWorkChangeSet mergeFromChangeSet, AbstractSession session, boolean postCommit)`	INTERNAL: THis method will be used to merge another changeset into this changeset.
`void`	`putNewObjectInChangesList(ObjectChangeSet objectChangeSet, AbstractSession session)`	INTERNAL: Used to rehash the new objects back into the objectChanges list for serialization Assumes the transaction in in post commit stage.
`void`	`removeObjectChangeSet(ObjectChangeSet changeSet)`	INTERNAL: Add the changed Object's records to the ChangeSet.
`void`	`removeObjectChangeSetFromNewList(ObjectChangeSet objectChangeSet, AbstractSession session)`	INTERNAL: Used to remove a new object from the new objects list once it has been inserted and added to the objectChangesList
`void`	`setAllChangeSets(Map allChangeSets)`	INTERNAL: Sets the collection of ObjectChanges in the change Set.
`void`	`setCloneToObjectChangeSet(Map<Object,ObjectChangeSet> cloneToObjectChangeSet)`	INTERNAL: This method is used to set the map for cloneToObject reference.
`void`	`setDeletedObjects(Map deletedObjects)`	INTERNAL: Sets the collection of deleted objects.
`void`	`setHasChanges(boolean flag)`	INTERNAL: Set whether the Unit Of Work change Set has changes
`void`	`setIsChangeSetFromOutsideUOW(boolean isChangeSetFromOutsideUOW)`	INTERNAL: Set the internal flag that tells that this change set was built outside this UOW and the changes it contains cannot be calculated from the contents of this UOW
`protected void`	`setObjectChanges(Map objectChanges)`	INTERNAL: Sets the collection of ObjectChanges in the change Set.
`void`	`setObjectChangeSetToUOWClone(Map<ObjectChangeSet,Object> objectChangeSetToUOWClone)`	INTERNAL: This method is used to insert a new collection into the UOWChangeSet.
`void`	`setSession(AbstractSession session)`	INTERNAL: Set the session.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - objectChanges
```
protected Map<Class,Map<ObjectChangeSet,ObjectChangeSet>> objectChanges
```
    This is the collection of ObjectChanges held by this ChangeSet
  - newObjectChangeSets
```
protected Map<Class,Map<ObjectChangeSet,ObjectChangeSet>> newObjectChangeSets
```
  - cloneToObjectChangeSet
```
protected Map<Object,ObjectChangeSet> cloneToObjectChangeSet
```
  - objectChangeSetToUOWClone
```
protected Map<ObjectChangeSet,Object> objectChangeSetToUOWClone
```
  - aggregateChangeSets
```
protected Map<ObjectChangeSet,ObjectChangeSet> aggregateChangeSets
```
  - allChangeSets
```
protected Map<ObjectChangeSet,ObjectChangeSet> allChangeSets
```
  - deletedObjects
```
protected Map<ObjectChangeSet,ObjectChangeSet> deletedObjects
```
  - hasChanges
```
protected boolean hasChanges
```
    This attribute is set to true if a changeSet with changes has been added
  - hasForcedChanges
```
protected boolean hasForcedChanges
```
  - isChangeSetFromOutsideUOW
```
protected boolean isChangeSetFromOutsideUOW
```
    Flag set when calling commitToDatabaseWithPreBuiltChangeSet so we are aware the UOW does not contain the changes from this change set.
  - session
```
protected transient AbstractSession session
```
    Stores unit of work before it is serialized.
- Constructor Detail
  - UnitOfWorkChangeSet
```
public UnitOfWorkChangeSet()
```
    INTERNAL: Create a ChangeSet
  - UnitOfWorkChangeSet
```
public UnitOfWorkChangeSet(AbstractSession session)
```
    INTERNAL: Create a ChangeSet
- Method Detail
  - getSession
```
public AbstractSession getSession()
```
    Return the session. This only exists before serialization.
  - setSession
```
public void setSession(AbstractSession session)
```
    INTERNAL: Set the session. This only exists before serialization.
  - addDeletedObjects
```
public void addDeletedObjects(Map deletedObjects,
                              AbstractSession session)
```
    INTERNAL: Add the Deleted objects to the changeSet.
  - addDeletedObject
```
public void addDeletedObject(Object object,
                             AbstractSession session)
```
    INTERNAL: Add the Deleted object to the changeSet.
  - addObjectChangeSet
```
public void addObjectChangeSet(ObjectChangeSet objectChanges,
                               AbstractSession session,
                               boolean forceToNewObjectList)
```
    INTERNAL: Add to the changes for 'object' object to this changeSet. This method will not add to the lists that are used for identity lookups. The passed change set *must* either have changes or forced changes.
    
