1: <?php
 2: /**
 3:  * Wei Framework
 4:  *
 5:  * @copyright   Copyright (c) 2008-2015 Twin Huang
 6:  * @license     http://opensource.org/licenses/mit-license.php MIT License
 7:  */
 8: 
 9: namespace Wei;
10: 
11: /**
12:  * A counter service
13:  *
14:  * @author      Twin Huang <twinhuang@qq.com>
15:  * @property    Cache $cache A cache service
16:  */
17: class Counter extends Base
18: {
19:     /**
20:      * Increment an item
21:      *
22:      * @param string $key The name of item
23:      * @param int $offset The value to increased
24:      * @return int|false Returns the new value on success, or false on failure
25:      */
26:     public function incr($key, $offset = 1)
27:     {
28:         return $this->cache->incr($key, $offset);
29:     }
30: 
31:     /**
32:      * Decrement an item
33:      *
34:      * @param string $key The name of item
35:      * @param int $offset The value to be decreased
36:      * @return int|false Returns the new value on success, or false on failure
37:      */
38:     public function decr($key, $offset = 1)
39:     {
40:         return $this->cache->decr($key, $offset);
41:     }
42: 
43:     /**
44:      * Retrieve an item
45:      *
46:      * @param string $key The name of item
47:      * @return mixed
48:      */
49:     public function get($key)
50:     {
51:         return $this->cache->get($key);
52:     }
53: 
54:     /**
55:      * Store an item
56:      *
57:      * @param string $key The name of item
58:      * @param mixed $value The value of item
59:      * @return bool
60:      */
61:     public function set($key, $value)
62:     {
63:         return $this->cache->set($key, $value);
64:     }
65: 
66:     /**
67:      * Check if an item is exists
68:      *
69:      * @param string $key
70:      * @return bool
71:      */
72:     public function exits($key)
73:     {
74:         return $this->cache->exists($key);
75:     }
76: 
77:     /**
78:      * Remove an item
79:      *
80:      * @param  string $key The name of item
81:      * @return bool
82:      */
83:     public function remove($key)
84:     {
85:         return $this->cache->remove($key);
86:     }
87: }