@WebMethod(operationName = "ReadPage")
    public ArrayList<Page> ReadPage(@WebParam(name = "page_id") String page_id) {
            Page page  = new Page();
            ArrayList<Page> pages = new ArrayList<Page>();
            ArrayList<QueryCriteria> qc = new ArrayList<QueryCriteria>();
            if(!page_id.equals("-1")){
                qc.add(new QueryCriteria("page_id", page_id, Operand.EQUALS));
            }
            ArrayList<String> fields = new ArrayList<String>();
            ArrayList<QueryOrder> order = new ArrayList<QueryOrder>();
        try {
           pages = page.Read(qc, fields, order);
        } catch (SQLException ex) {
            Logger.getLogger(JAX_WS.class.getName()).log(Level.SEVERE, null, ex);
        }
            if(pages.isEmpty()){
                return null;
            }
        return pages;
    }