1 <?php

     2 

     3 /*

     4  * This file is part of the Symfony package.

     5  *

     6  * (c) Fabien Potencier <fabien@symfony.com>

     7  *

     8  * This code is partially based on the Rack-Cache library by Ryan Tomayko,

     9  * which is released under the MIT license.

    10  * (based on commit 02d2b48d75bcb63cf1c0c7149c077ad256542801)

    11  *

    12  * For the full copyright and license information, please view the LICENSE

    13  * file that was distributed with this source code.

    14  */

    15 

    16 namespace Symfony\Component\HttpKernel\HttpCache;

    17 

    18 use Symfony\Component\HttpFoundation\Response;

    19 

    20 /**

    21  * EsiResponseCacheStrategyInterface implementations know how to compute the

    22  * Response cache HTTP header based on the different ESI response cache headers.

    23  *

    24  * @author Fabien Potencier <fabien@symfony.com>

    25  */

    26 interface EsiResponseCacheStrategyInterface

    27 {

    28     /**

    29      * Adds a Response.

    30      *

    31      * @param Response $response

    32      */

    33     function add(Response $response);

    34 

    35     /**

    36      * Updates the Response HTTP headers based on the embedded Responses.

    37      *

    38      * @param Response $response

    39      */

    40     function update(Response $response);

    41 }