--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Cloud/DocumentService/QueryAdapter.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,102 @@
+<?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 DocumentService
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+/**
+ * This interface describes the API that concrete query adapter should implement
+ * 
+ * Common interface for document storage services in the cloud. This interface
+ * supports most document services and provides some flexibility for
+ * vendor-specific features and requirements via an optional $options array in
+ * each method signature. Classes implementing this interface should implement
+ * URI construction for collections and documents from the parameters given in each
+ * method and the account data passed in to the constructor. Classes
+ * implementing this interface are also responsible for security; access control
+ * isn't currently supported in this interface, although we are considering
+ * access control support in future versions of the interface. Query
+ * optimization mechanisms are also not supported in this version.
+ *
+ * @category   Zend
+ * @package    Zend_Cloud
+ * @subpackage DocumentService
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+interface Zend_Cloud_DocumentService_QueryAdapter
+{
+    /**
+     * SELECT clause (fields to be selected)
+     * 
+     * @param string $select
+     * @return Zend_Cloud_DocumentService_QueryAdapter
+     */
+    public function select($select);
+
+    /**
+     * FROM clause (table name)
+     * 
+     * @param string $from
+     * @return Zend_Cloud_DocumentService_QueryAdapter
+     */
+    public function from($from);
+
+    /**
+     * WHERE clause (conditions to be used)
+     * 
+     * @param string $where
+     * @param mixed $value Value or array of values to be inserted instead of ?
+     * @param string $op Operation to use to join where clauses (AND/OR)
+     * @return Zend_Cloud_DocumentService_QueryAdapter
+     */
+    public function where($where, $value = null, $op = 'and');
+
+    /**
+     * WHERE clause for item ID
+     * 
+     * This one should be used when fetching specific rows since some adapters
+     * have special syntax for primary keys
+     * 
+     * @param mixed $value Row ID for the document
+     * @return Zend_Cloud_DocumentService_QueryAdapter
+     */
+    public function whereId($value);
+
+    /**
+     * LIMIT clause (how many rows ot return)
+     * 
+     * @param int $limit
+     * @return Zend_Cloud_DocumentService_QueryAdapter
+     */
+    public function limit($limit);
+
+    /**
+     * ORDER BY clause (sorting)
+     * 
+     * @param string $sort Column to sort by
+     * @param string $direction Direction - asc/desc
+     * @return Zend_Cloud_DocumentService_QueryAdapter
+     */
+    public function order($sort, $direction = 'asc');
+
+    /**
+     * Assemble the query into a format the adapter can utilize
+     * 
+     * @return mixed
+     */
+    public function assemble();
+}