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diff --git a/offapi/com/sun/star/configuration/backend/LayerUpdateMerger.idl b/offapi/com/sun/star/configuration/backend/LayerUpdateMerger.idl
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+#ifndef __com_sun_star_configuration_backend_LayerUpdateMerger_idl__
+#define __com_sun_star_configuration_backend_LayerUpdateMerger_idl__
+
+#ifndef __com_sun_star_lang_XInitialization_idl__
+#include <com/sun/star/lang/XInitialization.idl>
+#endif
+
+#ifndef __com_sun_star_configuration_backend_XUpdateHandler_idl__
+#include <com/sun/star/configuration/backend/XUpdateHandler.idl>
+#endif
+
+//=============================================================================
+
+module com { module sun { module star { module configuration { module backend {
+
+//=============================================================================
+
+/**
+    applies updates to a configuration layer.
+
+    <p> The configuration layer data is read from a <type>XLayer</type>
+    and the changed layer is provided as <type>XLayer</type> again or
+    described to a <type>XLayerHandler</type>.
+    </p>
+
+    @see com::sun::star::configuration::backend::UpdatableLayer
+        Service describes a layer and accepts a changed layer..
+
+    @since OOo 1.1.2
+*/
+published service LayerUpdateMerger
+{
+    //-------------------------------------------------------------------------
+
+    /** accepts events describing the changes.
+      */
+    interface com::sun::star::configuration::backend::XUpdateHandler ;
+
+    //-------------------------------------------------------------------------
+
+    /** allows initializing layer data source and target.
+
+        <p> Both source and target of the update can be provided by passing a
+            <type>XUpdatableLayer</type> object. Alternatively they can be
+            provided individually by providing a <type>XLayer</type> object as
+            data source and an <type>XLayerHandler</type> object to receive the
+            updated data.
+        </p>
+        <p> Implementations can provide more arguments to finetune the behavior.
+            Such arguments are provided as
+            <type scope="com::sun::star::beans">NamedValue</type>.
+            Implementations should support the following named arguments:
+        <dl>
+            <dt><code>Overwrite</code> : <atom>boolean</atom></dt>
+            <dd>If <FALSE/>, specifies that changes should be applied
+                only if the existing layer is empty.
+            </dd>
+            <dt><code>Truncate</code> : <atom>boolean</atom></dt>
+            <dd>If <TRUE/> requests that changes should not be merged onto
+                existing data, but that the changes should be applied
+                to a layer that is completely empty.
+            </dd>
+        </dl>
+        </p>
+      */
+    interface com::sun::star::lang::XInitialization ;
+
+    //-------------------------------------------------------------------------
+} ;
+
+//=============================================================================
+
+} ; } ; } ; } ; } ;
+
+#endif