include/edm4hep/EventHeaderCollectionData.h

0001 // AUTOMATICALLY GENERATED FILE - DO NOT EDIT
0002
0003 #ifndef EDM4HEP_EventHeader_CollectionData_H
0004 #define EDM4HEP_EventHeader_CollectionData_H
0005
0006 // datamodel specific includes
0007 #include "edm4hep/EventHeaderData.h"
0008 #include "edm4hep/EventHeaderObj.h"
0009
0010 // schema evolution specific includes
0011
0012 // podio specific includes
0013 #include "podio/CollectionBuffers.h"
0014 #include "podio/ICollectionProvider.h"
0015
0016 #include <deque>
0017 #include <memory>
0018
0019 namespace edm4hep {
0020
0021
0022 using EventHeaderObjPointerContainer = std::deque<EventHeaderObj*>;
0023 using EventHeaderDataContainer = std::vector<EventHeaderData>;
0024
0025
0026 /**
0027  * Class encapsulating everything related to storage of data that is needed by a
0028  * collection.
0029  */
0030 class EventHeaderCollectionData {
0031 public:
0032   /**
0033    * The Objs of this collection
0034    */
0035   EventHeaderObjPointerContainer entries{};
0036
0037   /**
0038    * Default constructor setting up the necessary buffers
0039    */
0040   EventHeaderCollectionData();
0041
0042   /**
0043    * Constructor from existing I/O buffers
0044    */
0045   EventHeaderCollectionData(podio::CollectionReadBuffers buffers, bool isSubsetColl);
0046
0047   /**
0048    * Non copy-able, move-only class
0049    */
0050   EventHeaderCollectionData(const EventHeaderCollectionData&) = delete;
0051   EventHeaderCollectionData& operator=(const EventHeaderCollectionData&) = delete;
0052   EventHeaderCollectionData(EventHeaderCollectionData&& other) = default;
0053   EventHeaderCollectionData& operator=(EventHeaderCollectionData&& other) = default;
0054
0055   /**
0056    * Destructor
0057    */
0058   ~EventHeaderCollectionData() = default;
0059
0060   void clear(bool isSubsetColl);
0061
0062   podio::CollectionWriteBuffers getCollectionBuffers(bool isSubsetColl);
0063
0064   void prepareForWrite(bool isSubsetColl);
0065
0066   void prepareAfterRead(uint32_t collectionID);
0067
0068   void makeSubsetCollection();
0069
0070   void createRelations(EventHeaderObj* obj);
0071
0072   bool setReferences(const podio::ICollectionProvider* collectionProvider, bool isSubsetColl);
0073
0074 private:
0075   // members to handle 1-to-N-relations
0076
0077   // members to handle vector members
0078   podio::UVecPtr<double> m_vec_weights{nullptr}; /// combined vector of all objects in collection
0079   std::vector<podio::UVecPtr<double>> m_vecs_weights{}; /// pointers to individual member vectors
0080
0081   // I/O related buffers
0082   podio::CollRefCollection m_refCollections{};
0083   podio::VectorMembersInfo m_vecmem_info{};
0084   std::unique_ptr<EventHeaderDataContainer> m_data{nullptr};
0085 };
0086
0087
0088 } // namespace edm4hep
0089
0090
0091 #endif