Package Summary Overview Summary

class:PreferenceChangeEvent [NONE]

All Implemented Interfaces:

Serializable
```
public class PreferenceChangeEvent
extends EventObject
```
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

See Also:

Preferences, PreferenceChangeListener, NodeChangeEvent

constructor:PreferenceChangeEvent(java.util.prefs.Preferences, java.lang.String, java.lang.String) [NONE]

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:getNode() [NONE]

getNode
```
public Preferences getNode()
```
Returns the preference node that emitted the event.

Returns:

The preference node that emitted the event.

method:getKey() [NONE]

getKey
```
public String getKey()
```
Returns the key of the preference that was changed.

Returns:

The key of the preference that was changed.

method:getNewValue() [NONE]

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.

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