TransientProductLookupMap.h

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#ifndef DataFormats_Provenance_TransientProductLookupMap_h
#define DataFormats_Provenance_TransientProductLookupMap_h
// -*- C++ -*-
//
// Package:     Provenance
// Class  :     TransientProductLookupMap
// 
//
// Original Author:  Chris Jones
//         Created:  Fri May  1 11:15:08 CDT 2009
//

// system include files
#include <map>
#include <vector>

// user include files
#include "DataFormats/Provenance/interface/TypeInBranchType.h"
#include "DataFormats/Provenance/interface/BranchDescriptionIndex.h"
#include "DataFormats/Provenance/interface/ProductLookupIndex.h"
#include "DataFormats/Provenance/interface/ProcessHistoryID.h"

// forward declarations
namespace edm {
   class ProcessHistory;
   
   struct CompareTypeInBranchTypeConstBranchDescription {
      bool operator()(std::pair<TypeInBranchType, ConstBranchDescription const*> const& iLHS,
                      std::pair<TypeInBranchType, ConstBranchDescription const*> const& iRHS) const;
   };
   
   class TransientProductLookupMap {
      
   public:
      typedef std::vector<std::pair<TypeInBranchType, BranchDescriptionIndex> > TypeInBranchTypeLookup;
      typedef std::vector<ProductLookupIndex> ProductLookupIndexList;
      
      typedef ProductLookupIndexList::const_iterator const_iterator;

      typedef std::map<std::pair<TypeInBranchType, ConstBranchDescription const*>,
            ProductTransientIndex,
            CompareTypeInBranchTypeConstBranchDescription> FillFromMap;

      TransientProductLookupMap();

      void reset();
            
      // ---------- const member functions ---------------------
      
      std::pair<const_iterator, const_iterator> equal_range(TypeInBranchType const&) const;
      
      std::pair<const_iterator, const_iterator> equal_range(TypeInBranchType const&,
                                std::string const&,
                                std::string const&) const;
      
      // ---------- static member functions --------------------
      
      // ---------- member functions ---------------------------

      void reorderIfNecessary(BranchType, ProcessHistory const&, std::string const& iNewProcessName);
      
      void fillFrom(FillFromMap const&);

      const_iterator begin() const {return productLookupIndexList_.begin();}

      const_iterator end() const {return productLookupIndexList_.end();}

      int fillCount() const {return fillCount_;}

   private:
      // ---------- member data --------------------------------
      TypeInBranchTypeLookup branchLookup_;
      ProductLookupIndexList productLookupIndexList_;
      std::vector<ProcessHistoryID> historyIDsForBranchType_;
      std::vector<std::vector<std::string> > processNameOrderingForBranchType_;
      int fillCount_;
   };
   
}

#endif