XmlBeans and Spring RestTemplate

Hi,

I'm trying to use XmlBeans as a marshaller/unmarshaller for Spring's RestTemplate for an XML document that does not specify an XSD in its header. I constructed the XSD and used the XmlBeans Maven task the generate code from it, but I'm not sure how to tell XmlBeans what classes to unmarshall the document to. 

I found an example using JAXB2 to accomplish the same objective (reading twitter web services from a manually created XSD): 

http://aruld.info/resttemplate-the-spring-way-of-accessing-restful-services/

The Jaxb2Marshaller has a "classesToBeBound" property:
    <bean id="jaxbMarshaller" class="org.springframework.oxm.jaxb.Jaxb2Marshaller">
        <property name="classesToBeBound">
           <list>
                <value>twitter.model.Statuses</value>
            </list>
        </property>
    </bean>

I did not see anything similar in the XmlBeansMarshaller (unless there is a way to specify class mappings in an XmlOptions object.) Does anyone have experience with Spring's XmlBeansMarshaller (http://static.springsource.org/spring/docs/3.0.0.RELEASE/javadoc-api/org/springframework/oxm/xmlbeans/XmlBeansMarshaller.html) that might be able to point me in the right direction?

Thanks
Steve