HandlerStateListener.h

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/*
* Copyright Onix Solutions Limited [OnixS]. All rights reserved.
*
* This software owned by Onix Solutions Limited [OnixS] and is protected by copyright law
* and international copyright treaties.
*
* Access to and use of the software is governed by the terms of the applicable OnixS Software
* Services Agreement (the Agreement) and Customer end user license agreements granting
* a non-assignable, non-transferable and non-exclusive license to use the software
* for it's own data processing purposes under the terms defined in the Agreement.
*
* Except as otherwise granted within the terms of the Agreement, copying or reproduction of any part
* of this source code or associated reference material to any other location for further reproduction
* or redistribution, and any amendments to this copyright notice, are expressly prohibited.
*
* Any reproduction or redistribution for sale or hiring of the Software not in accordance with
* the terms of the Agreement is a violation of copyright law.
*/

#pragma once

#include <string>

#include <OnixS/Eurex/MarketData/ABI.h>

namespace OnixS
{
    namespace Eurex
    {
        namespace MarketData
        {
            /// Defines the state that the handler is in.
            struct HandlerState
            {
                /// @copydoc HandlerState
                enum Enum
                {
                    Stopped,  ///< Stopped.
                    Stopping, ///< The intermediate state when the Handler is not Stopped but not Started.
                    Started,     ///< Started.
                    Starting,    ///< The intermediate state when the Handler is not Started but not Stopped.
                };
            };

            /// Returns string representation of HandlerState value.
            ONIXS_EUREX_EMDI_API std::string enumToString (HandlerState::Enum);

            /// Status Listener.
            class HandlerStateListener
            {
                public:
                    /// Implement this member to get notifications about handler state change.
                    virtual void onStateChanged (HandlerState::Enum newState) = 0;

                protected:
                    /// Disables public <b>delete</b> operator in the interface class.
                    virtual ~HandlerStateListener () {}
            };

        }
    }
}