How to programatically insert a row in a table with the help of view object object



        try{
        FacesContext fcc=FacesContext.getCurrentInstance();
        HttpServletRequest req=(HttpServletRequest)fcc.getExternalContext().getRequest();
        HttpSession session =req.getSession();
       
        String amDef = "model.applicationmodule.AppModule";
        String config = "AppModuleLocal";
        ApplicationModule am =Configuration.createRootApplicationModule(amDef, config);
        String[] volist =  amm.getViewObjectNames();
            ViewObject vo=null;
        
                        vo=amm.findViewObject(volist[i]); 
            vo.executeQuery();
        
CityViewRowImpl cvri=(CityViewRowImpl)vo.createRow();
        
        cvri.setAttribute("State", "NewYork");
        cvri.setAttribute("City1", "Washington");
        vo.insertRow(cvri);

    am.getTransaction().commit();
        }catch(Exception e){
    e.printStackTrace();
                  }
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