PreferenceChangeEvent (Java 2 Platform SE 5.0) (original) (raw)

java.util.prefs

Class PreferenceChangeEvent

java.lang.Object extended by java.util.EventObject java.util.prefs.PreferenceChangeEvent

All Implemented Interfaces:

public class 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.

Since:

1.4

Field Summary

Fields inherited from class java.util.EventObject
source

Constructor Summary
[PreferenceChangeEvent](../../../java/util/prefs/PreferenceChangeEvent.html#PreferenceChangeEvent%28java.util.prefs.Preferences, java.lang.String, java.lang.String%29)(Preferences node,String key,String newValue) Constructs a new PreferenceChangeEvent instance.

Method Summary
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.

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](../../../java/lang/Object.html#wait%28long, int%29)

Constructor Detail

PreferenceChangeEvent

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.

Method Detail

getNode

public Preferences getNode()

Returns the preference node that emitted the event.

Returns:

The preference node that emitted the event.

getKey

public String getKey()

Returns the key of the preference that was changed.

Returns:

The key of the preference that was changed.

getNewValue

public String getNewValue()

Returns the new value for the preference.

Returns:

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

Submit a bug or feature
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.