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Class java.awt.AWTEventMulticaster

java.lang.Object
   |
   +----java.awt.AWTEventMulticaster

public class AWTEventMulticaster

extends Object

implements ComponentListener, ContainerListener, FocusListener, KeyListener, MouseListener, MouseMotionListener, WindowListener, ActionListener, ItemListener, AdjustmentListener, TextListener

 public myComponent extends Component {
     ActionListener actionListener = null;
     public void addActionListener(ActionListener l) {
	   actionListener = AWTEventMulticaster.add(actionListener, l);
     }
     public void removeActionListener(ActionListener l) {
  	   actionListener = AWTEventMulticaster.remove(actionListener, l);
     }
     public void processEvent(AWTEvent e) {
         // when event occurs which causes "action" semantic
         if (actionListener != null) {
             actionListener.actionPerformed(new ActionEvent());
         }         
 }
 

a

b

AWTEventMulticaster(EventListener, EventListener)

Creates an event multicaster instance which chains listener-a with listener-b.

actionPerformed(ActionEvent)

Handles the actionPerformed event by invoking the actionPerformed methods on listener-a and listener-b.

add(ActionListener, ActionListener)

Adds action-listener-a with action-listener-b and returns the resulting multicast listener.

add(AdjustmentListener, AdjustmentListener)

Adds adjustment-listener-a with adjustment-listener-b and returns the resulting multicast listener.

add(ComponentListener, ComponentListener)

Adds component-listener-a with component-listener-b and returns the resulting multicast listener.

add(ContainerListener, ContainerListener)

Adds container-listener-a with container-listener-b and returns the resulting multicast listener.

add(FocusListener, FocusListener)

Adds focus-listener-a with focus-listener-b and returns the resulting multicast listener.

add(ItemListener, ItemListener)

Adds item-listener-a with item-listener-b and returns the resulting multicast listener.

add(KeyListener, KeyListener)

Adds key-listener-a with key-listener-b and returns the resulting multicast listener.

add(MouseListener, MouseListener)

Adds mouse-listener-a with mouse-listener-b and returns the resulting multicast listener.

add(MouseMotionListener, MouseMotionListener)

Adds mouse-motion-listener-a with mouse-motion-listener-b and returns the resulting multicast listener.

add(TextListener, TextListener)

add(WindowListener, WindowListener)

Adds window-listener-a with window-listener-b and returns the resulting multicast listener.

addInternal(EventListener, EventListener)

Returns the resulting multicast listener from adding listener-a and listener-b together.

adjustmentValueChanged(AdjustmentEvent)

Handles the adjustmentValueChanged event by invoking the adjustmentValueChanged methods on listener-a and listener-b.

componentAdded(ContainerEvent)

Handles the componentAdded container event by invoking the componentAdded methods on listener-a and listener-b.

componentHidden(ComponentEvent)

Handles the componentHidden event by invoking the componentHidden methods on listener-a and listener-b.

componentMoved(ComponentEvent)

Handles the componentMoved event by invoking the componentMoved methods on listener-a and listener-b.

componentRemoved(ContainerEvent)

Handles the componentRemoved container event by invoking the componentRemoved methods on listener-a and listener-b.

componentResized(ComponentEvent)

Handles the componentResized event by invoking the componentResized methods on listener-a and listener-b.

componentShown(ComponentEvent)

Handles the componentShown event by invoking the componentShown methods on listener-a and listener-b.

focusGained(FocusEvent)

Handles the focusGained event by invoking the focusGained methods on listener-a and listener-b.

focusLost(FocusEvent)

Handles the focusLost event by invoking the focusLost methods on listener-a and listener-b.

itemStateChanged(ItemEvent)

Handles the itemStateChanged event by invoking the itemStateChanged methods on listener-a and listener-b.

keyPressed(KeyEvent)

Handles the keyPressed event by invoking the keyPressed methods on listener-a and listener-b.

keyReleased(KeyEvent)

Handles the keyReleased event by invoking the keyReleased methods on listener-a and listener-b.

keyTyped(KeyEvent)

Handles the keyTyped event by invoking the keyTyped methods on listener-a and listener-b.

mouseClicked(MouseEvent)

Handles the mouseClicked event by invoking the mouseClicked methods on listener-a and listener-b.

mouseDragged(MouseEvent)

Handles the mouseDragged event by invoking the mouseDragged methods on listener-a and listener-b.

mouseEntered(MouseEvent)

Handles the mouseEntered event by invoking the mouseEntered methods on listener-a and listener-b.

mouseExited(MouseEvent)

Handles the mouseExited event by invoking the mouseExited methods on listener-a and listener-b.

