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diff --git a/dbaccess/source/ui/inc/defaultobjectnamecheck.hxx b/dbaccess/source/ui/inc/defaultobjectnamecheck.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_UI_INC_DEFAULTOBJECTNAMECHECK_HXX
+#define INCLUDED_DBACCESS_SOURCE_UI_INC_DEFAULTOBJECTNAMECHECK_HXX
+
+#include "objectnamecheck.hxx"
+
+#include <com/sun/star/container/XHierarchicalNameAccess.hpp>
+#include <com/sun/star/sdbc/XConnection.hpp>
+
+#include <memory>
+
+namespace dbaui
+{
+
+    // HierarchicalNameCheck
+    struct HierarchicalNameCheck_Impl;
+    /** class implementing the IObjectNameCheck interface, and checking given object names
+        against a hierarchical name container
+    */
+    class HierarchicalNameCheck :public IObjectNameCheck
+    {
+    private:
+        std::unique_ptr< HierarchicalNameCheck_Impl > m_pImpl;
+
+    public:
+        /** constructs a HierarchicalNameCheck instance
+        @param _rxNames
+            the hierarchical container of named objects, against which given names should be
+            checked
+        @param _rRelativeRoot
+            the root in the hierarchy against which given names should be checked
+        @throws css::lang::IllegalArgumentException
+            if the given container is <NULL/>
+        */
+        HierarchicalNameCheck(
+            const css::uno::Reference< css::container::XHierarchicalNameAccess >& _rxNames,
+            const OUString& _rRelativeRoot
+        );
+
+        virtual ~HierarchicalNameCheck() override;
+
+        HierarchicalNameCheck(const HierarchicalNameCheck&) = delete;
+        const HierarchicalNameCheck& operator=(const HierarchicalNameCheck&) = delete;
+
+        // IObjectNameCheck overridables
+        virtual bool    isNameValid(
+            const OUString& _rObjectName,
+            ::dbtools::SQLExceptionInfo& _out_rErrorToDisplay
+        ) const override;
+    };
+
+    // DynamicTableOrQueryNameCheck
+    struct DynamicTableOrQueryNameCheck_Impl;
+    /** class implementing the IObjectNameCheck interface, and checking a given name
+        for being valid as either a query or a table name.
+
+        The class can be parametrized to act as either table name or query name validator.
+
+        For databases which support queries in queries, the name check is implicitly extended
+        to both queries and tables, no matter which category is checked. This prevents, for
+        such databases, that users can create a query with the name of an existing table,
+        or vice versa.
+
+        @seealso dbtools::DatabaseMetaData::supportsSubqueriesInFrom
+        @seealso css::sdb::tools::XObjectNames::checkNameForCreate
+    */
+    class DynamicTableOrQueryNameCheck  :public IObjectNameCheck
+    {
+    private:
+        std::unique_ptr< DynamicTableOrQueryNameCheck_Impl > m_pImpl;
+
+    public:
+        /** constructs a DynamicTableOrQueryNameCheck instance
+        @param _rxSdbLevelConnection
+            a connection supporting the css.sdb.Connection service, in other word, it
+            does expose the XTablesSupplier and XQueriesSupplier interfaces.
+        @param _nCommandType
+            specifies whether table names or query names should be checked. Only valid values
+            are CommandType::TABLE and CommandType::QUERY.
+        @throws css::lang::IllegalArgumentException
+            if the given connection is <NULL/>, or the given command type is neither
+            CommandType::TABLE nor CommandType::QUERY.
+        */
+        DynamicTableOrQueryNameCheck(
+            const css::uno::Reference< css::sdbc::XConnection >& _rxSdbLevelConnection,
+            sal_Int32 _nCommandType
+        );
+
+        virtual ~DynamicTableOrQueryNameCheck() override;
+
+        DynamicTableOrQueryNameCheck(const DynamicTableOrQueryNameCheck&) = delete;
+        const DynamicTableOrQueryNameCheck& operator=(const DynamicTableOrQueryNameCheck&) = delete;
+
+        // IObjectNameCheck overridables
+        virtual bool    isNameValid(
+            const OUString& _rObjectName,
+            ::dbtools::SQLExceptionInfo& _out_rErrorToDisplay
+        ) const override;
+    };
+
+} // namespace dbaui
+
+#endif // INCLUDED_DBACCESS_SOURCE_UI_INC_DEFAULTOBJECTNAMECHECK_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */