@Override
public final Item ebv(final QueryContext ctx, final InputInfo ii) throws QueryException {
Item it = null;
if (type().zeroOrOne()) {
it = item(ctx, input);
} else {
final Iter ir = iter(ctx);
it = ir.next();
if (it != null && !it.node() && ir.next() != null) CONDTYPE.thrw(input, this);
}
return it == null ? Bln.FALSE : it;
}
/**
* Returns a boolean representation of the value.
*
* @param ii input info
* @return boolean value
* @throws QueryException query exception
*/
public boolean bool(final InputInfo ii) throws QueryException {
throw CONDTYPE.thrw(ii, type, this);
}