How to restrict the duplicate values in lov column of VO based Adv Table

Question

Hi Gurus,
I want to restrict the duplicate values at lov which is a colunm in an Adv Table.
If user enters duplicate values then first it should show an error msg that Duplicate values have been entered.
After the duplicate values have been removed, then the user can save all the values in the table.
My Adv Table is based on a VO.
The link how to restrict the duplicate values at form level
talks about Adv Table based on a EoVO, which doesnot work in my case.
My Approach,
I am iterating through RowSetIterator and committing through PROCEDURE.
I am able to avoid duplicate entry through a function checkRespId. (given below)
Below code is for iterating and committing.
public void saveline(String reqid,String userid)
System.out.println("RequestId/saveline"+reqid);
System.out.println("UserId/saveline"+userid);
OAViewObject vo = (OAViewObject)getRespLineVO1();
RespLineVORowImpl row = null;
int fetchedRowCount = vo.getFetchedRowCount();
RowSetIterator deleteIter = vo.createRowSetIterator("deleteIter");
if (fetchedRowCount > 0)
deleteIter.setRangeStart(0);
deleteIter.setRangeSize(fetchedRowCount);
for (int i = 0; i < fetchedRowCount; i++)
System.out.println("Inside the for LOOP");
row = (RespLineVORowImpl)deleteIter.getRowAtRangeIndex(i);
String respoidid = row.getAttribute("ResponsibilityId")+"";
String respname = row.getAttribute("ResponsibilityName")+"";
String stdate = row.getAttribute("StartDate")+"";
String enddate = row.getAttribute("EndDate")+"";
String linestatus ="A";
if(userid!=null)
if(!(respoidid.equals("null")) && respoidid!=null)
String checkingrespid=null;
checkingrespid = checkRespId(userid,respoidid);+contains no if not duplicate and yes if its duplicate+
System.out.println("checkingrespid for Resp with ID :"+respoidid+"exists or not "+checkingrespid);
if(checkingrespid.equals("No"))
     String message, result = null;
Connection txn = getOADBTransaction().getJdbcConnection();
try
calling PROC ...
catch(Exception e)
message = "Error in Inserting into line" + e;
throw new OAException(message, OAException.ERROR);
else
throw new OAException("You have entered duplicate no. of values", OAException.ERROR);
else
System.out.println("respoidid is null");
break;
deleteIter.closeRowSetIterator();
public String checkRespId(String userid,String respoidid)
String createRow="No";
OAViewObject vo = (OAViewObject)findViewObject("CheckRespVO1");
if (vo != null)
vo.setWhereClauseParams(null);
vo.setWhereClauseParam(0, userid);
vo.setWhereClauseParam(1, respoidid);
vo.executeQuery();
System.out.println("ROW COUNT IS "+vo.getRowCount());
if(vo.getRowCount()>0)
createRow="Yes";
else
createRow="No";
return createRow;
Problem:
I remove the duplicate entries and click on save and get this error.
Unable to perform transaction on the record. \nCause: The record contains stale data. The record has been modified by another user.
\nAction: Cancel the transaction and re-query the record to get the new data.
Thanks,
Sombit

Answer 1

Hi Anil,
I am trying out your code but stuck in inserting the rows
using your code in URL: http://oracleanil.blogspot.com/2010/09/oaf-passing-table-type-object-to-oracle.html
I am always getting the same exception i.e COde blast in when I run.
My modified code is:
String[] as = null;
Number[] vNumber = null;
Number[] vNumberrespid = null;
Number reqidnumber = null;
reqidnumber = new Number(Integer.parseInt(reqid));
Connection txn = getOADBTransaction().getJdbcConnection();
String mCreateSearchRequestStatement = null;
OAViewObject vo = (OAViewObject)findViewObject("RespLineVO1");
int j = vo.getFetchedRowCount();
try
System.out.println("abouce try");
vo.reset();
if (vo.getFetchedRowCount() > 0)
System.out.println(String.valueOf("Fetched row count ").concat(String.valueOf(vo.getFetchedRowCount())));
int i = 0;
as = new String[j];
vNumber = new Number[j];
vNumberrespid = new Number[j];
while (vo.hasNext())
vo.next();
System.out.println(String.valueOf("Inisde the do while loop").concat(String.valueOf(i)));
vNumber[i] = (reqidnumber);
vNumberrespid = ((Number)vo.getCurrentRow().getAttribute("ResponsibilityId"));
as[i] = String.valueOf(vo.getCurrentRow().getAttribute("ResponsibilityName")).concat(String.valueOf(""));
System.out.println("Request ID "+reqidnumber[i]);//getting null even there is some value selected
System.out.println("ResponsibilityId "+vNumberrespid[i]);//getting null even there is some value selected
System.out.println("Resp Name "+as[i] );//getting null even there is some value selected
i++;
CallableStatement cs = txn.prepareCall("{call XX_PassTableType.XX_PassTableType_prc(:1, :2,:3)}");
ARRAY array = new ARRAY(new ArrayDescriptor("APPS.JTF_NUMBER_TABLE", txn), txn, vNumber);
ARRAY arraynew = new ARRAY(new ArrayDescriptor("APPS.JTF_NUMBER_TABLE", txn), txn, vNumberrespid);
ARRAY array1 = new ARRAY(new ArrayDescriptor("APPS.JTF_VARCHAR2_TABLE_100", txn), txn, as);
cs.setArray(1, array);
cs.setArray(2, arraynew);
cs.setArray(3, array1);
cs.registerOutParameter(3, 2003, "JTF_VARCHAR2_TABLE_100");
cs.execute();
ARRAY error = null;
error = (ARRAY)cs.getArray(2);
if ((error != null) && (error.length() > 0))
System.out.println(String.valueOf("Error is ").concat(String.valueOf(error.getArray())));
String[] retError = new String[j];
retError = (String[])error.getArray();
System.out.println(String.valueOf("Error in saving data").concat(String.valueOf(retError[0])));
cs.close();
catch (Exception exception)
throw new OAException("code blast", OAException.ERROR);
Thanks,
Sombit