[Exist-open] Running xquery/xpath on doc not stored in database

[Jon G. <jon...@gm...>]

Hi,

How do I execute an xquery or xpath on an xml document that is not
stored in exist?  For example, I want to use xquery to do some
validation beyond what XML schema can support, but I want to run the
validation on an in-memory copy of the xml before I update the copy
that is in the database.

I looked at XQueryService in the XMLDB API.  It has a
query(XMLResource resource, String query) method, but I didn't see a
way to create an XMLResource from a string of XML that  I have
in-memory.

Thanks!
Jon