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Added in API level 1

Summary: Inherited Fields | Ctors | Methods | Inherited Methods | [Expand All]

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.

See also:

Summary

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.

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 obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

PreferenceChangeEvent

Added in API level 1

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

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

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

Preferences getNode ()

Returns the preference node that emitted the event.

Returns
`Preferences`	The preference node that emitted the event.

Interfaces

Classes

Exceptions

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PreferenceChangeEvent

Summary

Inherited fields

Public constructors

Public methods

Inherited methods

Public constructors

PreferenceChangeEvent

Public methods

getKey

getNewValue

getNode