You may access the currently active session in userland code. In order to do this, inject SessionInterface and NOT just the Session object. The former will be a unique instance (singleton) representing the current session while the latter would be a completely new session instance! You can use the Session Manager for accessing sessions which are not currently active. Note that Flow's bootstrap (that is, Neos\Flow\Core\Scripts) will try to resume a possibly existing session automatically. If a session could be resumed during that phase already, calling start() at a later stage will be a no-operation.
See also: SessionManager
Inheritance: implements Neos\Flow\Session\SessionInterface
Session Class Documentation
Example #1
0
 /**
  * @test
  * @expectedException \Neos\Flow\Session\Exception\SessionNotStartedException
  */
 public function destroyThrowsExceptionIfSessionIsNotStarted()
 {
     $session = new Session();
     $session->destroy();
 }