ParameterMap</code> and return
 <code>true</code> if its size is greater than 0.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../javax/faces/render/ResponseStateManager.html#isPostback-javax.faces.context.FacesContext-">isPostback</a></code>&nbsp;in class&nbsp;<code><a href="../../../../javax/faces/render/ResponseStateManager.html" title="class in javax.faces.render">ResponseStateManager</a></code></dd>
<dt><span class="paramLabel">Parameters:</spa