ElementLink_p3.h

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef DATAMODELATHENAPOOL_ELEMENTLINK_P3_H
#define DATAMODELATHENAPOOL_ELEMENTLINK_P3_H

 
#include <string>
#include <inttypes.h>
 
#include "SGCore/sgkey_t.h"

 
template <class INDEXTYPE>
class ElementLink_p3 {
public:
 
  ElementLink_p3() = default;
 
  INDEXTYPE m_elementIndex{};
  SG::sgkey_t  m_SGKeyHash{0};
};
 
 
// If you define more ElementLink_pN types, remember to add template instantiations to the Dict file
 
typedef ElementLink_p3<uint32_t>    ElementLinkInt_p3;
typedef ElementLink_p3<std::string>  ElementLinkStr_p3;
 
 
// Helper template for conversion from the index type in transient ElementLink
// to the persistent index type
 
template <typename ContIndxType>
struct GenerateELinkIndexType_p3 {
//  typedef MISSING_DEFINITION_OF_GenerateELinkIndexType_FOR_<ContIndxType> type;
};
 
template<>
struct GenerateELinkIndexType_p3<uint32_t> {
   typedef  uint32_t    type;
};
 
template<>
struct GenerateELinkIndexType_p3<uint64_t> {
    typedef uint32_t    type;
};
 
template<>
struct GenerateELinkIndexType_p3<int> {
    typedef uint32_t    type;
};
 
#ifdef __APPLE__
template<>
struct GenerateELinkIndexType_p3<size_t> {
    typedef uint32_t    type;
};
#endif
 
template<>
struct GenerateELinkIndexType_p3<std::string> {
   typedef  std::string type;
};
 
 
// Helper template to generate type of the persistent ElementLink_pN
// from the type of the transient ElementLink
// Used in the ElementlinkCnv_pN
 
template <class LINK>
struct GeneratePersELinkType_p3 {
  typedef  ElementLink_p3<typename GenerateELinkIndexType_p3<typename LINK::index_type>::type >   type;
};
 
#endif // DATAMODELATHENAPOOL_ELEMENTLINK_P3_H