1: <?php
 2: /**
 3:  * Shared memory cache description.
 4:  * Extends ElggCache with functions useful to shared memory
 5:  * style caches (static variables, memcache etc)
 6:  *
 7:  * @package    Elgg.Core
 8:  * @subpackage Cache
 9:  */
10: abstract class ElggSharedMemoryCache extends ElggCache {
11:     /**
12:      * Namespace variable used to keep various bits of the cache
13:      * separate.
14:      *
15:      * @var string
16:      */
17:     private $namespace;
18: 
19:     /**
20:      * Set the namespace of this cache.
21:      * This is useful for cache types (like memcache or static variables) where there is one large
22:      * flat area of memory shared across all instances of the cache.
23:      *
24:      * @param string $namespace Namespace for cache
25:      *
26:      * @return void
27:      */
28:     public function setNamespace($namespace = "default") {
29:         $this->namespace = $namespace;
30:     }
31: 
32:     /**
33:      * Get the namespace currently defined.
34:      *
35:      * @return string
36:      */
37:     public function getNamespace() {
38:         return $this->namespace;
39:     }
40: }
41: