ly Request Values</em> or <em>Invoke Application</em> phase of the request
 processing lifecycle, depending on the value of the <code>immediate</code> property.
 </p></div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="ActionSource.html#getActionExpression()">getActionExpression</a></code>&nbsp;in interface&nbsp;<code><a href="ActionSource.html" title="interface in jakarta.faces.component">ActionSource</a></code></dd>
<dt>Returns:</dt>
<dd>the action expression.</dd>
</dl>
</section>
</li>
<l