--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Core/SQLite/Transaction.h	Thu Jul 19 14:32:22 2012 +0200
@@ -0,0 +1,58 @@
+/**
+ * Palantir - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
+ * Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "Connection.h"
+
+namespace Palantir
+{
+  namespace SQLite
+  {
+    class Transaction : public boost::noncopyable
+    {
+    private:
+      Connection& connection_;
+
+      // True when the transaction is open, false when it's already been committed
+      // or rolled back.
+      bool isOpen_;
+
+    public:
+      explicit Transaction(Connection& connection);
+      ~Transaction();
+
+      // Returns true when there is a transaction that has been successfully begun.
+      bool IsOpen() const { return isOpen_; }
+
+      // Begins the transaction. This uses the default sqlite "deferred" transaction
+      // type, which means that the DB lock is lazily acquired the next time the
+      // database is accessed, not in the begin transaction command.
+      void Begin();
+
+      // Rolls back the transaction. This will happen automatically if you do
+      // nothing when the transaction goes out of scope.
+      void Rollback();
+
+      // Commits the transaction, returning true on success.
+      void Commit();
+    };
+  }
+}