How to instantiate a custom session

Question

I'm working on a module with a custom namespace session. I extended the Session class and created a new object, but every time I use the new object it overwrites the parent one while I need 2 different instances

Can a custom session be instantiated twice ? thanks

Answer 1

Ok, I found it, the extended class should override the parent method __construct and use a different namespace

 public function __construct()
    {
        $namespace = 'different_name_from_parent';
        $this->init($namespace);
        Mage::dispatchEvent('event_name', array('session_name'=>$this));
    }

Otherwise Mage_Core_Model_Session_Abstract_Varien::init() will merge the data array from the parent session

$this->_data = &$_SESSION[$namespace];

and the result is a copy of the same object