his event instance is the <a href="../component/UIViewRoot.html" title="class in jakarta.faces.component"><code>UIViewRoot</code></a> 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 <a href="../component/UIViewRoot.html" title="class in jakarta.faces.component"><code>UIViewRoot</code></a> in the current
 <a href="../context/FacesContext.html" title="class in jakarta.faces.context"><code>FacesContext</code></a>, but