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Java Standard Edition (SE)

PreferenceChangeEvent


compact3
java.util.prefs

Class 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:
    Preferences, PreferenceChangeListener, NodeChangeEvent
    • Constructor Detail

      • 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 Detail

      • 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.


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