XOM API for Processing XML with Java

[Jeff Hoare <jhoare AT paradise.net.nz>]

Hi,
I'm using an xmi document as input and would like to know if there is anyway 
to resolve idref(s) in the document. The problem is that I'm looking for 
specific tags on elements and these tags are referenced via idref's, so in 
order to determine whether a particular element has been tagged with a tag 
that I'm interested in I first need to resolve the reference and then check 
the tag it refers to.
I have done this using a map that maps ids to their elements (and using this 
to do a look up), but wonder if there is another way using XOM.

Jeff