Module java.prefs
Package java.util.prefs

Class PreferenceChangeEvent

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

  • Constructor Details

    • 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 Details

    • 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.