    Parameters:
    
    forceToNewObjectList - - Any pre commit actions should pass in true since new objects have extra-handling. Anything post commit, pass in false.
    
    See Also:
    
    addObjectChangeSetForIdentity(ObjectChangeSet, Object)
  - addNewObjectChangeSet
```
protected void addNewObjectChangeSet(ObjectChangeSet objectChanges,
                                     AbstractSession session)
```
    INTERNAL: Add to the changes for 'object' object to this changeSet. This method will not add to the lists that are used for identity lookups. It is called specifically for new objects, and new object will be moved to the standard changes list by the QueryMechanism after insert.
    
    Parameters:
    
    objectChanges - the new object change set
    
    See Also:
    
    addObjectChangeSetForIdentity(ObjectChangeSet, Object)
  - findObjectChangeSet
```
public ObjectChangeSet findObjectChangeSet(ObjectChangeSet changeSet,
                                           UnitOfWorkChangeSet mergeFromChangeSet)
```
    INTERNAL: This method can be used find the equivalent changeset within this UnitOfWorkChangeSet Aggregates, and new objects without primaryKeys from serialized ChangeSets will not be found Which may result in duplicates, in the UnitOfWorkChangeSet.
  - findOrIntegrateObjectChangeSet
```
public ObjectChangeSet findOrIntegrateObjectChangeSet(ObjectChangeSet tofind,
                                                      UnitOfWorkChangeSet mergeFromChangeSet)
```
    INTERNAL: This method will be used during the merge process to either find an equivalent change set within this UnitOfWorkChangeSet or integrate that changeset into this UOW ChangeSet
  - findOrCreateLocalObjectChangeSet
```
public ObjectChangeSet findOrCreateLocalObjectChangeSet(Object entityClone,
                                                        ClassDescriptor descriptor,
                                                        boolean isNew)
```
    INTERNAL" This method is used during the merge process to either find the existing ChangeSet or create a new one.
  - addObjectChangeSetForIdentity
```
public void addObjectChangeSetForIdentity(ObjectChangeSet objectChanges,
                                          Object object)
```
    INTERNAL: Add change records to the lists used to maintain identity. This will not actually add the changes to 'object' to the change set.
    
    Parameters:
    
    objectChanges - prototype.changeset.ObjectChanges
    
    See Also:
    
    addObjectChangeSet(ObjectChangeSet, AbstractSession, boolean)
  - getAggregateChangeSets
```
public Map<ObjectChangeSet,ObjectChangeSet> getAggregateChangeSets()
```
    INTERNAL: Get the Aggregate list. Lazy initializes the map if required.
  - getAllChangeSets
```
public Map<ObjectChangeSet,ObjectChangeSet> getAllChangeSets()
```
    INTERNAL: This method returns a reference to the collection.
    
    Specified by:
    
    getAllChangeSets in interface UnitOfWorkChangeSet
    
    Returns:
    
    Map
  - buildCacheCoordinationMergeChangeSet
```
public UnitOfWorkChangeSet buildCacheCoordinationMergeChangeSet(AbstractSession session)
```
    INTERNAL: Return a new UnitOfWorkChangeSet that only includes data require for the remote merge, for cache coordination.
    
    Parameters:
    
    session - current database session
  - getCloneToObjectChangeSet
```
public Map<Object,ObjectChangeSet> getCloneToObjectChangeSet()
```
    INTERNAL: Get the clone to object change hash table. Lazy initializes the map if required.
  - getDeletedObjects
```
public Map<ObjectChangeSet,ObjectChangeSet> getDeletedObjects()
```
    INTERNAL: This method returns the reference to the deleted objects from the changeSet.
    
    Specified by:
    
    getDeletedObjects in interface UnitOfWorkChangeSet
    
    Returns:
    
    Map
  - getObjectChanges
```
public Map<Class,Map<ObjectChangeSet,ObjectChangeSet>> getObjectChanges()
```
    INTERNAL: Returns the ObjectChanges held by this ChangeSet.
  - findUpdatedObjectsClasses
```
public Set<ClassDescriptor> findUpdatedObjectsClasses()
```
    INTERNAL: Returns the set of classes corresponding to updated objects in objectChanges.
  - getObjectChangeSetForClone
```
public ObjectChangeSet getObjectChangeSetForClone(Object clone)
```
    ADVANCED: Get ChangeSet for a particular clone
    
    Specified by:
    
    getObjectChangeSetForClone in interface UnitOfWorkChangeSet
    
    Returns:
    
    ObjectChangeSet the changeSet that represents a particular clone
  - getObjectChangeSetToUOWClone
```
protected Map<ObjectChangeSet,Object> getObjectChangeSetToUOWClone()
```
    INTERNAL: This method returns a reference to the collection
    
    Returns:
    
    Map
  - getUOWCloneForObjectChangeSet
```
public Object getUOWCloneForObjectChangeSet(ObjectChangeSet changeSet)
```
    ADVANCED: This method returns the Clone for a particular changeSet
    
    Specified by:
    
    getUOWCloneForObjectChangeSet in interface UnitOfWorkChangeSet
    
    Returns:
    
    Object the clone represented by the changeSet
  - hasChanges
```
public boolean hasChanges()
```
    INTERNAL: Returns true if the Unit Of Work change Set has changes
    
    Specified by:
    
    hasChanges in interface UnitOfWorkChangeSet
    
    Returns:
    
    boolean
  - hasDeletedObjects
```
public boolean hasDeletedObjects()
```
    INTERNAL: Returns true if any deleted objects. This should be used before accessing deleted object to avoid creation of map.
  - setHasChanges
```
public void setHasChanges(boolean flag)
```
    INTERNAL: Set whether the Unit Of Work change Set has changes
  - hasForcedChanges
```
public boolean hasForcedChanges()
```
    INTERNAL: Returns true if this uowChangeSet contains an objectChangeSet that has forced SQL changes. This is true whenever CMPPolicy.getForceUpdate() == true.
    
    Returns:
    
    boolean
  - mergeObjectChanges
```
public ObjectChangeSet mergeObjectChanges(ObjectChangeSet objectChangeSet,
                                          UnitOfWorkChangeSet mergeFromChangeSet)
```
    INTERNAL: This method will be used to merge a change set into an UnitOfWorkChangeSet This method returns the local instance of the changeset
  - mergeUnitOfWorkChangeSet
```
public void mergeUnitOfWorkChangeSet(UnitOfWorkChangeSet mergeFromChangeSet,
                                     AbstractSession session,
                                     boolean postCommit)
```
    INTERNAL: THis method will be used to merge another changeset into this changeset. The Main use of this method is for non-deferred writes and checkpointing so that the accumulated changes are collected and merged at the end of the transaction.
  - putNewObjectInChangesList
```
public void putNewObjectInChangesList(ObjectChangeSet objectChangeSet,
                                      AbstractSession session)
```
    INTERNAL: Used to rehash the new objects back into the objectChanges list for serialization Assumes the transaction in in post commit stage.
  - removeObjectChangeSetFromNewList
```
public void removeObjectChangeSetFromNewList(ObjectChangeSet objectChangeSet,
                                             AbstractSession session)
```
    INTERNAL: Used to remove a new object from the new objects list once it has been inserted and added to the objectChangesList
  - removeObjectChangeSet
```
public void removeObjectChangeSet(ObjectChangeSet changeSet)
```
    INTERNAL: Add the changed Object's records to the ChangeSet.
  - setIsChangeSetFromOutsideUOW
```
public void setIsChangeSetFromOutsideUOW(boolean isChangeSetFromOutsideUOW)
```
    INTERNAL: Set the internal flag that tells that this change set was built outside this UOW and the changes it contains cannot be calculated from the contents of this UOW
  - isChangeSetFromOutsideUOW
```
public boolean isChangeSetFromOutsideUOW()
```
    INTERNAL: Get the internal flag that tells that this change set was built outside this UOW and the changes it contains cannot be calculated from the contents of this UOW
  - setCloneToObjectChangeSet
```
public void setCloneToObjectChangeSet(Map<Object,ObjectChangeSet> cloneToObjectChangeSet)
```
    INTERNAL: This method is used to set the map for cloneToObject reference.
  - setObjectChanges
```
protected void setObjectChanges(Map objectChanges)
```
    INTERNAL: Sets the collection of ObjectChanges in the change Set.
  - setAllChangeSets
```
public void setAllChangeSets(Map allChangeSets)
```
    INTERNAL: Sets the collection of ObjectChanges in the change Set.
  - setDeletedObjects
```
public void setDeletedObjects(Map deletedObjects)
```
    INTERNAL: Sets the collection of deleted objects.
  - setObjectChangeSetToUOWClone
```
public void setObjectChangeSetToUOWClone(Map<ObjectChangeSet,Object> objectChangeSetToUOWClone)
```
    INTERNAL: This method is used to insert a new collection into the UOWChangeSet.
  - getNewObjectChangeSets
```
public Map<Class,Map<ObjectChangeSet,ObjectChangeSet>> getNewObjectChangeSets()
```
    INTERNAL: This method will return a reference to the new object change set collections.

Constructor	Description
`UnitOfWorkChangeSet()`	INTERNAL: Create a ChangeSet
`UnitOfWorkChangeSet(AbstractSession session)`	INTERNAL: Create a ChangeSet

Class UnitOfWorkChangeSet

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

objectChanges

newObjectChangeSets

cloneToObjectChangeSet

objectChangeSetToUOWClone

aggregateChangeSets

allChangeSets

deletedObjects

hasChanges

hasForcedChanges

isChangeSetFromOutsideUOW

session

Constructor Detail

UnitOfWorkChangeSet

UnitOfWorkChangeSet

Method Detail

getSession

setSession

addDeletedObjects

addDeletedObject

addObjectChangeSet

addNewObjectChangeSet

findObjectChangeSet

findOrIntegrateObjectChangeSet

findOrCreateLocalObjectChangeSet

addObjectChangeSetForIdentity

getAggregateChangeSets

getAllChangeSets

buildCacheCoordinationMergeChangeSet

getCloneToObjectChangeSet

getDeletedObjects

getObjectChanges

findUpdatedObjectsClasses

getObjectChangeSetForClone

getObjectChangeSetToUOWClone

getUOWCloneForObjectChangeSet

hasChanges

hasDeletedObjects

setHasChanges

hasForcedChanges

mergeObjectChanges

mergeUnitOfWorkChangeSet

putNewObjectInChangesList

removeObjectChangeSetFromNewList

removeObjectChangeSet

setIsChangeSetFromOutsideUOW

isChangeSetFromOutsideUOW

setCloneToObjectChangeSet

setObjectChanges

setAllChangeSets

setDeletedObjects

setObjectChangeSetToUOWClone

getNewObjectChangeSets