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.
Inherited fields |
---|
From
class
java.util.EventObject
|
Public constructors | |
---|---|
PreferenceChangeEvent(Preferences node, String key, String newValue)
Constructs a new |
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
|
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.
|
String getKey ()
Returns the key of the preference that was changed.
Returns | |
---|---|
String |
The key of the preference that was changed. |
String getNewValue ()
Returns the new value for the preference.
Returns | |
---|---|
String |
The new value for the preference, or null if the preference was removed. |
Preferences getNode ()
Returns the preference node that emitted the event.
Returns | |
---|---|
Preferences |
The preference node that emitted the event. |