ode> property.
 </p>

 <p>
 Any method referenced by such an expression must be public, with a return type of <code>String</code>, and accept no
 parameters.
 </p></div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="ActionSource.html#setActionExpression(jakarta.el.MethodExpression)">setActionExpression</a></code>&nbsp;in interface&nbsp;<code><a href="ActionSource.html" title="interface in jakarta.faces.component">ActionSource</a></code></dd>
<dt>Parameters:</dt>
<dd><code>action</code> - The 