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;
   }
}
#endif