Oracle ADF: Cannot Commit Database Transaction

Question

Hi All
I am trying to update oracle database using Oracle ADF from command line. The following is my code snippet
  final String amName1 = "taxreturn.AM_Taxreturn";
  final String connStr = "jdbc:oracle:thin:o9ias/[email protected]:1521:t1fdbo";
  Hashtable env = new Hashtable(2);
  env.put(Context.INITIAL_CONTEXT_FACTORY, JboContext.JBO_CONTEXT_FACTORY);
  env.put(JboContext.DEPLOY_PLATFORM, JboContext.PLATFORM_LOCAL);
  ApplicationModule appMod1 = null;
try {
   javax.naming.Context ic = new InitialContext(env);
  ApplicationModuleHome home1 = (ApplicationModuleHome)ic.lookup(amName1);
  appMod1 = home1.create();
  appMod1.getTransaction().connect(connStr);
} catch (Exception e) {
    e.printStackTrace();
  ViewObject t1xvVO = appMod1.createViewObject("t1xvVO", "taxreturn.T1XrefVView");
  t1xvVO.setWhereClause("T1X_T1FU_USERID='" + "testlin2" + "' and T1X_T1_TAXYEAR='" + "2012" + "' and T1X_DELETED is null and T1X_INVOICE_T1_150 is null");
  t1xvVO.executeQuery();
Row rowT1xv = null;
int count = 0;
while (t1xvVO.hasNext()) {
count++;
rowT1xv = t1xvVO.next();
System.out.println("Number of records: " + count);
t1xvVO.executeQuery();
if (t1xvVO.hasNext()) {
    rowT1xv = t1xvVO.last();
    System.out.println("First Name: " + rowT1xv.getAttribute("T1FirstName"));
    System.out.println("T1xInvoiceT1150: Before: " + rowT1xv.getAttribute("T1xInvoiceT1150"));
    rowT1xv.setAttribute("T1xInvoiceT1150", "250");
    //appMod1.getTransaction().postChanges();
    System.out.println("T1xInvoiceT1150: After: " + rowT1xv.getAttribute("T1xInvoiceT1150"));
System.out.println("Is Dirty: " + t1xvVO.getApplicationModule().getTransaction().isDirty());
try {
    appMod1.getTransaction().commit();
    System.out.println("Commit succeeded.");
} catch (oracle.jbo.JboException e) {
    System.out.println("Commit failed. " + e);
I can see there are total 3 records retrieved. Then I execute query for the view object again and change the last record. But after the commit statement, the database is not update. What's wrong here? Thanks in advance
Leaf

Answer 1

Refer 6.4.9 How to Create a New Row for a View Object Instance
http://docs.oracle.com/cd/E37975_01/web.111240/e16182/bcqueryresults.htm#sm0094
The procedure to create an ApplicationModule and find View object is different than in the code snippet. Use the procedure in the link.