PreferenceChangeEvent

public class PreferenceChangeEvent
extends EventObject

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


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

Inherited fields

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.

Inherited methods

Public constructors

PreferenceChangeEvent

added in API level 1
public PreferenceChangeEvent (Preferences node, 
                String key, 
                String newValue)

Constructs a new PreferenceChangeEvent instance.

Parameters
node Preferences: The Preferences node that emitted the event.

key String: The key of the preference that was changed.

newValue String: The new value of the preference, or null if the preference is being removed.

Public methods

getKey

added in API level 1
public String getKey ()

Returns the key of the preference that was changed.

Returns
String The key of the preference that was changed.

getNewValue

added in API level 1
public String getNewValue ()

Returns the new value for the preference.

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

getNode

added in API level 1
public Preferences getNode ()

Returns the preference node that emitted the event.

Returns
Preferences The preference node that emitted the event.