Exception of null pointer so that he was trying to get the view inside the AM object

Hi all

I use jdev 11.1.2.2
I try to create the session of the application
but the view object is thrown null pointer exception even if the view object is available within the impl class
    protected void prepareSession(Session session) {
        LOGGER.log(ADFLogger.TRACE, "Preparing the user session...");
        super.prepareSession(session);
      String emailId = ADFContext.getCurrent().getSecurityContext().getUserName();
        LOGGER.log(ADFLogger.TRACE, "Setting the user-context - app_user_lang on the database...");*/
        
           ViewObjectImpl UserAuthentionEVO =  this.getUserAuthenticationEVO();
          UserAuthentionEVO.setNamedWhereClauseParam("The_EmailId", emailId);//Throws null pointer exception
            UserAuthentionEVO.executeQuery();
            Row row= UserAuthentionEVO.first();
             if (row != null) {
            getSession().getUserData().put("USER_ID", row.getAttribute("UserId"));
           getSession().getUserData().put("ROLE_ID" , row.getAttribute("RoleId"));
             }
    public ViewObjectImpl getUserAuthenticationEVO() {
        return (ViewObjectImpl)findViewObject("UserAuthenticationEVO");
    }
this.getUserAuthenticationEVO () returns null

Why is what is throwing the error?
No idea why its pointing to null?

Thanks in advance,
Rakesh

Published by: Rakesh on July 4, 2012 07:22

Because of the hierarachy?

Your test case shows apparently so.

What I am doing wrong?

I wouldn't say that you're doing something wrong, just that ADF BC apparently does not support your use case. Use straight JDBC (even to call a stored procedure if you want to instead of using the SELECT statement) and problem solved.

John

Tags: Java

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