Hi,
there is exactly one field that you can use for this purpose. Every nonXML-Object has an ino:id AND an ino:docname Attribut attached to it, you can see it, when you query for (e.g.) ino:etc?_xql=ino:nonXML . To access the ino:docname attribute use the method TNonXMLObject.setDocname() .
As I said, it’s only ONE field. Storing the identifier there and keeping a “real” XML document for all the meta-data is - as far as my experience goes - common practice.
Hope this helps! Best regards, Andreas
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