mouseMoved(MouseEvent)

Handles the mouseMoved event by invoking the mouseMoved methods on listener-a and listener-b.

mousePressed(MouseEvent)

Handles the mousePressed event by invoking the mousePressed methods on listener-a and listener-b.

mouseReleased(MouseEvent)

Handles the mouseReleased event by invoking the mouseReleased methods on listener-a and listener-b.

remove(ActionListener, ActionListener)

Removes the old action-listener from action-listener-l and returns the resulting multicast listener.

remove(AdjustmentListener, AdjustmentListener)

Removes the old adjustment-listener from adjustment-listener-l and returns the resulting multicast listener.

remove(ComponentListener, ComponentListener)

Removes the old component-listener from component-listener-l and returns the resulting multicast listener.

remove(ContainerListener, ContainerListener)

Removes the old container-listener from container-listener-l and returns the resulting multicast listener.

remove(EventListener)

Removes a listener from this multicaster and returns the resulting multicast listener.

remove(FocusListener, FocusListener)

Removes the old focus-listener from focus-listener-l and returns the resulting multicast listener.

remove(ItemListener, ItemListener)

Removes the old item-listener from item-listener-l and returns the resulting multicast listener.

remove(KeyListener, KeyListener)

Removes the old key-listener from key-listener-l and returns the resulting multicast listener.

remove(MouseListener, MouseListener)

Removes the old mouse-listener from mouse-listener-l and returns the resulting multicast listener.

remove(MouseMotionListener, MouseMotionListener)

Removes the old mouse-motion-listener from mouse-motion-listener-l and returns the resulting multicast listener.

remove(TextListener, TextListener)

remove(WindowListener, WindowListener)

Removes the old window-listener from window-listener-l and returns the resulting multicast listener.

removeInternal(EventListener, EventListener)

Returns the resulting multicast listener after removing the old listener from listener-l.

save(ObjectOutputStream, String, EventListener)

saveInternal(ObjectOutputStream, String)

textValueChanged(TextEvent)

windowActivated(WindowEvent)

Handles the windowActivated event by invoking the windowActivated methods on listener-a and listener-b.

windowClosed(WindowEvent)

Handles the windowClosed event by invoking the windowClosed methods on listener-a and listener-b.

windowClosing(WindowEvent)

Handles the windowClosing event by invoking the windowClosing methods on listener-a and listener-b.

windowDeactivated(WindowEvent)

Handles the windowDeactivated event by invoking the windowDeactivated methods on listener-a and listener-b.

windowDeiconified(WindowEvent)

Handles the windowDeiconfied event by invoking the windowDeiconified methods on listener-a and listener-b.

windowIconified(WindowEvent)

Handles the windowIconified event by invoking the windowIconified methods on listener-a and listener-b.

windowOpened(WindowEvent)

Handles the windowOpened event by invoking the windowOpened methods on listener-a and listener-b.

 protected final EventListener a

 protected final EventListener b

 protected AWTEventMulticaster(EventListener a,
                               EventListener b)

Creates an event multicaster instance which chains listener-a with listener-b.

Parameters:

a - listener-a

b - listener-b

 protected EventListener remove(EventListener oldl)

Removes a listener from this multicaster and returns the resulting multicast listener.

Parameters:

oldl - the listener to be removed

 public void componentResized(ComponentEvent e)

Handles the componentResized event by invoking the componentResized methods on listener-a and listener-b.

Parameters:

e - the component event

 public void componentMoved(ComponentEvent e)

Handles the componentMoved event by invoking the componentMoved methods on listener-a and listener-b.

Parameters:

e - the component event

 public void componentShown(ComponentEvent e)

Handles the componentShown event by invoking the componentShown methods on listener-a and listener-b.

Parameters:

e - the component event

 public void componentHidden(ComponentEvent e)

Handles the componentHidden event by invoking the componentHidden methods on listener-a and listener-b.

Parameters:

e - the component event

 public void componentAdded(ContainerEvent e)

Handles the componentAdded container event by invoking the componentAdded methods on listener-a and listener-b.

Parameters:

e - the component event

 public void componentRemoved(ContainerEvent e)

Handles the componentRemoved container event by invoking the componentRemoved methods on listener-a and listener-b.

Parameters:

e - the component event

 public void focusGained(FocusEvent e)

Handles the focusGained event by invoking the focusGained methods on listener-a and listener-b.

Parameters:

e - the focus event

 public void focusLost(FocusEvent e)

Handles the focusLost event by invoking the focusLost methods on listener-a and listener-b.

