r can be retrieved.  The following
        approaches should be supported:
        <ul>
        <li>Retrieve a specified attribute (possibly multi-valued)
            from an LDAP search expression,
            with a replacement placeholder for the DN of the user.
            [Current]</li>
        </ul></li>
    </ul>

    <h3>Lifecycle Functionality</h3>

    <p>The following processing must be performed when the <code>start()</code>
    method is called:</p>
    <ul>
    <li>None required.</li>
    </ul