Package org.eclipse.persistence.descriptors.changetracking

Class MapChangeEvent

java.lang.Object

java.util.EventObject

java.beans.PropertyChangeEvent

org.eclipse.persistence.descriptors.changetracking.CollectionChangeEvent

org.eclipse.persistence.descriptors.changetracking.MapChangeEvent

All Implemented Interfaces:

Serializable

public class MapChangeEvent
extends CollectionChangeEvent

Purpose: Define a change event for Map types.

Description: For any object that wishes to use either object change tracking or attribute change tracking, its map attributes need to fire MapChangeEvent in the put or remove methods. In the case of a replace (ie key already exists) both a remove for that key and a put using the new value and old key must be fired.

Responsibilities: Create a MapChangeEvent for an object

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Object	key	INTERNAL: The value of the key that was updated.

Fields inherited from class org.eclipse.persistence.descriptors.changetracking.CollectionChangeEvent

ADD, changeType, index, isChangeApplied, isSet, REMOVE

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
MapChangeEvent(Object collectionOwner, String propertyName, Object collectionChanged, Object elementKey, Object elementValue, int changeType, boolean isChangeApplied)	PUBLIC: Create a MapChangeEvent for an object based on the property name, the updated Map, the new Key and the new Value and change type (add or remove)

Method Summary

Modifier and Type	Method	Description
Object	getKey()	INTERNAL: Return the change type
void	setKey(Object key)	INTERNAL: Set the change type

Methods inherited from class org.eclipse.persistence.descriptors.changetracking.CollectionChangeEvent

getChangeType, getIndex, isChangeApplied, isSet, setIndex

Methods inherited from class java.beans.PropertyChangeEvent

getNewValue, getOldValue, getPropagationId, getPropertyName, setPropagationId, toString

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

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

Field Details

key

protected Object key

INTERNAL: The value of the key that was updated.

Constructor Details

MapChangeEvent

public MapChangeEvent(Object collectionOwner,
 String propertyName,
 Object collectionChanged,
 Object elementKey,
 Object elementValue,
 int changeType,
 boolean isChangeApplied)

PUBLIC: Create a MapChangeEvent for an object based on the property name, the updated Map, the new Key and the new Value and change type (add or remove)

Method Details

getKey

public Object getKey()

INTERNAL: Return the change type

setKey

public void setKey(Object key)

INTERNAL: Set the change type