PreferenceChangeEvent

Class Overview

This is the event class to indicate that a preference has been added, deleted or updated.

Please note that although the class is marked as Serializable by inheritance from EventObject, this type is not intended to be serialized so the serialization methods do nothing but throw a NotSerializableException.

Summary

Public Constructors
	PreferenceChangeEvent(Preferences p, String k, String v) Construct a new `PreferenceChangeEvent` instance.

Public Constructors

PreferenceChangeEvent(Preferences p, String k, String v)

Construct a new PreferenceChangeEvent instance.

Public Methods
String	getKey() Gets the key of the changed preference.
String	getNewValue() Gets the new value of the changed preference or `null` if the preference has been removed.
Preferences	getNode() Gets the `Preferences` instance that fired this event.

Public Methods

String

getKey()

Gets the key of the changed preference.

String

getNewValue()

Gets the new value of the changed preference or null if the preference has been removed.

Preferences

getNode()

Gets the Preferences instance that fired this event.

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Inherited Methods

From class java.util.EventObject

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

Public Constructors

public PreferenceChangeEvent (Preferences p, String k, String v)

Added in API level 1

Construct a new PreferenceChangeEvent instance.

Parameters

p	the `Preferences` instance that fired this event; this object is considered as the event's source.
k	the changed preference key.
v	the new value of the changed preference, this value can be `null`, which means the preference has been removed.

Public Methods

public String getKey ()

Added in API level 1

Gets the key of the changed preference.

Returns

the changed preference's key.

public String getNewValue ()

Added in API level 1

Gets the new value of the changed preference or null if the preference has been removed.

Returns

the new value of the changed preference or null if the preference has been removed.

public Preferences getNode ()

Added in API level 1

Gets the Preferences instance that fired this event.

Returns

the Preferences instance that fired this event.

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

Results

Interfaces

Classes

Exceptions

Class Overview

See Also

Summary

Public Constructors

public PreferenceChangeEvent (Preferences p, String k, String v)

Parameters

Public Methods

public String getKey ()

Returns

public String getNewValue ()

Returns

public Preferences getNode ()

Returns