Registry, ViewHelperHead added, Config now inherited from Registry, #16

git-svn-id: svn+ssh://code.netmonsters.ru/svn/majestic/branches/evo@130 4cb57b5f-5bbd-dd11-951b-001d605cbbc5

Registry.php

@@ -0,0 +1,75 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage Model
+ * @since 2010-02-17
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class Registry extends ArrayObject
+{
+    /**
+     * Class name of the singleton registry object.
+     * @var string
+     */
+    private static $_class_name = 'Registry';
+
+    /**
+     * Registry object provides storage for shared objects.
+     * @var Registry
+     */
+    private static $_registry = null;
+
+    /**
+     * Constructs a parent ArrayObject with default
+     * ARRAY_AS_PROPS to allow acces as an object
+     *
+     * @param array $array data array
+     * @param integer $flags ArrayObject flags
+     */
+    public function __construct($array = array(), $flags = parent::ARRAY_AS_PROPS)
+    {
+        parent::__construct($array, $flags);
+    }
+    
+    private function __clone(){}
+
+    /**
+     * Retrieves the default registry instance.
+     *
+     * @return Registry
+     */
+    public static function getInstance()
+    {
+        if (self::$_registry === null) {
+            self::$_registry = new self::$_class_name();
+        }
+        return self::$_registry;
+    }
+
+    static public function get($name, $default = null)
+    {
+        $instance = self::getInstance();
+        if (!$instance->offsetExists($name)) {
+            return $default;
+        }
+        return $instance->offsetGet($name);
+    }
+
+    public static function set($index, $value)
+    {
+        $instance = self::getInstance();
+        $instance->offsetSet($index, $value);
+    }
+
+    public static function isRegistered($index)
+    {
+        if (self::$_registry === null) {
+            return false;
+        }
+        return self::$_registry->offsetExists($index);
+    }
+}