ESTransientHandle.h

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#ifndef FWCore_Framework_ESTransientHandle_h
#define FWCore_Framework_ESTransientHandle_h
// -*- C++ -*-
//
// Package:     Framework
// Class  :     ESTransientHandle
// 
//
// Author:      Chris Jones
// Created:     Thu Nov 12 14:47:35 CST 2009
//

// system include files

// user include files
#include "FWCore/Framework/interface/ESHandle.h"

// forward declarations
namespace edm {

class ESHandleExceptionFactory;

template<typename T>
class ESTransientHandle : public ESHandleBase {
   public:
      typedef T value_type;
   
      ESTransientHandle() : ESHandleBase() {}
      ESTransientHandle(T const* iData) : ESHandleBase(iData, 0) {}
      ESTransientHandle(T const* iData, edm::eventsetup::ComponentDescription const* desc) : ESHandleBase(iData, desc) {}
      ESTransientHandle(std::shared_ptr<ESHandleExceptionFactory> &&);

      // ---------- const member functions ---------------------
      T const* product() const { return static_cast<T const *>(productStorage()); }
      T const* operator->() const { return product(); }
      T const& operator*() const { return *product(); }
      // ---------- static member functions --------------------
      static const bool transientAccessOnly = true;

      // ---------- member functions ---------------------------
      
   private:
};

template <class T>
ESTransientHandle<T>::ESTransientHandle(std::shared_ptr<edm::ESHandleExceptionFactory> && iWhyFailed) :
  ESHandleBase(std::move(iWhyFailed))
{ }

}
#endif