Module java.desktop
Package java.awt

Class ContainerOrderFocusTraversalPolicy

java.lang.Object
java.awt.FocusTraversalPolicy
java.awt.ContainerOrderFocusTraversalPolicy
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
DefaultFocusTraversalPolicy

public class ContainerOrderFocusTraversalPolicy extends FocusTraversalPolicy implements Serializable
A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container. From a particular focus cycle root, the policy makes a pre-order traversal of the Component hierarchy, and traverses a Container's children according to the ordering of the array returned by Container.getComponents(). Portions of the hierarchy that are not visible and displayable will not be searched.

By default, ContainerOrderFocusTraversalPolicy implicitly transfers focus down-cycle. That is, during normal forward focus traversal, the Component traversed after a focus cycle root will be the focus-cycle-root's default Component to focus. This behavior can be disabled using the setImplicitDownCycleTraversal method.

By default, methods of this class will return a Component only if it is visible, displayable, enabled, and focusable. Subclasses can modify this behavior by overriding the accept method.

This policy takes into account focus traversal policy providers. When searching for first/last/next/previous Component, if a focus traversal policy provider is encountered, its focus traversal policy is used to perform the search operation.

Since:
1.4
See Also: