How to get the xml node value at below situation?

[xeoshow]

Hello, dear all

I used ROO to generated a project, and configured it returned the XML result via REST. The xml data is as below:
-------
<list>
<com.domain.Products>
<cla__id>
<cname>class1</cname>
<id>1</id>
</cla__id>
<name>pname1</name>
<id>1</id>
</com.domain.Products>

<com.domain.Products>
<cla__id reference="../../com.domain.Products/cla__id"/>
<name>pname2</name>
<id>2</id>
</com.domain.Products>
</list>
-------

Now I need to get the cname node value via xpath, for the first node of <com.domain.Products>, it is obvious, but for the 2nd node of <com.domain.Products>, how can I do this since it is using the reference attribute?

Any one met such problem and how to resolve? Thanks a lot.

[xeoshow]

Any one could help please? Tried to find the answer but just did not find...
Or can I let the second node will just show the detailed info of <cla__id>, not reference?

Thanks so much in advance!