java.awt.event
Interface ContainerListener

All Superinterfaces:
EventListener sample code for java.util.EventListener definition code for java.util.EventListener
All Known Implementing Classes:
AWTEventMulticaster sample code for java.awt.AWTEventMulticaster definition code for java.awt.AWTEventMulticaster , BasicToolBarUI.ToolBarContListener sample code for javax.swing.plaf.basic.BasicToolBarUI.ToolBarContListener definition code for javax.swing.plaf.basic.BasicToolBarUI.ToolBarContListener , Container.AccessibleAWTContainer.AccessibleContainerHandler sample code for java.awt.Container.AccessibleAWTContainer.AccessibleContainerHandler definition code for java.awt.Container.AccessibleAWTContainer.AccessibleContainerHandler , ContainerAdapter sample code for java.awt.event.ContainerAdapter definition code for java.awt.event.ContainerAdapter , JComponent.AccessibleJComponent.AccessibleContainerHandler sample code for javax.swing.JComponent.AccessibleJComponent.AccessibleContainerHandler definition code for javax.swing.JComponent.AccessibleJComponent.AccessibleContainerHandler , MetalToolBarUI.MetalContainerListener sample code for javax.swing.plaf.metal.MetalToolBarUI.MetalContainerListener definition code for javax.swing.plaf.metal.MetalToolBarUI.MetalContainerListener

public interface ContainerListener
extends EventListener sample code for java.util.EventListener definition code for java.util.EventListener

The listener interface for receiving container events. The class that is interested in processing a container event either implements this interface (and all the methods it contains) or extends the abstract ContainerAdapter class (overriding only the methods of interest). The listener object created from that class is then registered with a component using the component's addContainerListener method. When the container's contents change because a component has been added or removed, the relevant method in the listener object is invoked, and the ContainerEvent is passed to it.

Container events are provided for notification purposes ONLY; The AWT will automatically handle add and remove operations internally so the program works properly regardless of whether the program registers a ComponentListener or not.

Since:
1.1
See Also:
ContainerAdapter sample code for java.awt.event.ContainerAdapter definition code for java.awt.event.ContainerAdapter , ContainerEvent sample code for java.awt.event.ContainerEvent definition code for java.awt.event.ContainerEvent , Tutorial: Writing a Container Listener, Reference: The Java Class Libraries (update file)

Method Summary
 void componentAdded sample code for java.awt.event.ContainerListener.componentAdded(java.awt.event.ContainerEvent) definition code for java.awt.event.ContainerListener.componentAdded(java.awt.event.ContainerEvent) (ContainerEvent sample code for java.awt.event.ContainerEvent definition code for java.awt.event.ContainerEvent  e)
          Invoked when a component has been added to the container.
 void componentRemoved sample code for java.awt.event.ContainerListener.componentRemoved(java.awt.event.ContainerEvent) definition code for java.awt.event.ContainerListener.componentRemoved(java.awt.event.ContainerEvent) (ContainerEvent sample code for java.awt.event.ContainerEvent definition code for java.awt.event.ContainerEvent  e)
          Invoked when a component has been removed from the container.
 

Method Detail

componentAdded sample code for java.awt.event.ContainerListener.componentAdded(java.awt.event.ContainerEvent) definition code for java.awt.event.ContainerListener.componentAdded(java.awt.event.ContainerEvent)

void componentAdded(ContainerEvent sample code for java.awt.event.ContainerEvent definition code for java.awt.event.ContainerEvent  e)
Invoked when a component has been added to the container.


componentRemoved sample code for java.awt.event.ContainerListener.componentRemoved(java.awt.event.ContainerEvent) definition code for java.awt.event.ContainerListener.componentRemoved(java.awt.event.ContainerEvent)

void componentRemoved(ContainerEvent sample code for java.awt.event.ContainerEvent definition code for java.awt.event.ContainerEvent  e)
Invoked when a component has been removed from the container.