Revert "Remove dead HSQLDB driver"

We cannot silently convert user data or their used file formats
and then await them to accept it or reinstall an older version.

Let us make a soft change instead of an hard (heart) break
and avoid us to been attacked with fire and forks from our users.

This reverts commit 8d381ae8d6c742a7e15bf7ad9e07b65f81728ef6.

Change-Id: Ia153640935e355771acb85cf652f8fe4c21fafbb
Reviewed-on: https://gerrit.libreoffice.org/52731
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tamás Bunth <btomi96@gmail.com>

13 files changed, 1051 insertions, 0 deletions

diff --git a/connectivity/source/inc/hsqldb/HCatalog.hxx b/connectivity/source/inc/hsqldb/HCatalog.hxx
new file mode 100644
index 000000000000..f953c9f30ae1
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HCatalog.hxx
@@ -0,0 +1,64 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HCATALOG_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HCATALOG_HXX
+
+#include <connectivity/sdbcx/VCatalog.hxx>
+
+namespace connectivity
+{
+    namespace hsqldb
+    {
+        // please don't name the class the same name as in an other namespaces
+        // some compilers have problems with this task as I noticed on windows
+        class OHCatalog : public connectivity::sdbcx::OCatalog
+        {
+            css::uno::Reference< css::sdbc::XConnection > m_xConnection;
+
+            /** calls XDatabaseMetaData::getTables.
+                @param  _sKindOfObject
+                    The type of tables to be fetched.
+                @param  _rNames
+                    The container for the names to be filled.
+            */
+            void refreshObjects(const css::uno::Sequence< OUString >& _sKindOfObject,::std::vector< OUString>& _rNames);
+
+        public:
+            // implementation of the pure virtual methods
+            virtual void refreshTables() override;
+            virtual void refreshViews() override ;
+            virtual void refreshGroups() override;
+            virtual void refreshUsers() override ;
+
+        public:
+            OHCatalog(const css::uno::Reference< css::sdbc::XConnection >& _xConnection);
+
+            sdbcx::OCollection*      getPrivateTables()  const { return m_pTables.get(); }
+            sdbcx::OCollection*      getPrivateViews()   const { return m_pViews.get(); }
+            const css::uno::Reference< css::sdbc::XConnection >& getConnection() const { return m_xConnection; }
+
+            virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) override;
+            // ::cppu::OComponentHelper
+            virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
+        };
+    }
+}
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HCATALOG_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HColumns.hxx b/connectivity/source/inc/hsqldb/HColumns.hxx
new file mode 100644
index 000000000000..f3fd008cd92f
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HColumns.hxx
@@ -0,0 +1,60 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HCOLUMNS_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HCOLUMNS_HXX
+#include <connectivity/TColumnsHelper.hxx>
+#include <connectivity/sdbcx/VColumn.hxx>
+
+namespace connectivity
+{
+    namespace hsqldb
+    {
+        class OHSQLColumns : public OColumnsHelper
+        {
+        protected:
+            virtual css::uno::Reference< css::beans::XPropertySet > createDescriptor() override;
+        public:
+            OHSQLColumns(   ::cppu::OWeakObject& _rParent
+                            ,::osl::Mutex& _rMutex
+                            ,const ::std::vector< OUString> &_rVector
+                        );
+        };
+
+        class OHSQLColumn;
+        typedef ::comphelper::OIdPropertyArrayUsageHelper<OHSQLColumn> OHSQLColumn_PROP;
+
+        class OHSQLColumn : public sdbcx::OColumn,
+                                public OHSQLColumn_PROP
+        {
+            OUString m_sAutoIncrement;
+        protected:
+            virtual ::cppu::IPropertyArrayHelper* createArrayHelper( sal_Int32 _nId) const override;
+            virtual ::cppu::IPropertyArrayHelper & SAL_CALL getInfoHelper() override;
+
+        public:
+            OHSQLColumn();
+            virtual void construct() override;
+
+            virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
+        };
+    }
+}
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HCOLUMNS_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HConnection.hxx b/connectivity/source/inc/hsqldb/HConnection.hxx
new file mode 100644
index 000000000000..19739437bf82
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HConnection.hxx
@@ -0,0 +1,150 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HCONNECTION_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HCONNECTION_HXX
+
+#include <connectivity/ConnectionWrapper.hxx>
+#include <com/sun/star/util/XFlushable.hpp>
+#include <com/sun/star/sdbc/XDriver.hpp>
+#include <com/sun/star/sdb/application/XTableUIProvider.hpp>
+#include <com/sun/star/ui/dialogs/XExecutableDialog.hpp>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/basemutex.hxx>
+#include <comphelper/uno3.hxx>
+#include <comphelper/interfacecontainer2.hxx>
+
+namespace connectivity
+{
+    namespace hsqldb
+    {
+        class SAL_NO_VTABLE IMethodGuardAccess
+        {
+        public:
+            virtual ::osl::Mutex&   getMutex() const = 0;
+            virtual void            checkDisposed() const = 0;
+
+        protected:
+            ~IMethodGuardAccess() {}
+        };
+
+
+        // OHsqlConnection - wraps all methods to the real connection from the driver
+        // but when disposed it doesn't dispose the real connection
+
+        typedef ::cppu::WeakComponentImplHelper<   css::util::XFlushable
+                                               ,   css::sdb::application::XTableUIProvider
+                                               >   OHsqlConnection_BASE;
+
+        class OHsqlConnection   :public cppu::BaseMutex
+                                ,public OHsqlConnection_BASE
+                                ,public OConnectionWrapper
+                                ,public IMethodGuardAccess
+        {
+        private:
+            ::comphelper::OInterfaceContainerHelper2                          m_aFlushListeners;
+            css::uno::Reference< css::sdbc::XDriver >                         m_xDriver;
+            css::uno::Reference< css::uno::XComponentContext >                m_xContext;
+            bool                                                              m_bIni;
+            bool                                                              m_bReadOnly;
+
+        protected:
+            virtual void SAL_CALL disposing() override;
+            virtual ~OHsqlConnection() override;
+
+        public:
+            OHsqlConnection(
+                const css::uno::Reference< css::sdbc::XDriver >& _rxDriver,
+                const css::uno::Reference< css::sdbc::XConnection >& _xConnection,
+                const css::uno::Reference< css::uno::XComponentContext>& _rxContext
+            );
+
+            // XServiceInfo
+            DECLARE_SERVICE_INFO();
+            DECLARE_XTYPEPROVIDER()
+            DECLARE_XINTERFACE( )
+
+            // IMethodGuardAccess
+            virtual ::osl::Mutex&   getMutex() const override;
+            virtual void            checkDisposed() const override;
+
+            // XFlushable
+            virtual void SAL_CALL flush(  ) override;
+            virtual void SAL_CALL addFlushListener( const css::uno::Reference< css::util::XFlushListener >& l ) override;
+            virtual void SAL_CALL removeFlushListener( const css::uno::Reference< css::util::XFlushListener >& l ) override;
+
+            // XTableUIProvider
+            virtual css::uno::Reference< css::graphic::XGraphic > SAL_CALL getTableIcon( const OUString& TableName, ::sal_Int32 ColorMode ) override;
+            virtual css::uno::Reference< css::uno::XInterface > SAL_CALL getTableEditor( const css::uno::Reference< css::sdb::application::XDatabaseDocumentUI >& DocumentUI, const OUString& TableName ) override;
+
+        private:
+
+            /** retrieves our table container
+                @return
+                    our table container. Guaranteed to not be <NULL/>.
+                @throws css::lang::WrappedTargetException
+                    if a non-RuntimeException is caught during obtaining the container.
+                @throws css::uno::RuntimeException
+                    if a serious error occurs
+                @precond
+                    We're not disposed.
+            */
+            css::uno::Reference< css::container::XNameAccess >
+                    impl_getTableContainer_throw();
+
+            /** checks whether the given table name denotes an existing table
+                @param _rTableName
+                    the fully name of the table to check for existence
+                @throws css::lang::IllegalArgumentException
+                    if the name does not denote an existing table
+                @precond
+                    We're not disposed.
