1<?php 2 3/* 4 * This file is part of the Assetic package, an OpenSky project. 5 * 6 * (c) 2010-2014 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 12namespace 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 */ 19interface ResourceInterface 20{ 21 /** 22 * Checks if a timestamp represents the latest resource. 23 * 24 * @param integer $timestamp A UNIX timestamp 25 * 26 * @return Boolean True if the timestamp is up to date 27 */ 28 public function isFresh($timestamp); 29 30 /** 31 * Returns the content of the resource. 32 * 33 * @return string The content 34 */ 35 public 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 public function __toString(); 43} 44