Error While Inserting Data into table using OAF

Question

Hi Experts,
I am learning OAF; i am trying into insert the data into table using OAF. I followed the below procedure.
My table(OLF_TEST_TBL) Columns:
EmpID (Number), Ename(VARCHAR2 100), Sal Number, and who columns.
1. created Application Module (AM).
package: oracle.apps.mfg.simplepg.server
name: oaf_test_tbl_am
2. created simple page
name:EmployeePG
package:oracle.apps.mfg.simplepg.webui
3. Assigned the Application Module to Page
4. Created Entity Object(EO)
name:oaf_test_tbl_eo
package:oracle.apps.mfg.simplepg.schema.server
schema:apps
table:OLF_TEST_TBL
note:
1. EMPID column is selected as primary key
2. selected create method, remove method and validation method.
3.checked generate default view object
VO:
name:olf_test_tbl_vo
note: Entity Object was assigned to VO
Coming To page:
page main region:EmployeeMainRN
1.under main region i created one more region using wizard
selected AM and VO, region style-default single column
2. under main region i created one more region
region style- pagebuttonbar, ID:pagebutoonsRN
3. under pagebuttonRN, created two submit buttons(ID:SUBMIT, ID:CANCEL).
In AM java page:
created a method to insert row and for commit.
Insert Method:
public void insertrow(){
OAViewObject vo=(OAViewObject)getoaf_test_tbl_vo1();
if(!vo.isPreparedForExecution()){
vo.executeQuery();
Row row=vo.createRow();
vo.insertRow(row);
row.setNewRowState(Row.STATUS_INITIALIZED);
Commit Method:
public void savaDataTooaftesttable(){
getDBTransaction().commit();
In EmployeeMainRN, created a controller.
In this controller process request method, 'insertrow' method was called.
import oracle.apps.fnd.framework.OAApplicationModule;
public void processRequest(OAPageContext pageContext, OAWebBean webBean)
super.processRequest(pageContext, webBean);
if (!pageContext.isFormSubmission())
OAApplicationModule am = pageContext.getApplicationModule(webBean);
am.invokeMethod("insertrow");
To commit the transaction when SUBMIT button pressed, commit method was called in process form request method.
import oracle.apps.fnd.framework.OAViewObject;
public void processformRequest(OAPageContext pageContext, OAWebBean webBean)
super.processFormRequest(pageContext, webBean);
OAApplicationModule am = pageContext.getApplicationModule(webBean);
if (pageContext.getParameter("SUBMIT") != null)
am.invokemethod("savaDataTooaftesttable");
Error After clicking the submit button_
I ran the page, page was opened successfully. Once i enter data and click submit button, it's giving the following error.
The requested page contains stale data. This error could have been caused through the use of the browser's navigation buttons (the browser Back button, for example). If the browser's navigation buttons were not used, this error could have been caused by coding mistakes in application code. Please check Supporting the Browser Back Button developer guide - View Object Primary Key Comparison section to review the primary causes of this error and correct the coding mistakes.
Cause:
The view object oaf_test_tbl_am.oaf_test_tbl_vo1700_oaf_test_tbl_vo1_practice_test_prc1_oracle_apps_mfg_simplepg_server_oaf_test_tbl_am.oaf_test_tbl_vo1 contained no record. The displayed records may have been deleted, or the current record for the view object may not have been properly initialized.
To proceed, please select the Home link at the top of the application page to return to the main menu. Then, access this page again using the application's navigation controls (menu, links, and so on) instead of using the browser's navigation controls like Back and Forward.
Experts, Kindly help me why i am getting this error.
Awating your replies.
Thanks in advance.

Answer 1

If you dont want to create message. You can throw exception like below as well
          throw new OAException("Emp Id is "+empId+" and employee name is "+empName, OAException.CONFIRMATION);Thanks
--Anil