1: <?php
 2: 
 3: /**
 4:  * This file is part of the Nette Framework (https://nette.org)
 5:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
 6:  * @package Nette\Caching
 7:  */
 8: 
 9: 
10: 
11: /**
12:  * Cache storage.
13:  *
14:  * @author     David Grudl
15:  * @package Nette\Caching
16:  */
17: interface ICacheStorage
18: {
19: 
20:     /**
21:      * Read from cache.
22:      * @param  string key
23:      * @return mixed|NULL
24:      */
25:     function read($key);
26: 
27:     /**
28:      * Prevents item reading and writing. Lock is released by write() or remove().
29:      * @param  string key
30:      * @return void
31:      */
32:     function lock($key);
33: 
34:     /**
35:      * Writes item into the cache.
36:      * @param  string key
37:      * @param  mixed  data
38:      * @param  array  dependencies
39:      * @return void
40:      */
41:     function write($key, $data, array $dependencies);
42: 
43:     /**
44:      * Removes item from the cache.
45:      * @param  string key
46:      * @return void
47:      */
48:     function remove($key);
49: 
50:     /**
51:      * Removes items from the cache by conditions.
52:      * @param  array  conditions
53:      * @return void
54:      */
55:     function clean(array $conditions);
56: 
57: }
58: