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diff --git a/reportdesign/source/core/inc/Functions.hxx b/reportdesign/source/core/inc/Functions.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_REPORTDESIGN_SOURCE_CORE_INC_FUNCTIONS_HXX
+#define INCLUDED_REPORTDESIGN_SOURCE_CORE_INC_FUNCTIONS_HXX
+
+#include <com/sun/star/report/XFunctions.hpp>
+#include <com/sun/star/report/XFunctionsSupplier.hpp>
+#include <cppuhelper/compbase.hxx>
+#include <comphelper/interfacecontainer3.hxx>
+#include <cppuhelper/basemutex.hxx>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <vector>
+
+
+namespace reportdesign
+{
+    typedef ::cppu::WeakComponentImplHelper< css::report::XFunctions> FunctionsBase;
+    /** \class OFunctions Defines the implementation of a \interface com:::sun::star::report::XFunctions
+     * \ingroup reportdesign_api
+     *
+     */
+    class OFunctions : public cppu::BaseMutex,
+                    public FunctionsBase
+    {
+        typedef ::std::vector< css::uno::Reference< css::report::XFunction > >  TFunctions;
+        ::comphelper::OInterfaceContainerHelper3<css::container::XContainerListener> m_aContainerListeners;
+        css::uno::Reference< css::uno::XComponentContext >            m_xContext;
+        css::uno::WeakReference< css::report::XFunctionsSupplier >    m_xParent;
+        TFunctions                                                    m_aFunctions;
+    private:
+        OFunctions& operator=(const OFunctions&) = delete;
+        OFunctions(const OFunctions&) = delete;
+        void checkIndex(sal_Int32 _nIndex);
+    protected:
+        // TODO: VirtualFunctionFinder: This is virtual function!
+
+        virtual ~OFunctions() override;
+
+        /** this function is called upon disposing the component
+        */
+        // TODO: VirtualFunctionFinder: This is virtual function!
+
+        virtual void SAL_CALL disposing() override;
+    public:
+        explicit OFunctions( const css::uno::Reference< css::report::XFunctionsSupplier >& _xParent
+                ,const css::uno::Reference< css::uno::XComponentContext >& context);
+
+    // XFunctions
+        // Methods
+        virtual css::uno::Reference< css::report::XFunction > SAL_CALL createFunction(  ) override;
+    // XIndexContainer
+        virtual void SAL_CALL insertByIndex( ::sal_Int32 Index, const css::uno::Any& Element ) override;
+        virtual void SAL_CALL removeByIndex( ::sal_Int32 Index ) override;
+    // XIndexReplace
+        virtual void SAL_CALL replaceByIndex( ::sal_Int32 Index, const css::uno::Any& Element ) override;
+    // XIndexAccess
+        virtual ::sal_Int32 SAL_CALL getCount(  ) override;
+        virtual css::uno::Any SAL_CALL getByIndex( ::sal_Int32 Index ) override;
+    // XElementAccess
+        virtual css::uno::Type SAL_CALL getElementType(  ) override;
+        virtual sal_Bool SAL_CALL hasElements(  ) override;
+    // XChild
+        virtual css::uno::Reference< css::uno::XInterface > SAL_CALL getParent(  ) override;
+        virtual void SAL_CALL setParent( const css::uno::Reference< css::uno::XInterface >& Parent ) override;
+    // XContainer
+        virtual void SAL_CALL addContainerListener( const css::uno::Reference< css::container::XContainerListener >& xListener ) override;
+        virtual void SAL_CALL removeContainerListener( const css::uno::Reference< css::container::XContainerListener >& xListener ) override;
+
+        // XComponent
+        virtual void SAL_CALL dispose() override;
+        virtual void SAL_CALL addEventListener(const css::uno::Reference< css::lang::XEventListener > & aListener) override
+        {
+            cppu::WeakComponentImplHelperBase::addEventListener(aListener);
+        }
+        virtual void SAL_CALL removeEventListener(const css::uno::Reference< css::lang::XEventListener > & aListener) override
+        {
+            cppu::WeakComponentImplHelperBase::removeEventListener(aListener);
+        }
+    };
+}
+#endif // INCLUDED_REPORTDESIGN_SOURCE_CORE_INC_FUNCTIONS_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */