modify spotlight metadata record outmost spotlight importer?

i cgange spotlight metadata charge record within concentration (i.e. spotlight importer) nonetheless i can't any api doing so. possible? pointers applicable docs ideal.

in box it's helpful, here's case:

i wish store anxiety file
component route core information store.
ideally, i should means the
record even moved, potentially
opposing mounted volumes. bargain that
an archived fsref aliasrecord pretence since they
permanent wrt moves opposing mounted
volumes. digest store url
also supplement uuid (also stored in
information store) file's
spotlight metadata i could
perform spotlight query that
uuid url longer separate to
record app goes behind to
feeling file.