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/EventHeader.h"
0008 #include "edm4hep/EventHeaderData.h"
0009 #include "edm4hep/EventHeaderObj.h"
0010
0011 // schema evolution specific includes
0012
0013 // podio specific includes
0014 #include "podio/CollectionBuffers.h"
0015 #include "podio/ICollectionProvider.h"
0016
0017 #include <deque>
0018 #include <memory>
0019
0020 namespace edm4hep {
0021
0022 using EventHeaderObjPointerContainer = std::deque<EventHeaderObj*>;
0023 using EventHeaderDataContainer = std::vector<EventHeaderData>;
0024
0025 /**
0026  * Class encapsulating everything related to storage of data that is needed by a
0027  * collection.
0028  */
0029 class EventHeaderCollectionData {
0030 public:
0031   /**
0032    * The Objs of this collection
0033    */
0034   EventHeaderObjPointerContainer entries{};
0035
0036   /**
0037    * Default constructor setting up the necessary buffers
0038    */
0039   EventHeaderCollectionData();
0040
0041   /**
0042    * Constructor from existing I/O buffers
0043    */
0044   EventHeaderCollectionData(podio::CollectionReadBuffers buffers, bool isSubsetColl);
0045
0046   /**
0047    * Non copy-able, move-only class
0048    */
0049   EventHeaderCollectionData(const EventHeaderCollectionData&) = delete;
0050   EventHeaderCollectionData& operator=(const EventHeaderCollectionData&) = delete;
0051   EventHeaderCollectionData(EventHeaderCollectionData&& other) = default;
0052   EventHeaderCollectionData& operator=(EventHeaderCollectionData&& other) = default;
0053
0054   /**
0055    * Destructor
0056    */
0057   ~EventHeaderCollectionData() = default;
0058
0059   void clear(bool isSubsetColl);
0060
0061   podio::CollectionWriteBuffers getCollectionBuffers(bool isSubsetColl);
0062
0063   void prepareForWrite(bool isSubsetColl);
0064
0065   void prepareAfterRead(uint32_t collectionID);
0066
0067   void makeSubsetCollection();
0068
0069   void createRelations(EventHeaderObj* obj);
0070
0071   bool setReferences(const podio::ICollectionProvider* collectionProvider, bool isSubsetColl);
0072
0073 private:
0074   // members to handle 1-to-N-relations
0075
0076   // members to handle vector members
0077   podio::UVecPtr<double> m_vec_weights{nullptr};        /// combined vector of all objects in collection
0078   std::vector<podio::UVecPtr<double>> m_vecs_weights{}; /// pointers to individual member vectors
0079
0080   // I/O related buffers
0081   podio::CollRefCollection m_refCollections{};
0082   podio::VectorMembersInfo m_vecmem_info{};
0083   std::unique_ptr<EventHeaderDataContainer> m_data{nullptr};
0084 };
0085
0086 } // namespace edm4hep
0087
0088 #endif