addURIProperty(evt, vICAL.url, getHTMLDocument().resolveURI(url.value()));
}
private void addRRule(HTMLDocument compoNode, Resource evt) {
for (Node rule : compoNode.findAllByClassName("rrule")) {
BNode rrule = valueFactory.createBNode();
addURIProperty(rrule, RDF.TYPE, vICAL.DomainOf_rrule);
TextField freq = new HTMLDocument(rule).getSingularTextField("freq");
conditionallyAddStringProperty(
freq.source(),
rrule, vICAL.freq, freq.value()