Group.h

Go to the documentation of this file.

/*
* 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 <OnixS/Eurex/MarketData/ABI.h>
#include <OnixS/Eurex/MarketData/FieldSet.h>
 
namespace OnixS
{
    namespace Eurex
    {
        namespace MarketData
        {
            ONIXS_EUREX_EMDI_API_DECL (class, Message);
            ONIXS_EUREX_EMDI_API_DECL (class, Group);

            class ONIXS_EUREX_EMDI_API GroupInstance : public FieldSet
            {
                public:
                    GroupInstance (const GroupInstance& other);

                    GroupInstance& operator = (const GroupInstance&);
 
                private:
                    friend class MessageOperator;
 
                    GroupInstance (const Message*, void*);
            };

            class ONIXS_EUREX_EMDI_API Group
            {
                public:
                    Group (const Group& other);

                    operator bool() const;

                    size_t size() const;

                    const GroupInstance at (size_t index) const;

                    const GroupInstance operator [] (size_t index) const;

                    Group& operator = (const Group& other);
 

                    void swap(Group&) throw();
 
                private:
                    friend class MessageOperator;
 
                    const Message* container_;
 
                    void* impl_;
 
                    Group (const Message*, void*);
            };
 
            template<class Entry>
            class TypedGroup : protected Group
            {
                public:
                    using Group::size;

                    bool empty() const
                    {
                        return 0 == size();
                    }

                    const Entry at (size_t index) const
                    {
                        if (index < size() )
                            return Entry (this->Group::operator[] (index) );
 
                        throw std::out_of_range ("Index");
                    }

                    Entry operator [] (size_t index) const
                    {
                        return Entry (this->Group::operator[] (index) );
                    }
 
                protected:
                    explicit
                    TypedGroup (const Group& group)
                        : Group (group)
                    {
                    }
            };
        }
    }
}