How to send redirect from an XSP?

[MTiffany71]

hello all,

i'm trying to check to see if a user is in a session, and if not, redirect them to a login page...

my (rather sloppy) code so far goes like so...

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsp:page language="java"
  xmlns:session="http://apache.org/xsp/session/2.0"
  xmlns:xsp="http://apache.org/xsp"
  xmlns:xsp-request="http://apache.org/xsp/request/2.0"
  create-session="false">

<xsp:logic>

protected void checkUser()
{
if(!getSession())
   {
             //SEND REDIRECT...
         }
}

protected boolean getSession()
{
  Session session=request.getSession(false);
if(session == null)
return false;
else
return true;

}
</xsp:logic>

so, anyone care to share with me the secret of sending a redirect? I've checked out the response stylesheet and that was of no help, and the action stylesheet is apparently "not for use in Generators"...

any and all help (exlcuding RTFM) welcome