AWTEventMulticaster (GNU libgcj 4.8.0 Documentation)

java.lang.Object
- java.awt.AWTEventMulticaster

All Implemented Interfaces:

ActionListener, AdjustmentListener, ComponentListener, ContainerListener, FocusListener, HierarchyBoundsListener, HierarchyListener, InputMethodListener, ItemListener, KeyListener, MouseListener, MouseMotionListener, MouseWheelListener, TextListener, WindowFocusListener, WindowListener, WindowStateListener, EventListener
```
public class AWTEventMulticaster
extends Object
implements ComponentListener, ContainerListener, FocusListener, KeyListener, MouseListener, MouseMotionListener, WindowListener, WindowFocusListener, WindowStateListener, ActionListener, ItemListener, AdjustmentListener, TextListener, InputMethodListener, HierarchyListener, HierarchyBoundsListener, MouseWheelListener
```
This class is used to implement a chain of event handlers. Dispatching using this class is thread safe. Here is a quick example of how to add and delete listeners using this class. For this example, we will assume are firing AdjustmentEvent's. However, this same approach is useful for all events in the java.awt.event package, and more if this class is subclassed.
AdjustmentListener al; public void addAdjustmentListener(AdjustmentListener listener) { al = AWTEventMulticaster.add(al, listener); } public void removeAdjustmentListener(AdjustmentListener listener) { al = AWTEventMulticaster.remove(al, listener); }
When it come time to process an event, simply call al, assuming it is not null, and all listeners in the chain will be fired.
The first time add is called it is passed null and listener as its arguments. This starts building the chain. This class returns listener which becomes the new al. The next time, add is called with al and listener and the new listener is then chained to the old.

Since:

1.1

Field Summary

Fields
Modifier and Type Field and Description

protected EventListener a
A variable in the event chain.

protected EventListener b
A variable in the event chain.

Fields
Modifier and Type	Field and Description
`protected EventListener`	`a` A variable in the event chain.
`protected EventListener`	`b` A variable in the event chain.

