/*try {
try {
    public DataSet load(QueryRequest qr) {        Vector tmp = qr.getVector();                if (tmp.size() == 0)    return null;                DataSet ds = new DataSet();        String query = "SELECT * FROM ";                // entities        Set entities = qr.getEntities();        Iterator it = entities.iterator();        while (it.hasNext()) {            query += ((MetaEntity) it.next()).getName();        }                query += createRequestStatement(qr);        System.out.println(query);                /*try {               ResultSet result =                 dbConnection.executeQuery(query);                        while (result.next()) {                DataElement e = new DataElement();                                //                                ds.add(e);            }         } catch (Exception e) {            DataBus.logger.error("Data could not be loaded.");        }*/                return ds;    }