public long evalAsInteger(Focus focus, EvalContext context) throws EvaluationException {
context.at(this);
String s1 = args[0].evalAsOptString(focus, context);
String s2 = args[1].evalAsOptString(focus, context);
if (s1 == null || s2 == null) throw EmptyException.instance();
Collator coll = getCollator(args.length <= 2 ? null : args[2], focus, context);
context.at(this);
// use Comparison.of to obtain EQ LT GT etc
return Comparison.of(coll != null ? coll.compare(s1, s2) : s1.compareTo(s2), 0);
}
public double evalAsDouble(Focus focus, EvalContext context) throws EvaluationException {
context.at(this);
XQItem v = args[0].evalAsOptItem(focus, context);
if (v == null) throw EmptyException.instance();
if (v instanceof MomentValue) {
MomentValue mv = (MomentValue) v;
return mv.getValue().getSecond();
}
try {
DateTime dt = DateTime.parseDateTime(v.getString());
return dt.getSecond();
} catch (DateTimeException e) {
context.error(Conversion.ERR_CAST, this, "cannot cast to xs:dateTime : " + e.getMessage());
return 0;
}
}