Checkpoint 1.3 - Java

Recommendation

All custom components should extend a standard class as far down the JFC/Swing inheritance hierarchy as possible. All standard JComponent subclasses implement this interface and do everything necessary to be accessible.

The Accessible interface has only one method call: getAccessibleContext() and returns an instance of AccessibleContext. The returned information provides the information and functionality to enable accessibility, including:

• information about the component's role (button, checkbox, etc.)
• accessible name
• number of children, and more
• ability to generate accessibility events when a noteworthy event has occurred.

The following Java code example shows how the Accessible is implemented on a custom component:

import java.awt;
           import javax.accessibility;
           class MyButton implements Accessible extends Component {
              AccessibleContext getAccessibleContext() {
                  ...
              }
           }