Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class EventObject - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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Java^TM 2 Platform
Standard Edition

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java.util
Class EventObject

java.lang.Object
  |
  +--java.util.EventObject

Direct Known Subclasses:: AWTEvent, BeanContextEvent, CaretEvent, ChangeEvent, DragGestureEvent, DragSourceEvent, DropTargetEvent, HyperlinkEvent, ListDataEvent, ListSelectionEvent, MenuEvent, PopupMenuEvent, PropertyChangeEvent, TableColumnModelEvent, TableModelEvent, TreeExpansionEvent, TreeModelEvent, TreeSelectionEvent, UndoableEditEvent

public class EventObject
extends Object
implements Serializable

The Event class is the abstract root class from which all event state objects shall be derived.

All Event's are constructed with a reference to the object, the "source", that is logically deemed to be the object upon which the Event in question initially occurred upon.

See Also:: Serialized Form

Field Summary

protected Object source
          The object on which the Event initially occurred.

Constructor Summary

EventObject(Object source)
          Constructs a prototypical Event.

Method Summary

Object getSource()
          The object on which the Event initially occurred.

String toString()
          Returns a String representation of this EventObject.

Methods inherited from class java.lang.Object

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

Field Detail

source

protected transient Object source

The object on which the Event initially occurred.

Constructor Detail

EventObject

public EventObject(Object source)

Constructs a prototypical Event.

Parameters:: source - The object on which the Event initially occurred.

Method Detail

getSource

public Object getSource()