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diff --git a/cpp/src/qpid/legacystore/jrnl/txn_rec.h b/cpp/src/qpid/legacystore/jrnl/txn_rec.h
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+++ b/cpp/src/qpid/legacystore/jrnl/txn_rec.h
@@ -0,0 +1,101 @@
+/*
+ *
+ * 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
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+/**
+ * \file txn_rec.h
+ *
+ * Qpid asynchronous store plugin library
+ *
+ * This file contains the code for the mrg::journal::txn_rec (journal data
+ * record) class. See class documentation for details.
+ *
+ * \author Kim van der Riet
+ */
+
+#ifndef QPID_LEGACYSTORE_JRNL_TXN_REC_H
+#define QPID_LEGACYSTORE_JRNL_TXN_REC_H
+
+namespace mrg
+{
+namespace journal
+{
+class txn_rec;
+}
+}
+
+#include <cstddef>
+#include "qpid/legacystore/jrnl/jrec.h"
+#include "qpid/legacystore/jrnl/txn_hdr.h"
+
+namespace mrg
+{
+namespace journal
+{
+
+    /**
+    * \class txn_rec
+    * \brief Class to handle a single journal DTX commit or abort record.
+    */
+    class txn_rec : public jrec
+    {
+    private:
+        txn_hdr _txn_hdr;       ///< transaction header
+        const void* _xidp;      ///< xid pointer for encoding (writing to disk)
+        void* _buff;            ///< Pointer to buffer to receive data read from disk
+        rec_tail _txn_tail;     ///< Record tail
+
+    public:
+        // constructor used for read operations and xid must have memory allocated
+        txn_rec();
+        // constructor used for write operations, where xid already exists
+        txn_rec(const u_int32_t magic, const u_int64_t rid, const void* const xidp,
+                const std::size_t xidlen, const bool owi);
+        virtual ~txn_rec();
+
+        // Prepare instance for use in reading data from journal
+        void reset(const u_int32_t magic);
+        // Prepare instance for use in writing data to journal
+        void reset(const u_int32_t magic, const  u_int64_t rid, const void* const xidp,
+                const std::size_t xidlen, const bool owi);
+        u_int32_t encode(void* wptr, u_int32_t rec_offs_dblks, u_int32_t max_size_dblks);
+        u_int32_t decode(rec_hdr& h, void* rptr, u_int32_t rec_offs_dblks,
+                u_int32_t max_size_dblks);
+        // Decode used for recover
+        bool rcv_decode(rec_hdr h, std::ifstream* ifsp, std::size_t& rec_offs);
+
+        std::size_t get_xid(void** const xidpp);
+        std::string& str(std::string& str) const;
+        inline std::size_t data_size() const { return 0; } // This record never carries data
+        std::size_t xid_size() const;
+        std::size_t rec_size() const;
+        inline u_int64_t rid() const { return _txn_hdr._rid; }
+
+    private:
+        void chk_hdr() const;
+        void chk_hdr(u_int64_t rid) const;
+        void chk_tail() const;
+        virtual void clean();
+    }; // class txn_rec
+
+} // namespace journal
+} // namespace mrg
+
+#endif // ifndef QPID_LEGACYSTORE_JRNL_TXN_REC_H