Parameters:

e - the focus event

 public void keyTyped(KeyEvent e)

Handles the keyTyped event by invoking the keyTyped methods on listener-a and listener-b.

Parameters:

e - the key event

 public void keyPressed(KeyEvent e)

Handles the keyPressed event by invoking the keyPressed methods on listener-a and listener-b.

Parameters:

e - the key event

 public void keyReleased(KeyEvent e)

Handles the keyReleased event by invoking the keyReleased methods on listener-a and listener-b.

Parameters:

e - the key event

 public void mouseClicked(MouseEvent e)

Handles the mouseClicked event by invoking the mouseClicked methods on listener-a and listener-b.

Parameters:

e - the mouse event

 public void mousePressed(MouseEvent e)

Handles the mousePressed event by invoking the mousePressed methods on listener-a and listener-b.

Parameters:

e - the mouse event

 public void mouseReleased(MouseEvent e)

Handles the mouseReleased event by invoking the mouseReleased methods on listener-a and listener-b.

Parameters:

e - the mouse event

 public void mouseEntered(MouseEvent e)

Handles the mouseEntered event by invoking the mouseEntered methods on listener-a and listener-b.

Parameters:

e - the mouse event

 public void mouseExited(MouseEvent e)

Handles the mouseExited event by invoking the mouseExited methods on listener-a and listener-b.

Parameters:

e - the mouse event

 public void mouseDragged(MouseEvent e)

Handles the mouseDragged event by invoking the mouseDragged methods on listener-a and listener-b.

Parameters:

e - the mouse event

 public void mouseMoved(MouseEvent e)

Handles the mouseMoved event by invoking the mouseMoved methods on listener-a and listener-b.

Parameters:

e - the mouse event

 public void windowOpened(WindowEvent e)

Handles the windowOpened event by invoking the windowOpened methods on listener-a and listener-b.

Parameters:

e - the window event

 public void windowClosing(WindowEvent e)

Handles the windowClosing event by invoking the windowClosing methods on listener-a and listener-b.

Parameters:

e - the window event

 public void windowClosed(WindowEvent e)

Handles the windowClosed event by invoking the windowClosed methods on listener-a and listener-b.

Parameters:

e - the window event

 public void windowIconified(WindowEvent e)

Handles the windowIconified event by invoking the windowIconified methods on listener-a and listener-b.

Parameters:

e - the window event

 public void windowDeiconified(WindowEvent e)

Handles the windowDeiconfied event by invoking the windowDeiconified methods on listener-a and listener-b.

Parameters:

e - the window event

 public void windowActivated(WindowEvent e)

Handles the windowActivated event by invoking the windowActivated methods on listener-a and listener-b.

Parameters:

e - the window event

 public void windowDeactivated(WindowEvent e)

Handles the windowDeactivated event by invoking the windowDeactivated methods on listener-a and listener-b.

Parameters:

e - the window event

 public void actionPerformed(ActionEvent e)

Handles the actionPerformed event by invoking the actionPerformed methods on listener-a and listener-b.

Parameters:

e - the action event

 public void itemStateChanged(ItemEvent e)

Handles the itemStateChanged event by invoking the itemStateChanged methods on listener-a and listener-b.

Parameters:

e - the item event

 public void adjustmentValueChanged(AdjustmentEvent e)

Handles the adjustmentValueChanged event by invoking the adjustmentValueChanged methods on listener-a and listener-b.

Parameters:

e - the adjustment event

 public void textValueChanged(TextEvent e)

 public static ComponentListener add(ComponentListener a,
                                     ComponentListener b)

Adds component-listener-a with component-listener-b and returns the resulting multicast listener.

Parameters:

a - component-listener-a

b - component-listener-b

 public static ContainerListener add(ContainerListener a,
                                     ContainerListener b)

Adds container-listener-a with container-listener-b and returns the resulting multicast listener.

Parameters:

a - container-listener-a

b - container-listener-b

 public static FocusListener add(FocusListener a,
                                 FocusListener b)

Adds focus-listener-a with focus-listener-b and returns the resulting multicast listener.

Parameters:

a - focus-listener-a

b - focus-listener-b

 public static KeyListener add(KeyListener a,
                               KeyListener b)

Adds key-listener-a with key-listener-b and returns the resulting multicast listener.

Parameters:

a - key-listener-a

b - key-listener-b

 public static MouseListener add(MouseListener a,
                                 MouseListener b)

Adds mouse-listener-a with mouse-listener-b and returns the resulting multicast listener.

Parameters:

a - mouse-listener-a

b - mouse-listener-b

 public static MouseMotionListener add(MouseMotionListener a,
                                       MouseMotionListener b)

Adds mouse-motion-listener-a with mouse-motion-listener-b and returns the resulting multicast listener.

