diff -r 5b37998e522e -r 162c1de6545a web/lib/Zend/Cloud/QueueService/Adapter/AbstractAdapter.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Cloud/QueueService/Adapter/AbstractAdapter.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,92 @@
+<?php
+/**
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cloud
+ * @subpackage QueueService
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+require_once 'Zend/Cloud/QueueService/Adapter.php';
+require_once 'Zend/Cloud/QueueService/Message.php';
+require_once 'Zend/Cloud/QueueService/MessageSet.php';
+
+/**
+ * Abstract queue adapter
+ *
+ * Provides functionality around setting message and message set classes.
+ *
+ * @category   Zend
+ * @package    Zend_Cloud
+ * @subpackage QueueService
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+abstract class Zend_Cloud_QueueService_Adapter_AbstractAdapter
+    implements Zend_Cloud_QueueService_Adapter
+{
+    /**@+ option keys */
+    const MESSAGE_CLASS    = 'message_class';
+    const MESSAGESET_CLASS = 'messageset_class';
+    /**@-*/
+
+    /** @var string Class to use for queue messages */
+    protected $_messageClass    = 'Zend_Cloud_QueueService_Message';
+
+    /** @var string Class to use for collections of queue messages */
+    protected $_messageSetClass = 'Zend_Cloud_QueueService_MessageSet';
+
+    /**
+     * Set class to use for message objects
+     * 
+     * @param  string $class 
+     * @return Zend_Cloud_QueueService_Adapter_AbstractAdapter
+     */
+    public function setMessageClass($class)
+    {
+        $this->_messageClass = (string) $class;
+        return $this;
+    }
+
+    /**
+     * Get class to use for message objects
+     * 
+     * @return string
+     */
+    public function getMessageClass()
+    {
+        return $this->_messageClass;
+    }
+
+    /**
+     * Set class to use for message collection objects
+     * 
+     * @param  string $class 
+     * @return Zend_Cloud_QueueService_Adapter_AbstractAdapter
+     */
+    public function setMessageSetClass($class)
+    {
+        $this->_messageSetClass = (string) $class;
+        return $this;
+    }
+
+    /**
+     * Get class to use for message collection objects
+     * 
+     * @return string
+     */
+    public function getMessageSetClass()
+    {
+        return $this->_messageSetClass;
+    }
+}