Multiple xs:ID's in one schema?

[Vosper]

I am writing some software to help me navigate my mp3 collection. I have designed a Schema for it, which is basically like this:

Code: Select all

<artist id="">

  <album id="">

     <song id="">Blah blah</song>

  </album>

</artist>

Can I use multiple ID's like this? The schema validates in Oxygen but when I use getElementByID it returns null, even though the ID's match.

[Vosper]

Duh. When creating the new XML Document I had forget to the make the DocumentBuilderFactory aware of the Schema - so it was returning null because it didn't know which elements were of type "xs:ID"

I'm downloading J2SE 5 now because it seems to have better Schema integration