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diff --git a/dbaccess/source/core/api/OptimisticSet.hxx b/dbaccess/source/core/api/OptimisticSet.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_DBACCESS_SOURCE_CORE_API_OPTIMISTICSET_HXX
+#define INCLUDED_DBACCESS_SOURCE_CORE_API_OPTIMISTICSET_HXX
+
+#include "KeySet.hxx"
+
+#include <connectivity/sqlparse.hxx>
+#include <connectivity/sqliterator.hxx>
+
+#include <com/sun/star/sdb/XSingleSelectQueryAnalyzer.hpp>
+
+namespace dbaccess
+{
+     // is used when the source supports keys
+    class OptimisticSet : public OKeySet
+    {
+        ::connectivity::OSQLParser                              m_aSqlParser;
+        ::connectivity::OSQLParseTreeIterator                   m_aSqlIterator;
+
+        std::map<sal_Int32,sal_Int32>                         m_aJoinedColumns;
+        std::map<sal_Int32,sal_Int32>                         m_aJoinedKeyColumns;
+
+        mutable bool m_bResultSetChanged;
+
+        void executeDelete(const ORowSetRow& _rDeleteRow,const OUString& i_sSQL,const OUString& i_sTableName);
+        void fillJoinedColumns_throw(const std::vector< ::connectivity::TNodePair>& i_aJoinColumns);
+        void fillJoinedColumns_throw(const OUString& i_sLeftColumn,const OUString& i_sRightColumn);
+    protected:
+        virtual void makeNewStatement( ) override;
+        virtual ~OptimisticSet() override;
+    public:
+        OptimisticSet(const css::uno::Reference< css::uno::XComponentContext>& _rContext,
+                      const css::uno::Reference< css::sdbc::XConnection>& i_xConnection,
+                      const css::uno::Reference< css::sdb::XSingleSelectQueryAnalyzer >& _xComposer,
+                      const ORowSetValueVector& _aParameterValueForCache,
+                      sal_Int32 i_nMaxRows,
+                      sal_Int32& o_nRowCount);
+
+        // late ctor which can throw exceptions
+        virtual void construct(const css::uno::Reference< css::sdbc::XResultSet>& _xDriverSet,const OUString& i_sRowSetFilter) override;
+
+        // css::sdbc::XResultSetUpdate
+        virtual void updateRow(const ORowSetRow& _rInsertRow,const ORowSetRow& _rOriginalRow,const connectivity::OSQLTable& _xTable   ) override;
+        virtual void deleteRow(const ORowSetRow& _rInsertRow,const connectivity::OSQLTable& _xTable   ) override;
+        virtual void insertRow( const ORowSetRow& _rInsertRow,const connectivity::OSQLTable& _xTable ) override;
+
+        // CacheSet
+        virtual bool isResultSetChanged() const override;
+        virtual void mergeColumnValues(sal_Int32 i_nColumnIndex,ORowSetValueVector::Vector& io_aInsertRow,ORowSetValueVector::Vector& io_aRow,std::vector<sal_Int32>& o_aChangedColumns) override;
+        virtual bool columnValuesUpdated(ORowSetValueVector::Vector& o_aCachedRow,const ORowSetValueVector::Vector& i_aRow) override;
+        virtual bool updateColumnValues(const ORowSetValueVector::Vector& io_aCachedRow,ORowSetValueVector::Vector& io_aRow,const std::vector<sal_Int32>& i_aChangedColumns) override;
+        virtual void fillMissingValues(ORowSetValueVector::Vector& io_aRow) const override;
+
+        bool isReadOnly() const { return m_aJoinedKeyColumns.empty(); }
+        const std::map<sal_Int32,sal_Int32>& getJoinedKeyColumns() const { return m_aJoinedKeyColumns; }
+    };
+}
+#endif // INCLUDED_DBACCESS_SOURCE_CORE_API_OPTIMISTICSET_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */