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diff --git a/offapi/com/sun/star/ucb/HierarchyDataReadWriteAccess.idl b/offapi/com/sun/star/ucb/HierarchyDataReadWriteAccess.idl
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef __com_sun_star_ucb_HierarchyDataReadWriteAccess_idl__
+#define __com_sun_star_ucb_HierarchyDataReadWriteAccess_idl__
+
+#include <com/sun/star/ucb/HierarchyDataReadAccess.idl>
+#include <com/sun/star/container/XNameContainer.idl>
+#include <com/sun/star/lang/XSingleServiceFactory.idl>
+#include <com/sun/star/util/XChangesBatch.idl>
+
+
+module com { module sun { module star { module ucb {
+
+/** provides read and write access to a fragment of the hierarchy data.
+*/
+published service HierarchyDataReadWriteAccess
+{
+    /** provides read access to a fragment of the hierarchy data
+     */
+    service HierarchyDataReadAccess;
+
+    /** allows adding and removing of hierarchy data nodes, replacing of
+        the value of hierarchy data node members, as well as obtaining the
+        value of hierarchy data node members.
+
+        <p>Adding and removing must only be supported if the access object
+        points to the "Children" data member of a node or to the root node.
+        It will insert a new node or remove an existing one. If supported
+        on data nodes, adding must add new data members to the node, removing
+        must remove data members. However, the mandatory data members (Title,
+        TargetURL, Children) must never be removable.
+
+        <p>Replacing and getting values must be supported be every data node.
+     */
+    interface com::sun::star::container::XNameContainer;
+
+    /** gives access to all contents provided by this provider.
+
+        <p>com::sun::star::lang::XSingleServiceFactory::createInstance()
+        will create a new empty hierarchy data node. After it was created
+        it's data members can be filled. Last, the node can be inserted as child
+        of another node using
+        com::sun::star::container::XNameContainer::insertByName().
+
+        <p>There are no special arguments that must be supported by
+        com::sun::star::lang::XSingleServiceFactory::createInstanceWithArguments()
+     */
+    interface com::sun::star::lang::XSingleServiceFactory;
+
+    /** allows managing changes within the hierarchy.
+
+        <p>com::sun::star::util::XChangesBatch::getPendingChanges()
+        reports all changes within the hierarchy that are done through (direct
+        or indirect) descendants of this element. The same set of changes is
+        committed to persistent storage and/or made visible to other objects
+        accessing the same data set, when
+        com::sun::star::util::XChangesBatch::commitChanges()
+        is invoked.
+     */
+    interface com::sun::star::util::XChangesBatch;
+};
+
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */