Can not Update/Execute Bind Variable in af:Table or items

Question

Hi Experts,
it will be very helpfull if any one can help me regarding following issues.
I am using JDeveloper/ADF11g . created af:Table in jsx page and want to be executed by passing/assigning Bind Variable as runtime backing bean by any event or during form loading event.
I had write code as below to execute , it works error free but not execute in af:Table .
Please HELP me.
  public void mtBindAss() {
    String amDef = "CPS.model.CPSAppModule";
    String config = "CPSAppModuleLocal";
    ApplicationModule am =
      Configuration.createRootApplicationModule(amDef, config);
    ViewObject vo = am.findViewObject("EmpBranchView1");
    // Set the two design time named bind variables
   //vUSERID is Bind variable
    vo.setNamedWhereClauseParam("vUSERID", null);
    vo.setNamedWhereClauseParam("vUSERID", "value");I have tried to execute by this way
    vo.executeQuery();// it returns executed amount of row counted value
    System.out.println("Executed Row"+vo.getRowCount());Also I have tried to execute by this way
    oracle.binding.BindingContainer bc;
    bc = BindingContext.getCurrent().getCurrentBindingsEntry();
    OperationBinding op = bc.getOperationBinding("Execute");
    op.execute();
  }VO query
SELECT VwEmpbank1.ADDR1,
       VwEmpbank1.BANK_NO,
       VwEmpbank1.BRANCH_NAME,
       VwEmpbank1.ROWID,
       VwEmpbank1.RT_NO,
       VwEmpbank1.USER_ID
FROM VW_EMPBANK VwEmpbank1
WHERE USER_ID=:vUSERIDThanks.
zakir
=======
Edited by: Zakir Hossain on May 14, 2009 11:21 AM

Answer 1

Zakir,
Some brief comments:
1). Doing this via the binding layer is the "better" way if you can (instead of instatiating an AM like that). However, you need to create a binding for ExecuteWithParameters, not Execute. If you're not able to specify the actual parameter values in the pagedef, you can also get the parameter map from the operation binding and set the values that way.
2). If you want the query to execute on page load, you can create an invokeAction binding in the page definition to invoke the ExecuteWithParameters action. Just set the proper refreshCondition.
Hope this gets you going in the right direction.