+            */
+            void    impl_checkExistingTable_throw( const OUString& _rTableName );
+
+            /** checks whether the given table name refers to a HSQL TEXT TABLE
+            */
+            bool    impl_isTextTable_nothrow( const OUString& _rTableName );
+
+            /** retrieves the icon for HSQL TEXT TABLEs
+            */
+            css::uno::Reference< css::graphic::XGraphic >
+                impl_getTextTableIcon_nothrow();
+        };
+
+
+        // OHsqlConnection
+
+        class MethodGuard : public ::osl::MutexGuard
+        {
+        private:
+            typedef ::osl::MutexGuard   BaseGuard;
+
+        public:
+            MethodGuard( const IMethodGuardAccess& _rComponent )
+                :BaseGuard( _rComponent.getMutex() )
+            {
+                _rComponent.checkDisposed();
+            }
+        };
+    }
+}
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HCONNECTION_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HDriver.hxx b/connectivity/source/inc/hsqldb/HDriver.hxx
new file mode 100644
index 000000000000..b88e1227de1c
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HDriver.hxx
@@ -0,0 +1,140 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HDRIVER_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HDRIVER_HXX
+
+#include <com/sun/star/sdbc/XDriver.hpp>
+#include <com/sun/star/sdbcx/XDataDefinitionSupplier.hpp>
+#include <com/sun/star/sdbcx/XCreateCatalog.hpp>
+#include <com/sun/star/embed/XTransactionListener.hpp>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/basemutex.hxx>
+#include <comphelper/uno3.hxx>
+#include <connectivity/CommonTools.hxx>
+
+
+namespace connectivity
+{
+
+
+    namespace hsqldb
+    {
+        /// @throws css::uno::Exception
+        css::uno::Reference< css::uno::XInterface > ODriverDelegator_CreateInstance(const css::uno::Reference< css::lang::XMultiServiceFactory >& _rxFactory);
+
+        typedef ::cppu::WeakComponentImplHelper<   css::sdbc::XDriver
+                                                 , css::sdbcx::XDataDefinitionSupplier
+                                                 , css::lang::XServiceInfo
+                                                 , css::sdbcx::XCreateCatalog
+                                                 , css::embed::XTransactionListener
+                                               >   ODriverDelegator_BASE;
+
+        typedef std::pair< css::uno::WeakReferenceHelper,css::uno::WeakReferenceHelper> TWeakRefPair;
+        typedef std::pair< OUString ,TWeakRefPair > TWeakConnectionPair;
+
+        typedef std::pair< css::uno::WeakReferenceHelper,TWeakConnectionPair> TWeakPair;
+        typedef std::vector< TWeakPair > TWeakPairVector;
+
+
+        /** delegates all calls to the original driver and extend the existing one with the SDBCX layer.
+
+        */
+        class ODriverDelegator final : public ::cppu::BaseMutex
+                                ,public ODriverDelegator_BASE
+        {
+            TWeakPairVector                                           m_aConnections; //  vector containing a list
+                                                                                      //  of all the Connection objects
+                                                                                      //  for this Driver
+            css::uno::Reference< css::sdbc::XDriver >                 m_xDriver;
+            css::uno::Reference< css::uno::XComponentContext >        m_xContext;
+            bool                                                      m_bInShutDownConnections;
+
+            /** load the driver we want to delegate.
+                The <member>m_xDriver</member> may be <NULL/> if the driver could not be loaded.
+                @return
+                    The driver which was currently selected.
+            */
+            css::uno::Reference< css::sdbc::XDriver > const & loadDriver( );
+
+            /** shut down the connection and revoke the storage from the map
+                @param  _aIter
+                    The connection to shut down and storage to revoke.
