ObjectChangeSet (EclipseLink 2.6.2, API Reference)

```
public interface ObjectChangeSet
```
Purpose: Provides API to the Class that holds all changes made to a particular Object.
Description: The ObjectChangeSet class represents a single Object registered in the UnitOfWork. It is owned by the larger UnitOfWorkChangeSet.

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`equals(java.lang.Object objectChange)`
`java.util.List<java.lang.String>`	`getChangedAttributeNames()` ADVANCED: This method will return a collection of the names of attributes changed in an object.
`java.util.List<ChangeRecord>`	`getChanges()` ADVANCED: This method returns a reference to the collection of changes within this changeSet.
`ChangeRecord`	`getChangesForAttributeNamed(java.lang.String attributeName)` ADVANCED: Returns the change record for the specified attribute name.
`java.lang.String`	`getClassName()` ADVANCE: This method returns the class Name that this changeSet Represents.
`java.lang.Class`	`getClassType(Session session)` ADVANCE: This method returns the class type that this changeSet Represents.
`java.lang.Object`	`getId()` ADVANCED: This method returns the primary key for the object that this change set represents.
`java.lang.Object`	`getNewKey()` ADVANCED: This method returns the key value that this object will be stored under in it's respective Map.
`java.lang.Object`	`getOldKey()` ADVANCED: This method returns the key value that this object was stored under in it's respective Map.
`java.util.Vector`	`getPrimaryKeys()` Deprecated. since EclipseLink 2.1, replaced by getId()
`UnitOfWorkChangeSet`	`getUOWChangeSet()` ADVANCED: This method is used to return the parent ChangeSet.
`java.lang.Object`	`getWriteLockValue()` ADVANCED: This method is used to return the lock value of the object this changeSet represents.
`boolean`	`hasChangeFor(java.lang.String attributeName)` ADVANCED: This method will return true if the specified attribute has been changed.
`boolean`	`hasChanges()` ADVANCED: Returns true if this particular changeSet has changes.
`boolean`	`isNew()` ADVANCED: Returns true if this ObjectChangeSet represents a new object.
`void`	`setShouldRecalculateAfterUpdateEvent(boolean shouldRecalculateAfterUpdateEvent)` ADVANCED Set whether this ObjectChangeSet should be recalculated after changes in event
`boolean`	`shouldRecalculateAfterUpdateEvent()` ADVANCED Returns true if this ObjectChangeSet should be recalculated after changes in event

- Method Detail
  - equals
```
boolean equals(java.lang.Object objectChange)
```
    Overrides:
    
    equals in class java.lang.Object
  - getChangedAttributeNames
```
java.util.List<java.lang.String> getChangedAttributeNames()
```
    ADVANCED: This method will return a collection of the names of attributes changed in an object.
  - getChanges
```
java.util.List<ChangeRecord> getChanges()
```
    ADVANCED: This method returns a reference to the collection of changes within this changeSet.
  - getClassType
```
java.lang.Class getClassType(Session session)
```
    ADVANCE: This method returns the class type that this changeSet Represents.
  - getClassName
```
java.lang.String getClassName()
```
    ADVANCE: This method returns the class Name that this changeSet Represents.
  - getOldKey
```
java.lang.Object getOldKey()
```
    ADVANCED: This method returns the key value that this object was stored under in it's respective Map. This is old relevant for collection mappings that use a Map.
  - getNewKey
```
java.lang.Object getNewKey()
```
    ADVANCED: This method returns the key value that this object will be stored under in it's respective Map. This is old relevant for collection mappings that use a Map.
  - getPrimaryKeys
```
@Deprecated
java.util.Vector getPrimaryKeys()
```
    Deprecated. since EclipseLink 2.1, replaced by getId()
    
    ADVANCED: This method returns the primary key for the object that this change set represents.
    
    See Also:
    getId()
  - getId
```
java.lang.Object getId()
```
    ADVANCED: This method returns the primary key for the object that this change set represents.
  - getUOWChangeSet
```
UnitOfWorkChangeSet getUOWChangeSet()
```
    ADVANCED: This method is used to return the parent ChangeSet.
  - getWriteLockValue
```
java.lang.Object getWriteLockValue()
```
    ADVANCED: This method is used to return the lock value of the object this changeSet represents.
  - getChangesForAttributeNamed
```
ChangeRecord getChangesForAttributeNamed(java.lang.String attributeName)
```
    ADVANCED: Returns the change record for the specified attribute name.
  - hasChangeFor
```
boolean hasChangeFor(java.lang.String attributeName)
```
    ADVANCED: This method will return true if the specified attribute has been changed.
    
    Parameters:
    attributeName - the name of the attribute to search for.
  - hasChanges
```
boolean hasChanges()
```
    ADVANCED: Returns true if this particular changeSet has changes.
  - isNew
```
boolean isNew()
```
    ADVANCED: Returns true if this ObjectChangeSet represents a new object.
  - shouldRecalculateAfterUpdateEvent
```
boolean shouldRecalculateAfterUpdateEvent()
```
    ADVANCED Returns true if this ObjectChangeSet should be recalculated after changes in event
    
    Returns:
  - setShouldRecalculateAfterUpdateEvent
```
void setShouldRecalculateAfterUpdateEvent(boolean shouldRecalculateAfterUpdateEvent)
```
    ADVANCED Set whether this ObjectChangeSet should be recalculated after changes in event

Interface ObjectChangeSet

Method Summary

Method Detail

equals

getChangedAttributeNames

getChanges

getClassType

getClassName

getOldKey

getNewKey

getPrimaryKeys

getId

getUOWChangeSet

getWriteLockValue

getChangesForAttributeNamed

hasChangeFor

hasChanges

isNew

shouldRecalculateAfterUpdateEvent

setShouldRecalculateAfterUpdateEvent