Chapter 19
java.awt Reference

AWTEvent

Name

AWTEvent

[Graphic: Figure from the text]

Description

The root class of all AWT events. Subclasses of this class are the replacement for java.awt.Event, which is only used for the Java 1.0.2 event model. In Java 1.1, event objects are passed from event source components to objects implementing a corresponding listener interface. Some event sources have a corresponding interface, too. For example, AdjustmentEvents are passed from Adjustable objects to AdjustmentListeners. Some event types do not have corresponding interfaces; for example, ActionEvents are passed from Buttons to ActionListeners, but there is no "Actionable" interface that Button implements.

Class Definition

public abstract class java.awt.AWTEvent
    extends java.util.EventObject {
  // Constants
  public final static long ACTION_EVENT_MASK;
  public final static long ADJUSTMENT_EVENT_MASK;
  public final static long COMPONENT_EVENT_MASK;
  public final static long CONTAINER_EVENT_MASK;
  public final static long FOCUS_EVENT_MASK;
  public final static long ITEM_EVENT_MASK;
  public final static long KEY_EVENT_MASK;
  public final static long MOUSE_EVENT_MASK;
  public final static long MOUSE_MOTION_EVENT_MASK;
  public final static long RESERVED_ID_MAX;
  public final static long TEXT_EVENT_MASK;
  public final static long WINDOW_EVENT_MASK;
  // Variables
  protected boolean consumed;
  protected int id;
  // Constructors
  public AWTEvent (Event event);
  public AWTEvent (Object source, int id);
  // Instance Methods
  public int getID();
  public String paramString();
  public String toString();
  // Protected Instance Methods
  protected void consume();
  protected boolean isConsumed();
}