+            */
+            void shutdownConnection(const TWeakPairVector::iterator& _aIter);
+
+        public:
+            /** creates a new delegator for a HSQLDB driver
+            */
+            ODriverDelegator(const css::uno::Reference< css::uno::XComponentContext >& _rxContext);
+
+            // XServiceInfo
+            DECLARE_SERVICE_INFO();
+            /// @throws css::uno::RuntimeException
+            static OUString getImplementationName_Static(  );
+            /// @throws css::uno::RuntimeException
+            static css::uno::Sequence< OUString > getSupportedServiceNames_Static(  );
+
+            // XDriver
+            virtual css::uno::Reference< css::sdbc::XConnection > SAL_CALL connect( const OUString& url, const css::uno::Sequence< css::beans::PropertyValue >& info ) override;
+            virtual sal_Bool SAL_CALL acceptsURL( const OUString& url ) override;
+            virtual css::uno::Sequence< css::sdbc::DriverPropertyInfo > SAL_CALL getPropertyInfo( const OUString& url, const css::uno::Sequence< css::beans::PropertyValue >& info ) override;
+            virtual sal_Int32 SAL_CALL getMajorVersion(  ) override;
+            virtual sal_Int32 SAL_CALL getMinorVersion(  ) override;
+
+            // XDataDefinitionSupplier
+            virtual css::uno::Reference< css::sdbcx::XTablesSupplier > SAL_CALL getDataDefinitionByConnection( const css::uno::Reference< css::sdbc::XConnection >& connection ) override;
+            virtual css::uno::Reference< css::sdbcx::XTablesSupplier > SAL_CALL getDataDefinitionByURL( const OUString& url, const css::uno::Sequence< css::beans::PropertyValue >& info ) override;
+
+            // XCreateCatalog
+            virtual void SAL_CALL createCatalog( const css::uno::Sequence< css::beans::PropertyValue >& info ) override;
+
+            // XEventListener
+            virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
+
+            // XTransactionListener
+            virtual void SAL_CALL preCommit( const css::lang::EventObject& aEvent ) override;
+            virtual void SAL_CALL commited( const css::lang::EventObject& aEvent ) override;
+            virtual void SAL_CALL preRevert( const css::lang::EventObject& aEvent ) override;
+            virtual void SAL_CALL reverted( const css::lang::EventObject& aEvent ) override;
+
+            void shutdownConnections();
+            void flushConnections();
+        private:
+            /// dtor
+            virtual ~ODriverDelegator() override;
+            // OComponentHelper
+            virtual void SAL_CALL disposing() override;
+
+            /** called when we connected to a newly created embedded database
+            */
+            void onConnectedNewDatabase(
+                const css::uno::Reference< css::sdbc::XConnection >& _rxConnection
+            );
+        };
+    }
+
+
+}   // namespace connectivity
+
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HDRIVER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HStorageAccess.hxx b/connectivity/source/inc/hsqldb/HStorageAccess.hxx
new file mode 100644
index 000000000000..c0ae65541530
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HStorageAccess.hxx
@@ -0,0 +1,39 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HSTORAGEACCESS_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HSTORAGEACCESS_HXX
+
+#include <sal/config.h>
+
+#include <jni.h>
+
+namespace connectivity { namespace hsqldb
+{
+    class DataLogFile;
+} }
+
+jint read_from_storage_stream( JNIEnv * env, jstring name, jstring key );
+jint read_from_storage_stream_into_buffer( JNIEnv * env, jstring name, jstring key, jbyteArray buffer, jint off, jint len );
+void write_to_storage_stream_from_buffer( JNIEnv* env, jstring name, jstring key, jbyteArray buffer, jint off, jint len );
+void write_to_storage_stream( JNIEnv* env, jstring name, jstring key, jint v );
+
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HSTORAGEACCESS_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HStorageMap.hxx b/connectivity/source/inc/hsqldb/HStorageMap.hxx
new file mode 100644
index 000000000000..62ae7ec3d233
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HStorageMap.hxx
@@ -0,0 +1,97 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HSTORAGEMAP_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HSTORAGEMAP_HXX
+
+#include <sal/config.h>
+
+#include <map>
+#include <memory>
+
+#include <com/sun/star/embed/XStorage.hpp>
+#include <com/sun/star/embed/XTransactionListener.hpp>
+#include <com/sun/star/io/XStream.hpp>
+#include <com/sun/star/io/XOutputStream.hpp>
+#include <com/sun/star/io/XInputStream.hpp>
+#include <com/sun/star/io/XSeekable.hpp>
+#include <jni.h>
+#include <uno/environment.hxx>
+
+namespace connectivity
+{
+
+    namespace hsqldb
+    {
+        class StreamHelper
+        {
+            css::uno::Reference< css::io::XStream>        m_xStream;
+            css::uno::Reference< css::io::XSeekable>      m_xSeek;
+            css::uno::Reference< css::io::XOutputStream>  m_xOutputStream;
+            css::uno::Reference< css::io::XInputStream>   m_xInputStream;
+        public:
+            StreamHelper(const css::uno::Reference< css::io::XStream>& _xStream);
+            ~StreamHelper();
+
+            css::uno::Reference< css::io::XInputStream> const &   getInputStream();
+            css::uno::Reference< css::io::XOutputStream> const &  getOutputStream();
+            css::uno::Reference< css::io::XSeekable> const &      getSeek();
+        };
+
+
+        typedef std::map< OUString, std::shared_ptr<StreamHelper> > TStreamMap;
+
+        struct StorageData {
+            css::uno::Reference<css::embed::XStorage> storage;
+            css::uno::Environment storageEnvironment;
+            OUString url;
+            TStreamMap streams;
+
+            css::uno::Reference<css::embed::XStorage> mapStorage() const;
+        };
+
+        typedef std::map<OUString, StorageData> TStorages;
+        /** contains all storages so far accessed.
