Real World XML

Selecting Container Items by Prefix

In fact, you can make statements about groups of resources that have the same prefixes (which may or may not be members of one container). For example, say I want to connect a date with all resources that start with "http://www.starpowder.com/". I can do that with the aboutEachPrefix attribute of <rdf:Description> like this:

Listing . ch18_16.rdf

<?xml version="1.0" ?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://www.purl.org/DC#"> <rdf:Description about="http://www.starpowder.com/planets.html"> <dc:Title>Mercury</dc:Title> <dc:Creator>Nicolas Copernicus</dc:Creator> <dc:Subject> <rdf:Bag> <rdf:li resource="http://www.starpowder.com/mercury.html"/> <rdf:li resource="http://www.starpowder.com/venus.html"/> ...