Index (Frames) | Index (No Frames) | Package | Package Tree | Tree
java.util.prefs

Class PreferenceChangeEvent

java.lang.Object
|
+--java.util.EventObject
   |
   +--java.util.prefs.PreferenceChangeEvent


public class PreferenceChangeEvent

extends EventObject

ObjectEvent fired when a Preferences entry changes. This event is generated when a entry is added, changed or removed. When an entry is removed then getNewValue will return null.

Preference change events are only generated for entries in one particular preference node. Notification of subnode addition/removal is given by a NodeChangeEvent.

Since:Author:

Constructor Summary

PreferenceChangeEvent(java.util.prefs.Preferences node, java.lang.String key, java.lang.String value)

Creates a new PreferenceChangeEvent.

Method Summary

java.lang.StringgetKey()

Returns the key of the entry that was added, changed or removed.
java.lang.StringgetNewValue()

Returns the new value of the entry that was added or changed, or returns null when the entry was removed.
java.util.prefs.PreferencesgetNode()

Returns the source Preference node from which an entry was added, changed or removed.

Constructor Details

PreferenceChangeEvent

public PreferenceChangeEvent(java.util.prefs.Preferences node, java.lang.String key, java.lang.String value)

Creates a new PreferenceChangeEvent.

Parameters:


Method Details

getKey

public String getKey()

Returns the key of the entry that was added, changed or removed.


getNewValue

public String getNewValue()

Returns the new value of the entry that was added or changed, or returns null when the entry was removed.


getNode

public Preferences getNode()

Returns the source Preference node from which an entry was added, changed or removed.