+        */
+        class StorageContainer
+        {
+        public:
+            static OUString registerStorage(const css::uno::Reference< css::embed::XStorage>& _xStorage,const OUString& _sURL);
+            static TStorages::mapped_type getRegisteredStorage(const OUString& _sKey);
+            static OUString getRegisteredKey(const css::uno::Reference< css::embed::XStorage>& _xStorage);
+            static void revokeStorage(const OUString& _sKey,const css::uno::Reference< css::embed::XTransactionListener>& _xListener);
+
+            static TStreamMap::mapped_type registerStream(JNIEnv * env,jstring name, jstring key,sal_Int32 _nMode);
+            static void revokeStream(JNIEnv * env,jstring name, jstring key);
+            static TStreamMap::mapped_type getRegisteredStream( JNIEnv * env, jstring name, jstring key);
+
+            static OUString jstring2ustring(JNIEnv * env, jstring jstr);
+            static OUString removeURLPrefix(const OUString& _sURL,const OUString& _sFileURL);
+            static OUString removeOldURLPrefix(const OUString& _sURL);
+            static void throwJavaException(const css::uno::Exception& _aException,JNIEnv * env);
+        };
+
+    }   // namespace hsqldb
+
+
+}   // namespace connectivity
+
+
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HSTORAGEMAP_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HTable.hxx b/connectivity/source/inc/hsqldb/HTable.hxx
new file mode 100644
index 000000000000..b479039cc7b0
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HTable.hxx
@@ -0,0 +1,116 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HTABLE_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HTABLE_HXX
+
+#include <connectivity/TTableHelper.hxx>
+#include <com/sun/star/sdbc/XDatabaseMetaData.hpp>
+#include <comphelper/IdPropArrayHelper.hxx>
+
+namespace connectivity
+{
+    namespace hsqldb
+    {
+
+        class OHSQLTable;
+        typedef ::comphelper::OIdPropertyArrayUsageHelper< OHSQLTable > OHSQLTable_PROP;
+        class OHSQLTable :  public OTableHelper
+                            ,public OHSQLTable_PROP
+        {
+            sal_Int32 m_nPrivileges; // we have to set our privileges by our own
+
+            /** executes the statmenmt.
+                @param  _rStatement
+                    The statement to execute.
+                */
+            void executeStatement(const OUString& _rStatement );
+        protected:
+
+            /** creates the column collection for the table
+                @param  _rNames
+                    The column names.
+            */
+            virtual sdbcx::OCollection* createColumns(const ::std::vector< OUString>& _rNames) override;
+
+            /** creates the key collection for the table
+                @param  _rNames
+                    The key names.
+            */
+            virtual sdbcx::OCollection* createKeys(const ::std::vector< OUString>& _rNames) override;
+
+            /** creates the index collection for the table
+                @param  _rNames
+                    The index names.
+            */
+            virtual sdbcx::OCollection* createIndexes(const ::std::vector< OUString>& _rNames) override;
+
+            /** used to implement the creation of the array helper which is shared amongst all instances of the class.
+                This method needs to be implemented in derived classes.
+                <BR>
+                The method gets called with s_aMutex acquired.
+                @return                         an pointer to the newly created array helper. Must not be NULL.
