1 <?php

     2 

     3 /*

     4  * This file is part of the Assetic package, an OpenSky project.

     5  *

     6  * (c) 2010-2011 OpenSky Project Inc

     7  *

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

     9  * file that was distributed with this source code.

    10  */

    11 

    12 namespace Assetic\Factory\Resource;

    13 

    14 /**

    15  * A resource is something formulae can be loaded from.

    16  *

    17  * @author Kris Wallsmith <kris.wallsmith@gmail.com>

    18  */

    19 interface ResourceInterface

    20 {

    21     /**

    22      * Checks if a timestamp represents the latest resource.

    23      *

    24      * @param integer $timestamp A UNIX timestamp

    25      *

    26      * @return Boolean True if the timestamp is up to date

    27      */

    28     function isFresh($timestamp);

    29 

    30     /**

    31      * Returns the content of the resource.

    32      *

    33      * @return string The content

    34      */

    35     function getContent();

    36 

    37     /**

    38      * Returns a unique string for the current resource.

    39      *

    40      * @return string A unique string to identity the current resource

    41      */

    42     function __toString();

    43 }