DataKeyTags.h

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#ifndef Framework_DataKeyTags_h
#define Framework_DataKeyTags_h
// -*- C++ -*-
//
// Package:     Framework
// Class  :     DataKeyTags
//
//
// Author:      Chris Jones
// Created:     Thu Mar 31 14:13:07 EST 2005
//

// system include files

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

// forward declarations
namespace edm {
  namespace eventsetup {

    typedef heterocontainer::HCTypeTag TypeTag;

    class SimpleStringTag {
    public:
      SimpleStringTag(const char* iString) : tag_(iString) {}
      SimpleStringTag() : tag_("") {}
      bool operator==(const SimpleStringTag& iRHS) const;
      bool operator<(const SimpleStringTag& iRHS) const;

      const char* value() const { return tag_; }

    private:
      const char* tag_;
    };

    class NameTag : public SimpleStringTag {
    public:
      NameTag(const char* iUsage) : SimpleStringTag(iUsage) {}
      NameTag() : SimpleStringTag() {}
    };

    typedef NameTag IdTags;
  }  // namespace eventsetup
}  // namespace edm
#endif