1 files changed, 40 insertions, 0 deletions
diff --git a/engine/classes/ElggSharedMemoryCache.php b/engine/classes/ElggSharedMemoryCache.php
new file mode 100644
index 000000000..f5f11d2c7
--- /dev/null
+++ b/engine/classes/ElggSharedMemoryCache.php
@@ -0,0 +1,40 @@
+<?php
+/**
+ * Shared memory cache description.
+ * Extends ElggCache with functions useful to shared memory
+ * style caches (static variables, memcache etc)
+ *
+ * @package    Elgg.Core
+ * @subpackage Cache
+ */
+abstract class ElggSharedMemoryCache extends ElggCache {
+	/**
+	 * Namespace variable used to keep various bits of the cache
+	 * separate.
+	 *
+	 * @var string
+	 */
+	private $namespace;
+
+	/**
+	 * Set the namespace of this cache.
+	 * This is useful for cache types (like memcache or static variables) where there is one large
+	 * flat area of memory shared across all instances of the cache.
+	 *
+	 * @param string $namespace Namespace for cache
+	 *
+	 * @return void
+	 */
+	public function setNamespace($namespace = "default") {
+		$this->namespace = $namespace;
+	}
+
+	/**
+	 * Get the namespace currently defined.
+	 *
+	 * @return string
+	 */
+	public function getNamespace() {
+		return $this->namespace;
+	}
+}