ComponentAdapter (Java 2 Platform SE 5.0) (original) (raw)

java.awt.event

Class ComponentAdapter

java.lang.Object extended by java.awt.event.ComponentAdapter

All Implemented Interfaces:

ComponentListener, EventListener

Direct Known Subclasses:

BasicSliderUI.ComponentHandler, BasicTreeUI.ComponentHandler, JViewport.ViewListener

public abstract class ComponentAdapter

extends Object

implements ComponentListener

An abstract adapter class for receiving component events. The methods in this class are empty. This class exists as convenience for creating listener objects.

Extend this class to create a ComponentEvent listener and override the methods for the events of interest. (If you implement the ComponentListener interface, you have to define all of the methods in it. This abstract class defines null methods for them all, so you can only have to define methods for events you care about.)

Create a listener object using your class and then register it with a component using the component's addComponentListener method. When the component's size, location, or visibility changes, the relevant method in the listener object is invoked, and the ComponentEvent is passed to it.

Since:

1.1

Constructor Summary
ComponentAdapter()

Method Summary
void	componentHidden(ComponentEvent e) Invoked when the component has been made invisible.
void	componentMoved(ComponentEvent e) Invoked when the component's position changes.
void	componentResized(ComponentEvent e) Invoked when the component's size changes.
void	componentShown(ComponentEvent e) Invoked when the component has been made visible.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, [wait](../../../java/lang/Object.html#wait%28long, int%29)

Constructor Detail

ComponentAdapter

public ComponentAdapter()

Method Detail

componentResized

public void componentResized(ComponentEvent e)

Invoked when the component's size changes.

Specified by:

[componentResized](../../../java/awt/event/ComponentListener.html#componentResized%28java.awt.event.ComponentEvent%29) in interface [ComponentListener](../../../java/awt/event/ComponentListener.html "interface in java.awt.event")

componentMoved

public void componentMoved(ComponentEvent e)

Invoked when the component's position changes.

Specified by:

[componentMoved](../../../java/awt/event/ComponentListener.html#componentMoved%28java.awt.event.ComponentEvent%29) in interface [ComponentListener](../../../java/awt/event/ComponentListener.html "interface in java.awt.event")

componentShown

public void componentShown(ComponentEvent e)

Invoked when the component has been made visible.

Specified by:

[componentShown](../../../java/awt/event/ComponentListener.html#componentShown%28java.awt.event.ComponentEvent%29) in interface [ComponentListener](../../../java/awt/event/ComponentListener.html "interface in java.awt.event")

componentHidden

public void componentHidden(ComponentEvent e)

Invoked when the component has been made invisible.

Specified by:

[componentHidden](../../../java/awt/event/ComponentListener.html#componentHidden%28java.awt.event.ComponentEvent%29) in interface [ComponentListener](../../../java/awt/event/ComponentListener.html "interface in java.awt.event")

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.