+            */
+            virtual ::cppu::IPropertyArrayHelper* createArrayHelper(sal_Int32 nId) const override;
+            virtual ::cppu::IPropertyArrayHelper & SAL_CALL getInfoHelper() override;
+
+        public:
+            OHSQLTable( sdbcx::OCollection* _pTables,
+                            const css::uno::Reference< css::sdbc::XConnection >& _xConnection);
+            OHSQLTable( sdbcx::OCollection* _pTables,
+                            const css::uno::Reference< css::sdbc::XConnection >& _xConnection,
+                            const OUString& Name,
+                            const OUString& Type,
+                            const OUString& Description,
+                            const OUString& SchemaName,
+                            const OUString& CatalogName,
+                            sal_Int32 _nPrivileges
+                );
+
+            // ODescriptor
+            virtual void construct() override;
+            // css::lang::XUnoTunnel
+            virtual sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& aIdentifier ) override;
+            static css::uno::Sequence< sal_Int8 > getUnoTunnelImplementationId();
+
+            virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) override;
+            //XTypeProvider
+            virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
+            // XAlterTable
+            virtual void SAL_CALL alterColumnByName( const OUString& colName, const css::uno::Reference< css::beans::XPropertySet >& descriptor ) override;
+
+            // XRename
+            virtual void SAL_CALL rename( const OUString& newName ) override;
+
+            /**
+                returns the ALTER TABLE XXX COLUMN statement
+            */
+            OUString getAlterTableColumnPart();
+
+            // some methods to alter table structures
+            void alterColumnType(sal_Int32 nNewType,const OUString& _rColName,const css::uno::Reference< css::beans::XPropertySet >& _xDescriptor);
+            void alterDefaultValue(const OUString& _sNewDefault,const OUString& _rColName);
+            void dropDefaultValue(const OUString& _sNewDefault);
+
+        };
+    }
+}
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HTABLE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HTables.hxx b/connectivity/source/inc/hsqldb/HTables.hxx
new file mode 100644
index 000000000000..bf0580396df2
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HTables.hxx
@@ -0,0 +1,56 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HTABLES_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HTABLES_HXX
+
+#include <connectivity/sdbcx/VCollection.hxx>
+#include <com/sun/star/sdbc/XDatabaseMetaData.hpp>
+namespace connectivity
+{
+    namespace hsqldb
+    {
+        class OTables final : public sdbcx::OCollection
+        {
+            css::uno::Reference< css::sdbc::XDatabaseMetaData >       m_xMetaData;
+
+            virtual sdbcx::ObjectType createObject(const OUString& _rName) override;
+            virtual void impl_refresh() override;
+            virtual css::uno::Reference< css::beans::XPropertySet > createDescriptor() override;
+            virtual sdbcx::ObjectType appendObject( const OUString& _rForName, const css::uno::Reference< css::beans::XPropertySet >& descriptor ) override;
+            virtual void dropObject(sal_Int32 _nPos, const OUString& _sElementName) override;
+
+            void createTable( const css::uno::Reference< css::beans::XPropertySet >& descriptor );
+            virtual OUString getNameForObject(const sdbcx::ObjectType& _xObject) override;
+        public:
+            OTables(const css::uno::Reference< css::sdbc::XDatabaseMetaData >& _rMetaData,::cppu::OWeakObject& _rParent, ::osl::Mutex& _rMutex,
+                const ::std::vector< OUString> &_rVector) : sdbcx::OCollection(_rParent, true, _rMutex, _rVector)
+                ,m_xMetaData(_rMetaData)
+            {}
+
+            // only the name is identical to ::cppu::OComponentHelper
+            virtual void disposing() override;
+
+            // XDrop
+            void appendNew(const OUString& _rsNewTable);
+        };
+    }
+}
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HTABLES_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HTools.hxx b/connectivity/source/inc/hsqldb/HTools.hxx
new file mode 100644
index 000000000000..1c568ccc30cf
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HTools.hxx
@@ -0,0 +1,52 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HTOOLS_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HTOOLS_HXX
+
+#include <rtl/ustrbuf.hxx>
+
+
+namespace connectivity { namespace hsqldb
+{
+
+    class HTools
+    {
+    public:
+        /** appends a proper WHERE clause to the given buffer, which filters
