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package javax.faces.event;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
/**
*
* <p class="changed_added_2_0">When an instance of this event is passed
* to {@link SystemEventListener#processEvent} or {@link
* ComponentSystemEventListener#processEvent}, the listener
* implementation may assume that the <code>source</code> of this event
* instance is the {@link UIViewRoot} instance that is about to be
* rendered.</p>
* <div class="changed_added_2_0">
*
* <p>It is valid for a listener for this event to change the {@link
* UIViewRoot} in the current {@link javax.faces.context.FacesContext},
* but the listener must ensure that the new <code>UIViewRoot</code> was
* created with a call to {@link
* javax.faces.application.ViewHandler#createView}, and that the view is
* fully populated with the children to be traversed during render. The
* listener implementation may call {@link
* javax.faces.view.ViewDeclarationLanguage#buildView} to populate
* the <code>UIViewRoot</code>.</p>
*
* </div>
*
* @since 2.0
*/
public class PreRenderViewEvent extends ComponentSystemEvent {
// ------------------------------------------------------------ Constructors
private static final long serialVersionUID = -781238104491250220L;
/**
* <p class="changed_added_2_0">Instantiate a new
* <code>PreRenderViewEvent</code> that indicates the argument
* <code>root</code> is about to be rendered.</p>
* @param root the <code>UIViewRoot</code> that is about to be
* rendered.
* @throws IllegalArgumentException if the argument is <code>null</code>.
*/
public PreRenderViewEvent(UIViewRoot root) {
super(root);
}
/**
* <p class="changed_added_2_3">Instantiate a new
* <code>PreRenderViewEvent</code> that indicates the argument
* <code>root</code> is about to be rendered.</p>
*
* @param facesContext the Faces context.
* @param root the <code>UIViewRoot</code> that is about to be
* rendered.
* @throws IllegalArgumentException if the argument is <code>null</code>.
*/
public PreRenderViewEvent(FacesContext facesContext, UIViewRoot root) {
super(facesContext, root);
}
}