Insert into viewobject in app module does not show entity validation errors

Question

Hi everybody,
I am using JDeveloper 10.1.3 and ADF BC/ADF Faces. I want to have a button on one of page and I want that whenever user clicks on this button a records is inserted in a table. so I created an application module service method and exposed it on the client interface and the put it on my page using Data Controls Tab.
Here is some part of my code in application module :
public void setMember() {
HrMembershipsViewImpl membershipView = (HrMembershipsViewImpl)am.findViewObject("HrMembershipsView1");
HrMembershipsViewRowImpl newRow =(HrMembershipsViewRowImpl) membershipView.createRow();
newRow.setAttribute("MemberId",memberID); //this.getCode());
newRow.setAttribute("MembState","1");
newRow.setAttribute("CardState","1");
membershipView.insertRow(newRow);
trans.commit();
When this method tries to insert a record which violates a validation rule in the Base Entity Object, the screen does not show any error regarding to violating the business rule but nothing is inserted. I changed my code and captured the exception around the commit and I found that a JBO-27023 Exception happened after commit ( which was very surprise since the page does not show any error).
Now I can change my code to to the following to show that error happened.
public void setMember() {
try {
trans.commit();
catch (JboException ex) {
     getDBTransaction().rollback();
     throw new JboException ("There is an error during commit");
throw ex;
But I believe it shouldn't be like this. Normally, we should be able to insert programmatically in a view and if the business rules are violated we should get the violation error messages. If I use the above mentioned method we can not understand what business rules are violated.
Does anybody know what is wrong with my solution? I have seen a lot of times that using application module is the best way for adding functionality to the application pages but I really feel that something should be wrong if we can not get business rule violation messages.
Any help or references would be highly appreciated.
Thanks in advance,
Navid

Answer 1

Hello Navid,
it should work without try-catch.
1. When you add try-catch, does your error message appear on the page?
2. Does your page contains af:messages component?
3. Does your button have any navigation to another page?
Rado