java.util.prefs
Class NodeChangeEvent

java.lang.Object
  java.util.EventObject
      java.util.prefs.NodeChangeEvent

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

AbstractPreferences.NodeAddedEvent, AbstractPreferences.NodeRemovedEvent

public class NodeChangeEvent

extends EventObject

An event emitted by a Preferences node to indicate that a child of that node has been added or removed.

Note, that although NodeChangeEvent inherits Serializable interface from java.util.EventObject, it is not intended to be Serializable. Appropriate serialization methods are implemented to throw NotSerializableException.

Since:

1.4

Author:

Josh Bloch

See Also:

Preferences, NodeChangeListener, PreferenceChangeEvent

Field Summary

private Preferences

child The node that was added or removed.

Fields inherited from class java.util.EventObject

source

Constructor Summary

NodeChangeEvent(Preferences parent, Preferences child)
Constructs a new NodeChangeEvent instance.

Method Summary

Preferences	getChild() Returns the node that was added or removed.
Preferences	getParent() Returns the parent of the node that was added or removed.
private void	readObject(ObjectInputStream in) Throws NotSerializableException, since NodeChangeEvent objects are not intended to be serializable.
private void	writeObject(ObjectOutputStream out) Throws NotSerializableException, since NodeChangeEvent objects are not intended to be serializable.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Detail

child

private Preferences child

The node that was added or removed.

Constructor Detail

NodeChangeEvent

public NodeChangeEvent(Preferences parent,
                       Preferences child)

Constructs a new NodeChangeEvent instance.

Parameters:

parent - The parent of the node that was added or removed.

child - The node that was added or removed.

Method Detail

getParent

public Preferences getParent()

Returns the parent of the node that was added or removed.

Returns:

The parent Preferences node whose child was added or removed

getChild

public Preferences getChild()

Returns the node that was added or removed.

Returns:

The node that was added or removed.

writeObject

private void writeObject(ObjectOutputStream out)
                  throws NotSerializableException

Throws NotSerializableException, since NodeChangeEvent objects are not intended to be serializable.

Throws:

NotSerializableException

readObject

private void readObject(ObjectInputStream in)
                 throws NotSerializableException

Throws NotSerializableException, since NodeChangeEvent objects are not intended to be serializable.

Throws:

NotSerializableException