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`AWTEventMulticaster(EventListener a, EventListener b)` Initializes a new instance of `AWTEventMulticaster` with the specified event listener parameters.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`actionPerformed(ActionEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`static ActionListener`	`add(ActionListener a, ActionListener b)` Chain `ActionListener` a and b.
`static AdjustmentListener`	`add(AdjustmentListener a, AdjustmentListener b)` Chain `AdjustmentListener` a and b.
`static ComponentListener`	`add(ComponentListener a, ComponentListener b)` Chain `ComponentListener` a and b.
`static ContainerListener`	`add(ContainerListener a, ContainerListener b)` Chain `ContainerListener` a and b.
`static FocusListener`	`add(FocusListener a, FocusListener b)` Chain `FocusListener` a and b.
`static HierarchyBoundsListener`	`add(HierarchyBoundsListener a, HierarchyBoundsListener b)` Chain `HierarchyBoundsListener` a and b.
`static HierarchyListener`	`add(HierarchyListener a, HierarchyListener b)` Chain `HierarchyListener` a and b.
`static InputMethodListener`	`add(InputMethodListener a, InputMethodListener b)` Chain `InputMethodListener` a and b.
`static ItemListener`	`add(ItemListener a, ItemListener b)` Chain `ItemListener` a and b.
`static KeyListener`	`add(KeyListener a, KeyListener b)` Chain `KeyListener` a and b.
`static MouseListener`	`add(MouseListener a, MouseListener b)` Chain `MouseListener` a and b.
`static MouseMotionListener`	`add(MouseMotionListener a, MouseMotionListener b)` Chain `MouseMotionListener` a and b.
`static MouseWheelListener`	`add(MouseWheelListener a, MouseWheelListener b)` Chain `MouseWheelListener` a and b.
`static TextListener`	`add(TextListener a, TextListener b)` Chain `AdjustmentListener` a and b.
`static WindowFocusListener`	`add(WindowFocusListener a, WindowFocusListener b)` Chain `WindowFocusListener` a and b.
`static WindowListener`	`add(WindowListener a, WindowListener b)` Chain `WindowListener` a and b.
`static WindowStateListener`	`add(WindowStateListener a, WindowStateListener b)` Chain `WindowStateListener` a and b.
`protected static EventListener`	`addInternal(EventListener a, EventListener b)` Chain `EventListener` a and b.
`void`	`adjustmentValueChanged(AdjustmentEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`ancestorMoved(HierarchyEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`ancestorResized(HierarchyEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`caretPositionChanged(InputMethodEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`componentAdded(ContainerEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`componentHidden(ComponentEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`componentMoved(ComponentEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`componentRemoved(ContainerEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`componentResized(ComponentEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`componentShown(ComponentEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`focusGained(FocusEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`focusLost(FocusEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`static <T extends EventListener> T[]`	`getListeners(EventListener l, Class<T> type)` Returns an array of all chained listeners of the specified type in the given chain.
`void`	`hierarchyChanged(HierarchyEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`inputMethodTextChanged(InputMethodEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`itemStateChanged(ItemEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`keyPressed(KeyEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`keyReleased(KeyEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`keyTyped(KeyEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`mouseClicked(MouseEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`mouseDragged(MouseEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`mouseEntered(MouseEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`mouseExited(MouseEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`mouseMoved(MouseEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`mousePressed(MouseEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`mouseReleased(MouseEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`mouseWheelMoved(MouseWheelEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`static ActionListener`	`remove(ActionListener l, ActionListener oldl)` Removes the listener `oldl` from the listener `l`.
`static AdjustmentListener`	`remove(AdjustmentListener l, AdjustmentListener oldl)` Removes the listener `oldl` from the listener `l`.
`static ComponentListener`	`remove(ComponentListener l, ComponentListener oldl)` Removes the listener `oldl` from the listener `l`.
`static ContainerListener`	`remove(ContainerListener l, ContainerListener oldl)` Removes the listener `oldl` from the listener `l`.
`protected EventListener`	`remove(EventListener oldl)` Removes one instance of the specified listener from this multicaster chain.
`static FocusListener`	`remove(FocusListener l, FocusListener oldl)` Removes the listener `oldl` from the listener `l`.
`static HierarchyBoundsListener`	`remove(HierarchyBoundsListener l, HierarchyBoundsListener oldl)` Removes the listener `oldl` from the listener `l`.
`static HierarchyListener`	`remove(HierarchyListener l, HierarchyListener oldl)` Removes the listener `oldl` from the listener `l`.
`static InputMethodListener`	`remove(InputMethodListener l, InputMethodListener oldl)` Removes the listener `oldl` from the listener `l`.
`static ItemListener`	`remove(ItemListener l, ItemListener oldl)` Removes the listener `oldl` from the listener `l`.
`static KeyListener`	`remove(KeyListener l, KeyListener oldl)` Removes the listener `oldl` from the listener `l`.
`static MouseListener`	`remove(MouseListener l, MouseListener oldl)` Removes the listener `oldl` from the listener `l`.
`static MouseMotionListener`	`remove(MouseMotionListener l, MouseMotionListener oldl)` Removes the listener `oldl` from the listener `l`.
`static MouseWheelListener`	`remove(MouseWheelListener l, MouseWheelListener oldl)` Removes the listener `oldl` from the listener `l`.
`static TextListener`	`remove(TextListener l, TextListener oldl)` Removes the listener `oldl` from the listener `l`.
`static WindowFocusListener`	`remove(WindowFocusListener l, WindowFocusListener oldl)` Removes the listener `oldl` from the listener `l`.
`static WindowListener`	`remove(WindowListener l, WindowListener oldl)` Removes the listener `oldl` from the listener `l`.
`static WindowStateListener`	`remove(WindowStateListener l, WindowStateListener oldl)` Removes the listener `oldl` from the listener `l`.
`protected static EventListener`	`removeInternal(EventListener l, EventListener oldl)` Removes the listener `oldl` from the listener `l`.
`protected static void`	`save(ObjectOutputStream s, String k, EventListener l)` Saves a Serializable listener chain to a serialization stream.
`protected void`	`saveInternal(ObjectOutputStream s, String k)` Saves all Serializable listeners to a serialization stream.
`void`	`textValueChanged(TextEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`windowActivated(WindowEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`windowClosed(WindowEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`windowClosing(WindowEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`windowDeactivated(WindowEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`windowDeiconified(WindowEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`windowGainedFocus(WindowEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`windowIconified(WindowEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`windowLostFocus(WindowEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`windowOpened(WindowEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.
`void`	`windowStateChanged(WindowEvent e)` Handles this event by dispatching it to the "a" and "b" listener instances.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - a
```
protected final EventListener a
```
    A variable in the event chain.
  - b
```
protected final EventListener b
```
    A variable in the event chain.
- Constructor Detail
  - AWTEventMulticaster
```
protected AWTEventMulticaster(EventListener a,
                   EventListener b)
```
    Initializes a new instance of AWTEventMulticaster with the specified event listener parameters. The parameters should not be null, although it is not required to enforce this with a NullPointerException.
    
    Parameters:
    a - the "a" listener object
    b - the "b" listener object
- Method Detail
  - remove
```
protected EventListener remove(EventListener oldl)
```
    Removes one instance of the specified listener from this multicaster chain. This descends recursively if either child is a multicaster, and returns a multicaster chain with the old listener removed.
    
    Parameters:
    oldl - the object to remove from this multicaster
    
    Returns:
    the resulting multicaster with the specified listener removed
  - componentResized
```
public void componentResized(ComponentEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    componentResized in interface ComponentListener
    
    Parameters:
    e - the event to handle
  - componentMoved
```
public void componentMoved(ComponentEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    componentMoved in interface ComponentListener
    
    Parameters:
    e - the event to handle
  - componentShown
```
public void componentShown(ComponentEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    componentShown in interface ComponentListener
    
    Parameters:
    e - the event to handle
  - componentHidden
```
public void componentHidden(ComponentEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    componentHidden in interface ComponentListener
    
    Parameters:
    e - the event to handle
  - componentAdded
```
public void componentAdded(ContainerEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    componentAdded in interface ContainerListener
    
    Parameters:
    e - the event to handle
  - componentRemoved
```
public void componentRemoved(ContainerEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    componentRemoved in interface ContainerListener
    
    Parameters:
    e - the event to handle
  - focusGained
```
public void focusGained(FocusEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    focusGained in interface FocusListener
    
    Parameters:
    e - the event to handle
  - focusLost
```
public void focusLost(FocusEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    focusLost in interface FocusListener
    
    Parameters:
    e - the event to handle
  - keyTyped
```
public void keyTyped(KeyEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    keyTyped in interface KeyListener
    
    Parameters:
    e - the event to handle
  - keyPressed
```
public void keyPressed(KeyEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    keyPressed in interface KeyListener
    
    Parameters:
    e - the event to handle
  - keyReleased
```
public void keyReleased(KeyEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    keyReleased in interface KeyListener
    
    Parameters:
    e - the event to handle
  - mouseClicked
```
public void mouseClicked(MouseEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    mouseClicked in interface MouseListener
    
    Parameters:
    e - the event to handle
  - mousePressed
```
public void mousePressed(MouseEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    mousePressed in interface MouseListener
    
    Parameters:
    e - the event to handle
  - mouseReleased
```
public void mouseReleased(MouseEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    mouseReleased in interface MouseListener
    
    Parameters:
    e - the event to handle
  - mouseEntered
```
public void mouseEntered(MouseEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    mouseEntered in interface MouseListener
    
    Parameters:
    e - the event to handle
  - mouseExited
```
public void mouseExited(MouseEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    mouseExited in interface MouseListener
    
    Parameters:
    e - the event to handle
  - mouseDragged
```
public void mouseDragged(MouseEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    mouseDragged in interface MouseMotionListener
    
    Parameters:
    e - the event to handle
  - mouseMoved
```
public void mouseMoved(MouseEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    mouseMoved in interface MouseMotionListener
    
    Parameters:
    e - the event to handle
  - windowOpened
```
public void windowOpened(WindowEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    windowOpened in interface WindowListener
    
    Parameters:
    e - the event to handle
  - windowClosing
```
public void windowClosing(WindowEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    windowClosing in interface WindowListener
    
    Parameters:
    e - the event to handle
  - windowClosed
```
public void windowClosed(WindowEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    windowClosed in interface WindowListener
    
    Parameters:
    e - the event to handle
  - windowIconified
```
public void windowIconified(WindowEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    windowIconified in interface WindowListener
    
    Parameters:
    e - the event to handle
    See Also:
    Frame.setIconImage(Image)
  - windowDeiconified
```
public void windowDeiconified(WindowEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    windowDeiconified in interface WindowListener
    
    Parameters:
    e - the event to handle
  - windowActivated
```
public void windowActivated(WindowEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    windowActivated in interface WindowListener
    
    Parameters:
    e - the event to handle
  - windowDeactivated
```
public void windowDeactivated(WindowEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    windowDeactivated in interface WindowListener
    
    Parameters:
    e - the event to handle
  - windowStateChanged
```
public void windowStateChanged(WindowEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    windowStateChanged in interface WindowStateListener
    
    Parameters:
    e - the event to handle
    Since:
    
    1.4
  - windowGainedFocus
```
public void windowGainedFocus(WindowEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    windowGainedFocus in interface WindowFocusListener
    
    Parameters:
    e - the event to handle
    Since:
    
    1.4
  - windowLostFocus
```
public void windowLostFocus(WindowEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    windowLostFocus in interface WindowFocusListener
    
    Parameters:
    e - the event to handle
    Since:
    
    1.4
  - actionPerformed
```
public void actionPerformed(ActionEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    actionPerformed in interface ActionListener
    
    Parameters:
    e - the event to handle
  - itemStateChanged
```
public void itemStateChanged(ItemEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    itemStateChanged in interface ItemListener
    
    Parameters:
    e - the event to handle
  - adjustmentValueChanged
```
public void adjustmentValueChanged(AdjustmentEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    adjustmentValueChanged in interface AdjustmentListener
    
    Parameters:
    e - the event to handle
  - textValueChanged
```
public void textValueChanged(TextEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    textValueChanged in interface TextListener
    
    Parameters:
    e - the event to handle
  - inputMethodTextChanged
```
public void inputMethodTextChanged(InputMethodEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    inputMethodTextChanged in interface InputMethodListener
    
    Parameters:
    e - the event to handle
    Since:
    
    1.2
  - caretPositionChanged
```
public void caretPositionChanged(InputMethodEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    caretPositionChanged in interface InputMethodListener
    
    Parameters:
    e - the event to handle
    Since:
    
    1.2
  - hierarchyChanged
```
public void hierarchyChanged(HierarchyEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    hierarchyChanged in interface HierarchyListener
    
    Parameters:
    e - the event to handle
    Since:
    
    1.3
  - ancestorMoved
```
public void ancestorMoved(HierarchyEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    ancestorMoved in interface HierarchyBoundsListener
    
    Parameters:
    e - the event to handle
    Since:
    
    1.3
  - ancestorResized
```
public void ancestorResized(HierarchyEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    ancestorResized in interface HierarchyBoundsListener
    
    Parameters:
    e - the event to handle
    Since:
    
    1.3
  - mouseWheelMoved
```
public void mouseWheelMoved(MouseWheelEvent e)
```
    Handles this event by dispatching it to the "a" and "b" listener instances.
    
    Specified by:
    
    mouseWheelMoved in interface MouseWheelListener
    
    Parameters:
    e - the event to handle
    Since:
    
    1.4
  - add
```
public static ComponentListener add(ComponentListener a,
                    ComponentListener b)
```
    Chain ComponentListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static ContainerListener add(ContainerListener a,
                    ContainerListener b)
```
    Chain ContainerListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static FocusListener add(FocusListener a,
                FocusListener b)
```
    Chain FocusListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static KeyListener add(KeyListener a,
              KeyListener b)
```
    Chain KeyListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static MouseListener add(MouseListener a,
                MouseListener b)
```
    Chain MouseListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static MouseMotionListener add(MouseMotionListener a,
                      MouseMotionListener b)
```
    Chain MouseMotionListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static WindowListener add(WindowListener a,
                 WindowListener b)
```
    Chain WindowListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static WindowStateListener add(WindowStateListener a,
                      WindowStateListener b)
```
    Chain WindowStateListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
    Since:
    
    1.4
  - add
```
public static WindowFocusListener add(WindowFocusListener a,
                      WindowFocusListener b)
```
    Chain WindowFocusListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
    Since:
    
    1.4
  - add
```
public static ActionListener add(ActionListener a,
                 ActionListener b)
```
    Chain ActionListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static ItemListener add(ItemListener a,
               ItemListener b)
```
    Chain ItemListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static AdjustmentListener add(AdjustmentListener a,
                     AdjustmentListener b)
```
    Chain AdjustmentListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static TextListener add(TextListener a,
               TextListener b)
```
    Chain AdjustmentListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - add
```
public static InputMethodListener add(InputMethodListener a,
                      InputMethodListener b)
```
    Chain InputMethodListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
    Since:
    
    1.2
  - add
```
public static HierarchyListener add(HierarchyListener a,
                    HierarchyListener b)
```
    Chain HierarchyListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
    Since:
    
    1.3
  - add
```
public static HierarchyBoundsListener add(HierarchyBoundsListener a,
                          HierarchyBoundsListener b)
```
    Chain HierarchyBoundsListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
    Since:
    
    1.3
  - add
```
public static MouseWheelListener add(MouseWheelListener a,
                     MouseWheelListener b)
```
    Chain MouseWheelListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
    Since:
    
    1.4
  - remove
```
public static ComponentListener remove(ComponentListener l,
                       ComponentListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static ContainerListener remove(ContainerListener l,
                       ContainerListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static FocusListener remove(FocusListener l,
                   FocusListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static KeyListener remove(KeyListener l,
                 KeyListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static MouseListener remove(MouseListener l,
                   MouseListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static MouseMotionListener remove(MouseMotionListener l,
                         MouseMotionListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static WindowListener remove(WindowListener l,
                    WindowListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static WindowStateListener remove(WindowStateListener l,
                         WindowStateListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
    Since:
    
