/**
* Sets the number of seconds after which the response should no longer be considered fresh by shared caches.
*
* This methods sets the Cache-Control s-maxage directive.
*
* @param integer $value A number of seconds
*/
public function setSharedMaxAge($value)
{
$this->headers->getCacheControl()->setSharedMaxAge($value);
}
public function isNoCache()
{
return $this->headers->getCacheControl()->isNoCache() || 'no-cache' == $this->headers->get('Pragma');
}