+            for a given table name
+
+            @param _bShortForm
+                <TRUE/> if the column names of the system table which is being asked
+                have the short form (TABLE_CAT instead of TABLE_CATALOG, and so on)
+        */
+        static void appendTableFilterCrit(
+            OUStringBuffer& _inout_rBuffer, const OUString& _rCatalog,
+            const OUString& _rSchema, const OUString& _rName,
+            bool _bShortForm
+        );
+    };
+
+
+} } // namespace connectivity::hsqldb
+
+
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HTOOLS_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HUser.hxx b/connectivity/source/inc/hsqldb/HUser.hxx
new file mode 100644
index 000000000000..4e1e98c92290
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HUser.hxx
@@ -0,0 +1,77 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HUSER_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HUSER_HXX
+
+#include <connectivity/sdbcx/VUser.hxx>
+#include <com/sun/star/sdbc/XConnection.hpp>
+
+namespace connectivity
+{
+    namespace hsqldb
+    {
+        typedef connectivity::sdbcx::OUser OUser_TYPEDEF;
+
+        class OHSQLUser : public OUser_TYPEDEF
+        {
+            css::uno::Reference< css::sdbc::XConnection > m_xConnection;
+
+            static OUString getPrivilegeString(sal_Int32 nRights);
+            // return the privileges and additional the grant rights
+            /// @throws css::sdbc::SQLException
+            /// @throws css::uno::RuntimeException
+            void findPrivilegesAndGrantPrivileges(const OUString& objName, sal_Int32 objType,sal_Int32& nRights,sal_Int32& nRightsWithGrant);
+        public:
+            virtual void refreshGroups() override;
+        public:
+            OHSQLUser(  const css::uno::Reference< css::sdbc::XConnection >& _xConnection);
+            OHSQLUser(  const css::uno::Reference< css::sdbc::XConnection >& _xConnection,const OUString& Name);
+
+            // XUser
+            virtual void SAL_CALL changePassword( const OUString& objPassword, const OUString& newPassword ) override;
+            // XAuthorizable
+            virtual sal_Int32 SAL_CALL getPrivileges( const OUString& objName, sal_Int32 objType ) override;
+            virtual sal_Int32 SAL_CALL getGrantablePrivileges( const OUString& objName, sal_Int32 objType ) override;
+            virtual void SAL_CALL grantPrivileges( const OUString& objName, sal_Int32 objType, sal_Int32 objPrivileges ) override;
+            virtual void SAL_CALL revokePrivileges( const OUString& objName, sal_Int32 objType, sal_Int32 objPrivileges ) override;
+        };
+
+        class OUserExtend;
+        typedef ::comphelper::OPropertyArrayUsageHelper<OUserExtend> OUserExtend_PROP;
+
+        class OUserExtend : public OHSQLUser,
+                            public OUserExtend_PROP
+        {
+        protected:
+            OUString m_Password;
+            // OPropertyArrayUsageHelper
+            virtual ::cppu::IPropertyArrayHelper* createArrayHelper() const override;
+            // OPropertySetHelper
+            virtual ::cppu::IPropertyArrayHelper & SAL_CALL getInfoHelper() override;
+        public:
+            OUserExtend(const css::uno::Reference< css::sdbc::XConnection >& _xConnection);
+
+            virtual void construct() override;
+        };
+    }
+}
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HUSER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HUsers.hxx b/connectivity/source/inc/hsqldb/HUsers.hxx
new file mode 100644
index 000000000000..392b3412a39b
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HUsers.hxx
@@ -0,0 +1,55 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HUSERS_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HUSERS_HXX
+
+#include <connectivity/sdbcx/VCollection.hxx>
+#include <com/sun/star/sdbc/XConnection.hpp>
+namespace connectivity
+{
+    namespace sdbcx
+    {
+        class IRefreshableUsers;
+    }
+    namespace hsqldb
+    {
+        class OUsers : public sdbcx::OCollection
+        {
+            css::uno::Reference< css::sdbc::XConnection > m_xConnection;
+            connectivity::sdbcx::IRefreshableUsers* m_pParent;
+        public:
+            virtual sdbcx::ObjectType createObject(const OUString& _rName) override;
+            virtual css::uno::Reference< css::beans::XPropertySet > createDescriptor() override;
+            virtual void impl_refresh() override;
+            virtual sdbcx::ObjectType appendObject( const OUString& _rForName, const css::uno::Reference< css::beans::XPropertySet >& descriptor ) override;
+            virtual void dropObject(sal_Int32 _nPos, const OUString& _sElementName) override;
+        public:
