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libraries/joomla/updater/updateadapter.php

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+<?php
+/**
+ * @package     Joomla.Platform
+ * @subpackage  Updater
+ *
+ * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
+ * @license     GNU General Public License version 2 or later; see LICENSE
+ */
+
+defined('JPATH_PLATFORM') or die;
+
+jimport('joomla.base.adapterinstance');
+
+/**
+ * UpdateAdapter class.
+ *
+ * @package     Joomla.Platform
+ * @subpackage  Updater
+ * @since       11.1
+ */
+class JUpdateAdapter extends JAdapterInstance
+{
+	/**
+	 * @var    resource
+	 * @since  12.1
+	 */
+	protected $xmlParser;
+
+	/**
+	 * @var    array
+	 * @since  12.1
+	 */
+	protected $stack = array('base');
+
+	/**
+	 * ID of update site
+	 *
+	 * @var    string
+	 * @since  12.1
+	 */
+	protected $updateSiteId = 0;
+
+	/**
+	 * Columns in the extensions table to be updated
+	 *
+	 * @var    array
+	 * @since  12.1
+	 */
+	protected $updatecols = array('NAME', 'ELEMENT', 'TYPE', 'FOLDER', 'CLIENT', 'VERSION', 'DESCRIPTION', 'INFOURL');
+
+	/**
+	 * Gets the reference to the current direct parent
+	 *
+	 * @return  object
+	 *
+	 * @since   11.1
+	 */
+	protected function _getStackLocation()
+	{
+		return implode('->', $this->stack);
+	}
+
+	/**
+	 * Gets the reference to the last tag
+	 *
+	 * @return  object
+	 *
+	 * @since   11.1
+	 */
+	protected function _getLastTag()
+	{
+		return $this->stack[count($this->stack) - 1];
+	}
+}