java.awt.event
Class ContainerEvent

java.lang.Object
  |
  +--java.util.EventObject
        |
        +--java.awt.AWTEvent
              |
              +--java.awt.event.ComponentEvent
                    |
                    +--java.awt.event.ContainerEvent
All Implemented Interfaces:
Serializable

public class ContainerEvent
extends ComponentEvent

Safe:

See Also:
Serialized Form

Field Summary
(package private)  Component child
          The non-null component that is being added or removed from the Container.
static int COMPONENT_ADDED
          Enabled: This event indicates that a component was added to the container.
static int COMPONENT_REMOVED
          Enabled: This event indicates that a component was removed from the container.
static int CONTAINER_FIRST
          Enabled: The first number in the range of ids used for container events.
static int CONTAINER_LAST
          Enabled: The last number in the range of ids used for container events.
private static long serialVersionUID
           
 
Fields inherited from class java.awt.event.ComponentEvent
COMPONENT_FIRST, COMPONENT_HIDDEN, COMPONENT_LAST, COMPONENT_MOVED, COMPONENT_RESIZED, COMPONENT_SHOWN
 
Fields inherited from class java.awt.AWTEvent
ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, consumed, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, HIERARCHY_BOUNDS_EVENT_MASK, HIERARCHY_EVENT_MASK, id, INPUT_METHOD_EVENT_MASK, INVOCATION_EVENT_MASK, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, MOUSE_WHEEL_EVENT_MASK, PAINT_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK, WINDOW_FOCUS_EVENT_MASK, WINDOW_STATE_EVENT_MASK
 
Fields inherited from class java.util.EventObject
source
 
Constructor Summary
ContainerEvent(Component source, int id, Component child)
          Suppressed: Constructs a ContainerEvent object.
 
Method Summary
 Component getChild()
          Enabled: Returns the component that was affected by the event.
 Container getContainer()
          Enabled: Returns the originator of the event.
 String paramString()
          Suppressed: Returns a parameter string identifying this event.
 
Methods inherited from class java.awt.event.ComponentEvent
getComponent
 
Methods inherited from class java.awt.AWTEvent
consume, getID, isConsumed, setSource, toString
 
Methods inherited from class java.util.EventObject
getSource
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

CONTAINER_FIRST

public static final int CONTAINER_FIRST
Enabled: The first number in the range of ids used for container events.


CONTAINER_LAST

public static final int CONTAINER_LAST
Enabled: The last number in the range of ids used for container events.


COMPONENT_ADDED

public static final int COMPONENT_ADDED
Enabled: This event indicates that a component was added to the container.


COMPONENT_REMOVED

public static final int COMPONENT_REMOVED
Enabled: This event indicates that a component was removed from the container.


child

Component child
The non-null component that is being added or removed from the Container.

See Also:
getChild

serialVersionUID

private static final long serialVersionUID
Constructor Detail

ContainerEvent

public ContainerEvent(Component source,
                      int id,
                      Component child)
Suppressed: Constructs a ContainerEvent object.

Note that passing in an invalid id results in unspecified behavior.

Parameters:
source - the Component object (container) that originated the event
id - an integer indicating the type of event
child - the component that was added or removed
Method Detail

getContainer

public Container getContainer()
Enabled: Returns the originator of the event.

Returns:
the Container object that originated the event

getChild

public Component getChild()
Enabled: Returns the component that was affected by the event.

Returns:
the Component object that was added or removed

paramString

public String paramString()
Suppressed: Returns a parameter string identifying this event. This method is useful for event-logging and for debugging.

Overrides:
paramString in class ComponentEvent
Returns:
a string identifying the event and its attributes


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