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diff --git a/offapi/com/sun/star/util/XLockable.idl b/offapi/com/sun/star/util/XLockable.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_util_XLockable_idl__
+#define __com_sun_star_util_XLockable_idl__
+
+#include <com/sun/star/util/NotLockedException.idl>
+
+//==================================================================================================================
+
+module com { module sun { module star { module util {
+
+//==================================================================================================================
+
+/** allows locking a component
+
+    <p><code>lock</code> and <code>unlock</code> calls can be nested. However, they must be in
+    pairs. As long as there has been one more call to <code>lock</code> than to <code>unlock</code>, the
+    component is considered locked, which is reflected by <member>isLocked</member> returning <TRUE/>.</p>
+ */
+interface XLockable
+{
+    /** locks</a> the component
+
+        @see unlock
+        @see isLocked
+    */
+    void    lock();
+
+    /** unlocks the component
+
+        @throws NotLockedException
+            if the component is not currently locked.
+
+        @see lock
+        @see isLocked
+    */
+    void    unlock()
+        raises  (   NotLockedException
+                );
+
+    /** determines whether the component is currently locked.
+
+        @see lock
+        @see unlock
+    */
+    boolean isLocked();
+};
+
+//==================================================================================================================
+
+}; }; }; };
+
+//==================================================================================================================
+
+#endif