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>

1 files changed, 60 insertions, 0 deletions

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: */