>
 <strong>UIParameter</strong> is a <a href="../../../javax/faces/component/UIComponent.html" title="class in javax.faces.component"><code>UIComponent</code></a> that represents an optionally named
 configuration parameter for a parent component.
 </p>

 <p>
 Parent components should retrieve the value of a parameter by calling <code>getValue()</code>. In
 this way, the parameter value can be set directly on the component (via <code>setValue()</code>),
 or retrieved indirectly via the value binding express