GetCurrentRow() giving a null when trying to save poplist value

Question

Hi
I have a requirement to develop a custom page with a field XX - which is a poplist.
The functionality should be as follows:
1. When the page renders the poplist should highlight the latest value from the person's uses_tobacco_flag from per_all_people_f.
2. The poplist should show the other values available also.
3. when a change is made and clicked on next button, the changed value if any should be saved in DB and get this value from the DB next time when the page renders.
all the above steps work for someone who has already a value in the table for uses_tobacco_flag. suppose a user A has value as PIPE. The page rendering will bring this value adn any change made will be saved to DB.
However for user B, if he has null value for uses_tobacco_flag in the DB, then the page renders as such, But when I select a new value and try to insert it in the database via API it gives me getCurrentRow null pointer exception.
I am pasting the CO.java and AMImpl.java code below. am always getting DffRow as null
Please help.
**CO.java**
public void processRequest(OAPageContext pageContext, OAWebBean webBean)
super.processRequest(pageContext, webBean);
OAApplicationModule am = pageContext.getApplicationModule(webBean);
int empid = pageContext.getEmployeeId();//get the person id from the page context
Integer pers_id = new Integer (empid);
String personid = pers_id.toString();
Serializable[] parameters = { personid };
//am.invokeMethod("initDetails", parameters);//pass the parameter to the AM initDetails method to call initQuery of VO
am.invokeMethod("init", parameters); //initializes VO
public void processFormRequest(OAPageContext pageContext, OAWebBean webBean)
super.processFormRequest(pageContext, webBean);
if ("benenrollpage".equals(pageContext.getParameter(EVENT_PARAM)) || "persinfopage".equals(pageContext.getParameter(EVENT_PARAM)))
OAApplicationModule xam = pageContext.getApplicationModule(webBean);
OAViewObjectImpl DffVO = (OAViewObjectImpl)xam.findViewObject("XXOMPeopleVO1");
OAViewRowImpl DffRow = (OAViewRowImpl)DffVO.getCurrentRow();
if (DffRow == null)
//pageContext.putDialogMessage(new OAException("BEN", "XXOM_BEN_TOBACCO_USAGE", null, OAException.ERROR, null));
     //throw new OAException("The DffRow is null");
     throw new OAException("The DffRow is still null");
     /*else if (((String)DffVO.getCurrentRow().getAttribute("UsesTobaccoFlag") == null)||((String)DffVO.getCurrentRow().getAttribute("UsesTobaccoFlag") == "")||(((String)DffVO.getCurrentRow().getAttribute("UsesTobaccoFlag")).length() == 0))
          throw new OAException("Please enter the tobacco usage 2");
     else
String tobusage = (String)DffRow.getAttribute("UsesTobaccoFlag");
// pageContext.putDialogMessage(new OAException("This is tob" + " * " + tobusage));
int p_person_id = pageContext.getEmployeeId();
/*if (tobusage == null)
pageContext.putDialogMessage(new OAException("BEN", "XXOM_BEN_TOBACCO_USAGE", null, OAException.ERROR, null));
else
          String tobusechkq = "BEGIN XXOM_BEN_UPD_TOBACCO_USAGE.XXOM_UPDATE_TOBACCO_USAGE(:1,:2);EXCEPTION WHEN OTHERS THEN RAISE_APPLICATION_ERROR(-6501,'error 3');END;";
          OADBTransactionImpl oadbtrans = (OADBTransactionImpl)xam.getOADBTransaction();
          OracleCallableStatement oacallstmt = (OracleCallableStatement)oadbtrans.createCallableStatement(tobusechkq, 1);
          try
               oacallstmt.setInt(1, p_person_id);
               oacallstmt.setString(2, tobusage);
               oacallstmt.execute();
               xam.invokeMethod("apply"); // call the transaction.commit from AM
          catch (Exception e)
               throw OAException.wrapperException(e);
          finally
               if(oacallstmt != null)
               try
                    oacallstmt.close();
               catch(Exception exception2)
                    throw OAException.wrapperException(exception2);
               if ("benenrollpage".equals(pageContext.getParameter(EVENT_PARAM)))
                    pageContext.setForwardURL("OA.jsp?akRegionCode=BEN_EFFECTIVE_DATE_PAGE&akRegionApplicationId=805",
                                                  null,
                                                  OAWebBeanConstants.KEEP_MENU_CONTEXT,
                                                  null,
                                                  null,
                                                  false, // Retain AM
                                                  OAWebBeanConstants.ADD_BREAD_CRUMB_NO, // Do not display breadcrumbs
                                                  OAWebBeanConstants.IGNORE_MESSAGES);
               else if ("persinfopage".equals(pageContext.getParameter(EVENT_PARAM)))
                    pageContext.setForwardURL("OA.jsp?akRegionCode=HR_CREATE_PROCESS_TOP_SS&akRegionApplicationId=800&OAFunc=HR_PERINFO_SS",
                                                  null,
                                                  OAWebBeanConstants.KEEP_MENU_CONTEXT,
                                                  null,
                                                  null,
                                                  false, // Retain AM
                                                  OAWebBeanConstants.ADD_BREAD_CRUMB_NO, // Do not display breadcrumbs
                                                  OAWebBeanConstants.IGNORE_MESSAGES);
          }//else
} //main if
}//processFormRequest
}//main class
==================================================================
AMImpl.java
public void initDetails(String personid)
XXOMPeopleVOImpl vo = getXXOMPeopleVO1();
if (vo == null)
MessageToken[] errTokens = { new MessageToken("OBJECT_NAME", "XXOMPeopleVO1")};
throw new OAException("AK", "FWK_TBX_OBJECT_NOT_FOUND", errTokens);
vo.initQuery(personid);
public void init(String personid)
     OAViewObject vo = (OAViewObject)getXXOMPeopleVO1();
// Per the coding standards, this is the proper way to initialize a
// VO that is used for both inserts and queries. See View Objects
// in Detail in the Developer's Guide for additional information.
if (!vo.isPreparedForExecution())
vo.executeQuery();
Row row = vo.createRow();
vo.insertRow(row);
// Required per OA Framework Model Coding Standard M69
row.setNewRowState(Row.STATUS_INITIALIZED);
initDetails(personid);
}

Answer 1

Seems you are saving data using API (not using EO), so remove/comment the below code lines(which are required when you want to insert data)
Row row = vo.createRow();
vo.insertRow(row);
// Required per OA Framework Model Coding Standard M69
row.setNewRowState(Row.STATUS_INITIALIZED);-Anand