How to optimize XQuery?

[Robson]

Hi all,

I'm using the xquery implemantion available in 
http://www.oracle.com/technology/sample_code/tech/xml/xmldb/xmldb_xquerydownload.html. 
It
seems to work well, except because the ResultSet take a long time to 
execute the "resultset.next()", mainly with big files and i'm using 
"where clauses". Does anyone know how to optimize query or if there is 
another faster implementation of xquery available to download?

Thanks in advance,
cheers,

Robson Hugo Araújo dos Santos