Class ContainerAdapter

java.lang.Object
java.awt.event.ContainerAdapter
All Implemented Interfaces:
ContainerListener, EventListener
public abstract class ContainerAdapter extends Object implements ContainerListener
An abstract adapter class for receiving container events. The methods in this class are empty. This class exists as convenience for creating listener objects.

Extend this class to create a ContainerEvent listener and override the methods for the events of interest. (If you implement the ContainerListener 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 the extended class and then register it 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.

Since:
1.1
See Also:

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    ContainerAdapter()
    Constructs a ContainerAdapter.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    componentAdded(ContainerEvent e)
    Invoked when a component has been added to the container.
    void
    componentRemoved(ContainerEvent e)
    Invoked when a component has been removed from the container.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Creates and returns a copy of this object.
    boolean
    equals(Object obj)
    Indicates whether some other object is "equal to" this one.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    Finalization is deprecated and subject to removal in a future release.
    final Class<?>
    getClass()
    Returns the runtime class of this Object.
    int
    hashCode()
    Returns a hash code value for this object.
    final void
    notify()
    Wakes up a single thread that is waiting on this object's monitor.
    final void
    notifyAll()
    Wakes up all threads that are waiting on this object's monitor.
    String
    toString()
    Returns a string representation of the object.
    final void
    wait()
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
    final void
    wait(long timeoutMillis)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
    final void
    wait(long timeoutMillis, int nanos)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

  • Constructor Details

    • ContainerAdapter

      protected ContainerAdapter()
      Constructs a ContainerAdapter.

  • Method Details

    • componentAdded

      public void componentAdded(ContainerEvent e)
      Invoked when a component has been added to the container.
      Specified by:
      componentAdded in interface ContainerListener
      Parameters:
      e - the event to be processed

    • componentRemoved

      public void componentRemoved(ContainerEvent e)
      Invoked when a component has been removed from the container.
      Specified by:
      componentRemoved in interface ContainerListener
      Parameters:
      e - the event to be processed