class SelectResultSet extends AbstractResultSet {

    @Override
    public boolean isBound(int variableIndex) {
        ensureState();
        return variableIndex >= 0 && variableIndex < jenaResult.getResultVars().size() && current
                .get(getVariableAt(variableIndex)) != null;
    }

    public  SelectResultSet(QueryExecution execution, ResultSet jenaResult);

}