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diff --git a/offapi/com/sun/star/document/XStorageBasedDocument.idl b/offapi/com/sun/star/document/XStorageBasedDocument.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_document_XStorageBasedDocument_idl__
+#define __com_sun_star_document_XStorageBasedDocument_idl__
+
+#include <com/sun/star/uno/XInterface.idl>
+#include <com/sun/star/embed/XStorage.idl>
+#include <com/sun/star/io/IOException.idl>
+#include <com/sun/star/frame/DoubleInitializationException.idl>
+#include <com/sun/star/document/XStorageChangeListener.idl>
+#include <com/sun/star/lang/IllegalArgumentException.idl>
+#include <com/sun/star/beans/PropertyValue.idl>
+
+
+ module com {  module sun {  module star {  module document {
+
+/** allows to initialize document with a storage, to store document to
+    a storage, and to set document to be based on provided storage.
+ */
+interface XStorageBasedDocument: com::sun::star::uno::XInterface
+{
+    /** lets the document load itself using provided storage.
+     */
+    void loadFromStorage(
+            [in] ::com::sun::star::embed::XStorage xStorage,
+            [in] sequence< ::com::sun::star::beans::PropertyValue > aMediaDescriptor )
+        raises( ::com::sun::star::lang::IllegalArgumentException,
+                ::com::sun::star::frame::DoubleInitializationException,
+                ::com::sun::star::io::IOException,
+                ::com::sun::star::uno::Exception );
+
+    /** lets the document store itself to the provided storage.
+     */
+    void storeToStorage(
+            [in] ::com::sun::star::embed::XStorage xStorage,
+            [in] sequence< ::com::sun::star::beans::PropertyValue > aMediaDescriptor )
+        raises( ::com::sun::star::lang::IllegalArgumentException,
+                ::com::sun::star::io::IOException,
+                ::com::sun::star::uno::Exception );
+
+    /** allows to switch the document to the provided storage.
+     */
+    void switchToStorage( [in] ::com::sun::star::embed::XStorage xStorage )
+        raises( ::com::sun::star::lang::IllegalArgumentException,
+                ::com::sun::star::io::IOException,
+                ::com::sun::star::uno::Exception );
+
+
+    /** allows to get the storage the document is based on.
+     */
+    ::com::sun::star::embed::XStorage getDocumentStorage()
+        raises( ::com::sun::star::io::IOException,
+                ::com::sun::star::uno::Exception );
+
+    /** allows to register a listener that will be notified when another
+        storage is set to the document.
+     */
+    void addStorageChangeListener( [in] XStorageChangeListener xListener );
+
+    /** allows to deregister the listener.
+     */
+    void removeStorageChangeListener( [in] XStorageChangeListener xListener );
+
+};
+
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */