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diff --git a/configmgr/source/nodemap.hxx b/configmgr/source/nodemap.hxx
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+++ b/configmgr/source/nodemap.hxx
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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 INCLUDED_CONFIGMGR_SOURCE_NODEMAP_HXX
+#define INCLUDED_CONFIGMGR_SOURCE_NODEMAP_HXX
+
+#include <sal/config.h>
+#include "config_map.hxx"
+#include <rtl/ref.hxx>
+#include "node.hxx"
+
+namespace configmgr {
+
+typedef config_map< rtl::Reference< Node > > NodeMapImpl;
+class NodeMap
+{
+    NodeMapImpl maImpl;
+
+    NodeMap(const NodeMap &rMap) = delete;
+
+  public:
+    typedef NodeMapImpl::iterator iterator;
+    typedef NodeMapImpl::const_iterator const_iterator;
+    typedef NodeMapImpl::value_type value_type;
+
+    NodeMap() { clearCache(); }
+    bool empty() const { return maImpl.empty(); }
+    iterator find(const OUString &aStr) { return maImpl.find( aStr ); }
+
+    const_iterator find(const OUString &aStr) const { return maImpl.find( aStr ); }
+    iterator begin() { return maImpl.begin(); }
+    const_iterator begin() const { return maImpl.begin(); }
+
+    iterator end() { return maImpl.end(); }
+    const_iterator end() const { return maImpl.end(); }
+
+    rtl::Reference<Node> &operator[](const OUString &aStr) { clearCache(); return maImpl[aStr]; }
+    std::pair<iterator,bool> insert(const value_type &vt) { clearCache(); return maImpl.insert(vt); }
+    void erase(const iterator &it) { maImpl.erase(it); clearCache(); }
+    void erase(const OUString &aStr) { maImpl.erase(aStr); clearCache(); }
+
+    rtl::Reference< Node > findNode(int layer, OUString const & name) const;
+    void cloneInto(NodeMap * target) const;
+
+private:
+    // We get a large number of repeated identical lookups.
+    mutable const_iterator maCache;
+    void clearCache() { maCache = maImpl.end(); }
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */