1 <?php

     2 

     3 /*

     4  * This file is part of the Symfony package.

     5  *

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

     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 Symfony\Component\Config\Resource;

    13 

    14 /**

    15  * ResourceInterface is the interface that must be implemented by all Resource classes.

    16  *

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

    18  */

    19 interface ResourceInterface

    20 {

    21     /**

    22      * Returns a string representation of the Resource.

    23      *

    24      * @return string A string representation of the Resource

    25      */

    26     function __toString();

    27 

    28     /**

    29      * Returns true if the resource has not been updated since the given timestamp.

    30      *

    31      * @param integer $timestamp The last time the resource was loaded

    32      *

    33      * @return Boolean true if the resource has not been updated, false otherwise

    34      */

    35     function isFresh($timestamp);

    36 

    37     /**

    38      * Returns the resource tied to this Resource.

    39      *

    40      * @return mixed The resource

    41      */

    42     function getResource();

    43 }