Class EventObject

java.lang.Object
java.util.EventObject
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
AppEvent,AWTEvent,BeanContextEvent,CaretEvent,ChangeEvent,ConnectionEvent,DragGestureEvent,DragSourceEvent,DropTargetEvent,FlavorEvent,HandshakeCompletedEvent,HyperlinkEvent,LineEvent,ListDataEvent,ListSelectionEvent,MenuEvent,NamingEvent,NamingExceptionEvent,NodeChangeEvent,Notification,PopupMenuEvent,PreferenceChangeEvent,PrintEvent,PropertyChangeEvent,RowSetEvent,RowSorterEvent,SSLSessionBindingEvent,StatementEvent,TableColumnModelEvent,TableModelEvent,TreeExpansionEvent,TreeModelEvent,TreeSelectionEvent,UndoableEditEvent,UnsolicitedNotificationEvent
public classEventObjectextendsObjectimplementsSerializable

The root class from which all event state objects shall be derived.

All Events 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.

Since:
1.1
See Also:

  • Field Details

    • source

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

  • Constructor Details

    • EventObject

      public EventObject(Object source)
      Constructs a prototypical Event.
      Parameters:
      source - the object on which the Event initially occurred
      Throws:
      IllegalArgumentException - if source is null

  • Method Details

    • getSource

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

    • toString

      public String toString()
      Returns a String representation of this EventObject.
      Overrides:
      toString in class Object
      Returns:
      a String representation of this EventObject