From 76dac45ebaf104b312a8527a05424601ca9d520a Mon Sep 17 00:00:00 2001
From: ewinslow <ewinslow@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Mon, 6 Sep 2010 02:42:09 +0000
Subject: Refs #2220: Pulled most classes / interfaces out of lib files (except
 query.php and exception.php) into "classes" folder.  Replaced inline classes
 with "require_once" statements for now.  Ran unit tests to verify
 functionality before committing.

git-svn-id: http://code.elgg.org/elgg/trunk@6908 36083f99-b078-4883-b0ff-0f9b5a30f544
---
 engine/classes/ElggStaticVariableCache.php | 66 ++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 engine/classes/ElggStaticVariableCache.php

(limited to 'engine/classes/ElggStaticVariableCache.php')

diff --git a/engine/classes/ElggStaticVariableCache.php b/engine/classes/ElggStaticVariableCache.php
new file mode 100644
index 000000000..0038862bd
--- /dev/null
+++ b/engine/classes/ElggStaticVariableCache.php
@@ -0,0 +1,66 @@
+<?php
+/**
+ * ElggStaticVariableCache
+ * Dummy cache which stores values in a static array. Using this makes future replacements to other caching back
+ * ends (eg memcache) much easier.
+ *
+ * @author Curverider Ltd <info@elgg.com>
+ * @package Elgg
+ * @subpackage API
+ */
+class ElggStaticVariableCache extends ElggSharedMemoryCache {
+	/**
+	 * The cache.
+	 *
+	 * @var unknown_type
+	 */
+	private static $__cache;
+
+	/**
+	 * Create the variable cache.
+	 *
+	 * This function creates a variable cache in a static variable in memory, optionally with a given namespace (to avoid overlap).
+	 *
+	 * @param string $namespace The namespace for this cache to write to - note, namespaces of the same name are shared!
+	 */
+	function __construct($namespace = 'default') {
+		$this->setNamespace($namespace);
+		$this->clear();
+	}
+
+	public function save($key, $data) {
+		$namespace = $this->getNamespace();
+
+		ElggStaticVariableCache::$__cache[$namespace][$key] = $data;
+
+		return true;
+	}
+
+	public function load($key, $offset = 0, $limit = null) {
+		$namespace = $this->getNamespace();
+
+		if (isset(ElggStaticVariableCache::$__cache[$namespace][$key])) {
+			return ElggStaticVariableCache::$__cache[$namespace][$key];
+		}
+
+		return false;
+	}
+
+	public function delete($key) {
+		$namespace = $this->getNamespace();
+
+		unset(ElggStaticVariableCache::$__cache[$namespace][$key]);
+
+		return true;
+	}
+
+	public function clear() {
+		$namespace = $this->getNamespace();
+
+		if (!isset(ElggStaticVariableCache::$__cache)) {
+			ElggStaticVariableCache::$__cache = array();
+		}
+
+		ElggStaticVariableCache::$__cache[$namespace] = array();
+	}
+}
\ No newline at end of file
-- 
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