@Override
public int indexOf(final RDFNode o) throws ReadDeniedException, AuthenticationRequiredException {
checkRead();
final Statement stmt = containerIndexOf(o);
if (stmt == null) {
return 0;
}
checkRead(stmt);
return stmt.getPredicate().getOrdinal();
}
@Override
public boolean test(final Statement o) {
return (o.getPredicate().getOrdinal() != 0) && n.equals(o.getObject());
}