Help Needed in checking session variable

Question

In a sample site, I am calling a bounded task flow from an unbounded task flow. In the called taskflow the default activity is a router which checks the session variable, and the home page will be loaded only if the session variable is not null. If session variable is null router will lead to a page dispalying 'session expired'. But even after clearing the session if I copy pasted the previous url, the home page is loading. But when I call bounded taskflow from a bounded taskflow, it is working fine. Can anyone suggest any solution? Thanks in advance

Answer 1

Thanks for the reply. I'm using jdev 11.1.1.5.0.. I'm just trying with a sample example. I have a login page and when the user logins, the user name is stored in session. the loginpage view activity is in adfc config unbounded taskflow. The login credentials is validated in a backing bean and based on the return value, if the login is valid, a bounded taskflow 'hometaskflow' is called. In this bounded taskflow, the default activity is a router wchich checks the username stored in session. If the username is not null it will lead to the 'homepage' view. Else if it is null it will lead to a 'sessionexpired' view.
In the java class of login page I'm accessing the session variable as shown
public Username getSessionBean()
Username username =
(Username)resolveExpression("#{Username}");
return username;
public static Object resolveExpression(String expression)
FacesContext facesContext = FacesContext.getCurrentInstance();
Application app = facesContext.getApplication();
ExpressionFactory elFactory = app.getExpressionFactory();
ELContext elContext = facesContext.getELContext();
ValueExpression valueExp =
elFactory.createValueExpression(elContext, expression,
Object.class);
return valueExp.getValue(elContext);
On login button click the function being executed is as shown
public String onLoginClick() {
if(String.valueOf(itUserName.getValue()).equals("admin")
&& String.valueOf(itPassword.getValue()).equals("admin"))
Username username=getSessionBean();
username.setUsername(itUserName.getValue().toString());
return "success";
else {
return "invalid";
And to set username as null on logout, I used this function on logout click
public void clearSession()
Username username=getSessionBean();
username.setUsername(null);
The EL expression used to check the value of session variable is
#{sessionScope.Username.username==null} outcome is expired
#{sessionScope.Username.username!=null} outcome is active
This worked when I used in a bounded taskflow, which is being called from another bounded taskflow. But not working in this scenario...