abstract class AbstractProxy

AbstractProxyTest.php in drupal/core/vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Tests/Session/Storage/Proxy/AbstractProxyTest.php

NativeSessionStorage.php in drupal/core/vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php

abstract class AbstractProxy {

  /**
   * Flag if handler wraps an internal PHP session handler (using \SessionHandler).
   *
   * @var boolean
   */
  protected $wrapper = false;

  /**
   * @var boolean
   */
  protected $active = false;

  /**
   * @var string
   */
  protected $saveHandlerName;

  /**
   * Gets the session.save_handler name.
   *
   * @return string
   */
  public function getSaveHandlerName() {
    return $this->saveHandlerName;
  }

  /**
   * Is this proxy handler and instance of \SessionHandlerInterface.
   *
   * @return boolean
   */
  public function isSessionHandlerInterface() {
    return $this instanceof \SessionHandlerInterface;
  }

  /**
   * Returns true if this handler wraps an internal PHP session save handler using \SessionHandler.
   *
   * @return Boolean
   */
  public function isWrapper() {
    return $this->wrapper;
  }

  /**
   * Has a session started?
   *
   * @return Boolean
   */
  public function isActive() {
    return $this->active;
  }

  /**
   * Sets the active flag.
   *
   * @param Boolean $flag
   */
  public function setActive($flag) {
    $this->active = (bool) $flag;
  }

  /**
   * Gets the session ID.
   *
   * @return string
   */
  public function getId() {
    return session_id();
  }

  /**
   * Sets the session ID.
   *
   * @param string $id
   */
  public function setId($id) {
    if ($this
      ->isActive()) {
      throw new \LogicException('Cannot change the ID of an active session');
    }
    session_id($id);
  }

  /**
   * Gets the session name.
   *
   * @return string
   */
  public function getName() {
    return session_name();
  }

  /**
   * Sets the session name.
   *
   * @param string $name
   */
  public function setName($name) {
    if ($this
      ->isActive()) {
      throw new \LogicException('Cannot change the name of an active session');
    }
    session_name($name);
  }

}