/code></a>, the implementation of this
 method must call through to <a href="../../../javax/faces/component/ActionSource2.html#getActionExpression--"><code>ActionSource2.getActionExpression()</code></a> and examine the result.
 If the result came from a previous call to <a href="../../../javax/faces/component/ActionSource.html#setAction-javax.faces.el.MethodBinding-"><code>ActionSource.setAction(javax.faces.el.MethodBinding)</code></a>, extract the
 <code>MethodBinding</code> from it and return it. Otherwis