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package javax.faces.view;
import java.util.List;
import javax.faces.component.UIComponent;
/**
* Within the declaration of a
* composite component, an AttachedObjectTarget
* allows the composite component author to expose the
* semantics of an inner component to the page author without
* exposing the rendering or implementation details of the inner
* component. See {@link
* ViewDeclarationLanguage#getComponentMetadata} for the context in
* which implementations of this interface are used.
*
* The implementation must ensure that
* this instance is thread safe and may be shared among different component
* trees.
*
* Subinterfaces are provided for the common behavioral interfaces:
* {@link javax.faces.component.behavior.Behavior}, {@link
* javax.faces.component.ValueHolder}, {@link
* javax.faces.component.EditableValueHolder} and {@link
* javax.faces.component.ActionSource2}. The default VDL implementation
* must provide a corresponding Facelets tag handler for each of the
* subinterfaces of this interface.
*
*
* @since 2.0
*/
public interface AttachedObjectTarget {
/**
* The key in the value set of the
* composite component BeanDescriptor, the
* value for which is a
* List<AttachedObjectTarget>.
*/
public static final String ATTACHED_OBJECT_TARGETS_KEY =
"javax.faces.view.AttachedObjectTargets";
/**
* Returns the
* List<UIComponent> that this
* AttachedObjectTarget exposes. Each attached
* object exposed by the composite component author
* may point at multiple UIComponent instances within
* the composite component. This method is used by the {@link
* javax.faces.view.ViewDeclarationLanguage#retargetAttachedObjects}
* method to take the appropriate action on the attached object.
*
*/
public List getTargets(UIComponent topLevelComponent);
/**
* Returns the name by which this
* attached object target is exposed to the page
* author.
*
*/
public String getName();
}