fulltext indexing in dbXML

[Franck Delahaye]

I'd like to index the full text of the xml documents I want to store in 
dbXML.
To be more precise, what I call the "full text" is any text inside a tag.
The goal is to index Xpath queries like: 
/document-root-tag/a-content-tag//[contains(text(), "a text criteria")]
where "a-content-tag" is a "highly" structured tag (nesting level of a 
descendant may be up to 10).
is it possible to do that ?

Franck