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diff --git a/qpid/cpp/src/qpid/messaging/SessionImpl.h b/qpid/cpp/src/qpid/messaging/SessionImpl.h
new file mode 100644
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+++ b/qpid/cpp/src/qpid/messaging/SessionImpl.h
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+#ifndef QPID_MESSAGING_SESSIONIMPL_H
+#define QPID_MESSAGING_SESSIONIMPL_H
+
+/*
+ *
+ * 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.
+ *
+ */
+#include "qpid/RefCounted.h"
+#include <string>
+#include "qpid/messaging/Duration.h"
+
+namespace qpid {
+namespace messaging {
+
+class Address;
+class Connection;
+class Message;
+class Sender;
+class Receiver;
+
+class SessionImpl : public virtual qpid::RefCounted
+{
+  public:
+    virtual ~SessionImpl() {}
+    virtual void commit() = 0;
+    virtual void rollback() = 0;
+    virtual void acknowledge(bool sync) = 0;
+    virtual void acknowledge(Message&) = 0;
+    virtual void reject(Message&) = 0;
+    virtual void release(Message&) = 0;
+    virtual void close() = 0;
+    virtual void sync(bool block) = 0;
+    virtual Sender createSender(const Address& address) = 0;
+    virtual Receiver createReceiver(const Address& address) = 0;
+    virtual bool nextReceiver(Receiver& receiver, Duration timeout) = 0;
+    virtual Receiver nextReceiver(Duration timeout) = 0;
+    virtual uint32_t getReceivable() = 0;
+    virtual uint32_t getUnsettledAcks() = 0;
+    virtual Sender getSender(const std::string& name) const = 0;
+    virtual Receiver getReceiver(const std::string& name) const = 0;
+    virtual Connection getConnection() const = 0;
+    virtual void checkError() = 0;
+  private:
+};
+}} // namespace qpid::messaging
+
+#endif  /*!QPID_MESSAGING_SESSIONIMPL_H*/