IRscReadEnumerator.hxx

 
//
//  Copyright Phoenix Contact GmbH & Co. KG
//
#pragma once
#include "Arp/Base/Core/Arp.hpp"
 
namespace Arp::Base::Rsc::Commons
{
 
// forwards
class RscArrayReader;
 
template<class T>
class IRscReadEnumerator
{
public: // usings
    using Ptr = std::shared_ptr<IRscReadEnumerator>; 
 
public: // canonical construction/destruction/assignment
    IRscReadEnumerator(void) = default;
    IRscReadEnumerator(const IRscReadEnumerator& arg) = delete;
    IRscReadEnumerator(IRscReadEnumerator&& arg)noexcept = default;
    IRscReadEnumerator& operator=(const IRscReadEnumerator& arg) = delete;
    IRscReadEnumerator& operator=(IRscReadEnumerator&& arg)noexcept = default;
    virtual ~IRscReadEnumerator(void) = default;
 
public: // abstract operations
    virtual size_t  BeginRead(void) = 0;
 
    virtual bool    ReadNext(T& current) = 0;
 
    virtual bool    ReadNext(RscArrayReader& current) = 0;
 
    virtual void    EndRead(void) = 0;
 
public:
    static constexpr size_t UndefinedArrayLength = std::numeric_limits<size_t>::max();
};
 
} // end of namespace Arp::Base::Rsc::Commons