Parameters:

a - mouse-motion-listener-a

b - mouse-motion-listener-b

 public static WindowListener add(WindowListener a,
                                  WindowListener b)

Adds window-listener-a with window-listener-b and returns the resulting multicast listener.

Parameters:

a - window-listener-a

b - window-listener-b

 public static ActionListener add(ActionListener a,
                                  ActionListener b)

Adds action-listener-a with action-listener-b and returns the resulting multicast listener.

Parameters:

a - action-listener-a

b - action-listener-b

 public static ItemListener add(ItemListener a,
                                ItemListener b)

Adds item-listener-a with item-listener-b and returns the resulting multicast listener.

Parameters:

a - item-listener-a

b - item-listener-b

 public static AdjustmentListener add(AdjustmentListener a,
                                      AdjustmentListener b)

Adds adjustment-listener-a with adjustment-listener-b and returns the resulting multicast listener.

Parameters:

a - adjustment-listener-a

b - adjustment-listener-b

 public static TextListener add(TextListener a,
                                TextListener b)

 public static ComponentListener remove(ComponentListener l,
                                        ComponentListener oldl)

Removes the old component-listener from component-listener-l and returns the resulting multicast listener.

Parameters:

l - component-listener-l

oldl - the component-listener being removed

 public static ContainerListener remove(ContainerListener l,
                                        ContainerListener oldl)

Removes the old container-listener from container-listener-l and returns the resulting multicast listener.

Parameters:

l - container-listener-l

oldl - the container-listener being removed

 public static FocusListener remove(FocusListener l,
                                    FocusListener oldl)

Removes the old focus-listener from focus-listener-l and returns the resulting multicast listener.

Parameters:

l - focus-listener-l

oldl - the focus-listener being removed

 public static KeyListener remove(KeyListener l,
                                  KeyListener oldl)

Removes the old key-listener from key-listener-l and returns the resulting multicast listener.

Parameters:

l - key-listener-l

oldl - the key-listener being removed

 public static MouseListener remove(MouseListener l,
                                    MouseListener oldl)

Removes the old mouse-listener from mouse-listener-l and returns the resulting multicast listener.

Parameters:

l - mouse-listener-l

oldl - the mouse-listener being removed

 public static MouseMotionListener remove(MouseMotionListener l,
                                          MouseMotionListener oldl)

Removes the old mouse-motion-listener from mouse-motion-listener-l and returns the resulting multicast listener.

Parameters:

l - mouse-motion-listener-l

oldl - the mouse-motion-listener being removed

 public static WindowListener remove(WindowListener l,
                                     WindowListener oldl)

Removes the old window-listener from window-listener-l and returns the resulting multicast listener.

Parameters:

l - window-listener-l

oldl - the window-listener being removed

 public static ActionListener remove(ActionListener l,
                                     ActionListener oldl)

Removes the old action-listener from action-listener-l and returns the resulting multicast listener.

Parameters:

l - action-listener-l

oldl - the action-listener being removed

 public static ItemListener remove(ItemListener l,
                                   ItemListener oldl)

Removes the old item-listener from item-listener-l and returns the resulting multicast listener.

Parameters:

l - item-listener-l

oldl - the item-listener being removed

 public static AdjustmentListener remove(AdjustmentListener l,
                                         AdjustmentListener oldl)

Removes the old adjustment-listener from adjustment-listener-l and returns the resulting multicast listener.

Parameters:

l - adjustment-listener-l

oldl - the adjustment-listener being removed

 public static TextListener remove(TextListener l,
                                   TextListener oldl)

 protected static EventListener addInternal(EventListener a,
                                            EventListener b)

Returns the resulting multicast listener from adding listener-a and listener-b together. If listener-a is null, it returns listener-b; If listener-b is null, it returns listener-a If neither are null, then it creates and returns a new AWTEventMulticaster instance which chains a with b.

Parameters:

a - event listener-a

b - event listener-b

 protected static EventListener removeInternal(EventListener l,
                                               EventListener oldl)

Returns the resulting multicast listener after removing the old listener from listener-l. If listener-l equals the old listener OR listener-l is null, returns null. Else if listener-l is an instance of AWTEventMulticaster, then it removes the old listener from it. Else, returns listener l.

Parameters:

l - the listener being removed from

oldl - the listener being removed

 protected void saveInternal(ObjectOutputStream s,
                             String k) throws IOException

 protected static void save(ObjectOutputStream s,
                            String k,
                            EventListener l) throws IOException

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