Preferences.PropertyChangeEvent

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org.eclipse.core.runtime
Class Preferences.PropertyChangeEvent

java.lang.Object
  java.util.EventObject
      org.eclipse.core.runtime.Preferences.PropertyChangeEvent

All Implemented Interfaces:: java.io.Serializable

Enclosing class:: Preferences

public static class Preferences.PropertyChangeEvent
extends java.util.EventObject

An event object describing a change to a named property.

The preferences object reports property change events for internal state changes that may be of interest to external parties. A special listener interface (Preferences.IPropertyChangeListener) is defined for this purpose. Listeners are registered via the Preferences.addPropertyChangeListener method.

Clients cannot instantiate or subclass this class.

Field Summary

private java.lang.Object newValue
          The new value of the changed property, or null if not known or not relevant.

private java.lang.Object oldValue
          The old value of the changed property, or null if not known or not relevant.

private java.lang.String propertyName
          The name of the changed property.

Fields inherited from class java.util.EventObject

source

Constructor Summary

protected Preferences.PropertyChangeEvent(java.lang.Object source, java.lang.String property, java.lang.Object oldValue, java.lang.Object newValue)
          Creates a new property change event.

Method Summary

java.lang.Object getNewValue()
          Returns the new value of the property.

java.lang.Object getOldValue()
          Returns the old value of the property.

java.lang.String getProperty()
          Returns the name of the property that changed.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

propertyName

private java.lang.String propertyName

The name of the changed property.

oldValue

private java.lang.Object oldValue

The old value of the changed property, or null if not known or not relevant.

newValue

private java.lang.Object newValue

The new value of the changed property, or null if not known or not relevant.

Constructor Detail