how we will check session objects in logic:present tag

[Praveen Kumar]

Hi,
I need to test whether we have session attribute in session using <logic> tag.

The code is :

<logic:NotPresent name="Branch" scope="session">
System.out.println("The branch is not there : From lcommands.jsp");
</logic:NotPresent>
But i am getting output always(Branch is not set also).

Can anybody help me to find out the way to check the session objects thru <logic> tag.

Thanks In advance.
Praveen

[Purushoth Thambu]

It's possible you misspelt the session attribute. You can dump the whole session content to see the attributes stored.

  <%
  Enumeration num = session.getAttributeNames();
  while(num.hasMoreElements())
  {
    String name= (String) num.nextElement();
    out.writeln("Found Attribute : " + name);
  }
  %>

[Praveen Kumar]

Hi Thanks for Your Quick reply. !!

I know how to get session attributes in normal way.

But i want to check session objects in <logic> tag.

Here is the code sample.

First i want to see whether Branch attribute is there or not !!
if(there){ display}
else{select your branch }

These is my requirement.
i setted my Branch as session.setAttribute("Branch",value);(in first)
In second.jsp , i am using as
<logic:notPresent name="Branch" scope="session>
No Branch is selectes...
</logic:notPresent>
<logic resent name="Branch" scope="session>
Display
</logic resent>

But for me both are working !!But it should not right !!

Otherwise is there any mechanisam to fulfill my requirement.


Thanks in Advance
praveen

[Merrill Higginson]

Did you remember to put a taglib declaration for the "logic" tag library at the beginning of the JSP?

[Brent Sterling]

Yea I would wonder about the missing taglib. If that is not the issue, be sure to use a lower case "n" in your tag (logic:notEqual). Case is important but I think you will get an error if you have the tablib statement in place. You can double check by viewing the source in your browser. If the logic:notPresent tag is not being processed as a JSP tag it will get passed through to the browser.

- Brent
[ November 06, 2006: Message edited by: Brent Sterling ]