+            OUsers( ::cppu::OWeakObject& _rParent,
+                    ::osl::Mutex& _rMutex,
+                    const ::std::vector< OUString> &_rVector,
+                    const css::uno::Reference< css::sdbc::XConnection >& _xConnection,
+                    connectivity::sdbcx::IRefreshableUsers* _pParent);
+        };
+    }
+}
+
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HUSERS_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HView.hxx b/connectivity/source/inc/hsqldb/HView.hxx
new file mode 100644
index 000000000000..6e333bb1081d
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HView.hxx
@@ -0,0 +1,90 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HVIEW_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HVIEW_HXX
+
+#include <connectivity/sdbcx/VView.hxx>
+
+#include <com/sun/star/sdbcx/XAlterView.hpp>
+
+#include <comphelper/uno3.hxx>
+#include <cppuhelper/implbase1.hxx>
+
+
+namespace connectivity { namespace hsqldb
+{
+
+    typedef ::connectivity::sdbcx::OView                   HView_Base;
+    typedef ::cppu::ImplHelper1< css::sdbcx::XAlterView >  HView_IBASE;
+    class HView :public HView_Base
+                ,public HView_IBASE
+    {
+    public:
+        HView(
+            const css::uno::Reference< css::sdbc::XConnection >& _rxConnection,
+            bool _bCaseSensitive,
+            const OUString& _rSchemaName,
+            const OUString& _rName
+        );
+
+        // UNO
+        DECLARE_XINTERFACE()
+        DECLARE_XTYPEPROVIDER()
+
+        // XAlterView
+        virtual void SAL_CALL alterCommand( const OUString& NewCommand ) override;
+
+    protected:
+        virtual ~HView() override;
+
+    protected:
+        // OPropertyContainer
+        virtual void SAL_CALL getFastPropertyValue( css::uno::Any& _rValue, sal_Int32 _nHandle ) const override;
+
+    private:
+        /** retrieves the current command of the View */
+        OUString impl_getCommand() const;
+
+        /** retrieves the current command of the View
+
+            @throws css::lang::WrappedTargetException
+                if an error occurs while retrieving the command from the database.
+        */
+        OUString impl_getCommand_wrapSQLException() const;
+        /** retrieves the current command of the View
+
+            @throws css::sdbc::SQLException
+                if an error occurs while retrieving the command from the database.
+        */
+        OUString impl_getCommand_throwSQLException() const;
+
+    private:
+        css::uno::Reference< css::sdbc::XConnection > m_xConnection;
+    private:
+        using HView_Base::getFastPropertyValue;
+    };
+
+
+} } // namespace connectivity::hsqldb
+
+
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HVIEW_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/connectivity/source/inc/hsqldb/HViews.hxx b/connectivity/source/inc/hsqldb/HViews.hxx
new file mode 100644
index 000000000000..6f6724383e32
--- /dev/null
+++ b/connectivity/source/inc/hsqldb/HViews.hxx
@@ -0,0 +1,55 @@
+/* -*- 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_CONNECTIVITY_SOURCE_INC_HSQLDB_HVIEWS_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HVIEWS_HXX
+
+#include <connectivity/sdbcx/VCollection.hxx>
+#include <com/sun/star/sdbc/XDatabaseMetaData.hpp>
+namespace connectivity
+{
+    namespace hsqldb
+    {
+        class HViews final : public sdbcx::OCollection
+        {
+            css::uno::Reference< css::sdbc::XConnection >         m_xConnection;
+            css::uno::Reference< css::sdbc::XDatabaseMetaData >   m_xMetaData;
+            bool m_bInDrop;
+
+            virtual sdbcx::ObjectType createObject(const OUString& _rName) override;
+            virtual void impl_refresh() override;
+            virtual css::uno::Reference< css::beans::XPropertySet > createDescriptor() override;
+            virtual sdbcx::ObjectType appendObject( const OUString& _rForName, const css::uno::Reference< css::beans::XPropertySet >& descriptor ) override;
+            virtual void dropObject(sal_Int32 _nPos, const OUString& _sElementName) override;
+
+            void createView( const css::uno::Reference< css::beans::XPropertySet >& descriptor );
+        public:
+            HViews(
+                const css::uno::Reference< css::sdbc::XConnection >& _rxConnection,
+                ::cppu::OWeakObject& _rParent, ::osl::Mutex& _rMutex, const ::std::vector< OUString> &_rVector );
+
+            // only the name is identical to ::cppu::OComponentHelper
+            virtual void disposing() override;
+
+            void dropByNameImpl(const OUString& elementName);
+        };
+    }
+}
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_HSQLDB_HVIEWS_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */