Naked Search in service

public List<TplRelease> searchTplReleaseById(TplRelease tr)throws Exception{
        DBOperator dbo = getDBOperator();
        try{
            List<TplRelease> tplReleaseList = new ArrayList<TplRelease>();
            String sqlWhere = "select b.* from "+
                            "(SELECT max(a.CREATE_TIME) AS CREATE_TIME ,  a.TPL_ID    FROM  template.tpl_release a WHERE a.TPL_ID =? AND a.TPL_STATUS ='1' GROUP BY a.TPL_ID ) c "+
                            " left join template.tpl_release  b on c.CREATE_TIME = b.CREATE_TIME and c.TPL_ID = b.TPL_ID";
            PreparedStatement pst = dbo.createPreparedStatement(sqlWhere);
            pst.setString(1,tr.getTplID());
            ResultSet rs = pst.executeQuery();
            while (rs.next()) {    
                TplRelease tplRelease = new TplRelease();                
                tplRelease.setTplID(rs.getString("Tpl_ID"));
                tplRelease.setTplVersion(rs.getString("Tpl_Version"));
                tplRelease.setTplName(rs.getString("Tpl_Name"));
                tplRelease.setTplNamePy(rs.getString("Tpl_Name_Py"));
                tplRelease.setTplDesc(rs.getString("Tpl_Desc"));
                tplRelease.setTplData(rs.getString("Tpl_Data"));
                tplRelease.setTplStatus(rs.getString("Tpl_Status"));
                tplRelease.setTreeNode(rs.getString("Tree_Node"));
                tplRelease.setNodeIndex(rs.getString("Node_Index"));
                tplRelease.setCreator(rs.getString("Creator"));
                tplRelease.setCreateTime(rs.getString("Create_Time"));
                tplRelease.setModifier(rs.getString("Modifier"));
                tplRelease.setModifyTime(rs.getString("Modify_Time"));
                tplRelease.setOwnerOrg(rs.getString("Owner_Org"));
                tplRelease.setInoutFlag(rs.getString("Inout_Flag"));
                tplRelease.setTplType(rs.getString("Tpl_Type"));
                tplReleaseList.add(tplRelease);
            }
            dbo.commit();
            return tplReleaseList;
        }catch(Exception e){
            dbo.rollback();
            throw e;
        }finally{
            dbo.close();
        }
    }