- 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 class EventObject extends Object implements Serializable
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:
- Serialized Form
Constructor Summary
Constructors Constructor Description EventObject(Object source)Constructs a prototypical Event.
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ObjectgetSource()The object on which the Event initially occurred.StringtoString()Returns a String representation of this EventObject.
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- Throws:
IllegalArgumentException- if source is null
Method Detail
getSource
public Object getSource()
The object on which the Event initially occurred.- Returns:
- the object on which the Event initially occurred