public class

PreferenceChangeEvent

extends EventObject
java.lang.Object
   ↳ java.util.EventObject
     ↳ java.util.prefs.PreferenceChangeEvent

Class Overview

An event emitted by a Preferences node to indicate that a preference has been added, removed or has had its value changed.

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

Summary

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Inherited Fields
From class java.util.EventObject
Public Constructors
PreferenceChangeEvent(Preferences node, String key, String newValue)
Constructs a new PreferenceChangeEvent instance.
Public Methods
String getKey()
Returns the key of the preference that was changed.
String getNewValue()
Returns the new value for the preference.
Preferences getNode()
Returns the preference node that emitted the event.
[Expand]
Inherited Methods
From class java.util.EventObject
From class java.lang.Object

Public Constructors

public PreferenceChangeEvent (Preferences node, String key, String newValue)

Constructs a new PreferenceChangeEvent instance.

Parameters
node The Preferences node that emitted the event.
key The key of the preference that was changed.
newValue The new value of the preference, or null if the preference is being removed.

Public Methods

public String getKey ()

Returns the key of the preference that was changed.

Returns
  • The key of the preference that was changed.

public String getNewValue ()

Returns the new value for the preference.

Returns
  • The new value for the preference, or null if the preference was removed.

public Preferences getNode ()

Returns the preference node that emitted the event.

Returns
  • The preference node that emitted the event.