    1.4
  - remove
```
public static WindowFocusListener remove(WindowFocusListener l,
                         WindowFocusListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
    Since:
    
    1.4
  - remove
```
public static ActionListener remove(ActionListener l,
                    ActionListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static ItemListener remove(ItemListener l,
                  ItemListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static AdjustmentListener remove(AdjustmentListener l,
                        AdjustmentListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static TextListener remove(TextListener l,
                  TextListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - remove
```
public static InputMethodListener remove(InputMethodListener l,
                         InputMethodListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
    Since:
    
    1.2
  - remove
```
public static HierarchyListener remove(HierarchyListener l,
                       HierarchyListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
    Since:
    
    1.3
  - remove
```
public static HierarchyBoundsListener remove(HierarchyBoundsListener l,
                             HierarchyBoundsListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
    Since:
    
    1.3
  - remove
```
public static MouseWheelListener remove(MouseWheelListener l,
                        MouseWheelListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
    Since:
    
    1.4
  - addInternal
```
protected static EventListener addInternal(EventListener a,
                        EventListener b)
```
    Chain EventListener a and b.
    
    Parameters:
    a - the "a" listener, may be null
    b - the "b" listener, may be null
    
    Returns:
    latest entry in the chain
  - removeInternal
```
protected static EventListener removeInternal(EventListener l,
                           EventListener oldl)
```
    Removes the listener oldl from the listener l.
    
    Parameters:
    l - the listener chain to reduce
    oldl - the listener to remove
    
    Returns:
    the resulting listener chain
  - saveInternal
```
protected void saveInternal(ObjectOutputStream s,
                String k)
                     throws IOException
```
    Saves all Serializable listeners to a serialization stream.
    
    Parameters:
    s - the stream to save to
    k - a prefix stream put before each serializable listener
    
    Throws:
    
    IOException - if serialization fails
  - save
```
protected static void save(ObjectOutputStream s,
        String k,
        EventListener l)
                    throws IOException
```
    Saves a Serializable listener chain to a serialization stream.
    
    Parameters:
    s - the stream to save to
    k - a prefix stream put before each serializable listener
    l - the listener chain to save
    
    Throws:
    
    IOException - if serialization fails
  - getListeners
```
public static <T extends EventListener> T[] getListeners(EventListener l,
                                         Class<T> type)
```
    Returns an array of all chained listeners of the specified type in the given chain. A null listener returns an empty array, and a listener which is not an AWTEventMulticaster returns an array of one element. If no listeners in the chain are of the specified type, an empty array is returned.
    
    Parameters:
    l - the listener chain to convert to an array
    type - the type of listeners to collect
    
    Returns:
    an array of the listeners of that type in the chain
    
    Throws:
    
    ClassCastException - if type is not assignable from EventListener
    
    NullPointerException - if type is null
    
    IllegalArgumentException - if type is Void.TYPE
    Since:
    
    1.4

Class AWTEventMulticaster

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

a

b

Constructor Detail

AWTEventMulticaster

Method Detail

remove

componentResized

componentMoved

componentShown

componentHidden

componentAdded

componentRemoved

focusGained

focusLost

keyTyped

keyPressed

keyReleased

mouseClicked

mousePressed

mouseReleased

mouseEntered

mouseExited

mouseDragged

mouseMoved

windowOpened

windowClosing

windowClosed

windowIconified

windowDeiconified

windowActivated

windowDeactivated

windowStateChanged

windowGainedFocus

windowLostFocus

actionPerformed

itemStateChanged

adjustmentValueChanged

textValueChanged

inputMethodTextChanged

caretPositionChanged

hierarchyChanged

ancestorMoved

ancestorResized

mouseWheelMoved

add

add

add

add

add

add

add

add

add

add

add

add

add

add

add

add

add

remove

remove

remove

remove

remove

remove

remove

remove

remove

remove

remove

remove

remove