DDG4/lcio/LCIOEventReader.h

0001 //==========================================================================
0002 //  AIDA Detector description implementation
0003 //--------------------------------------------------------------------------
0004 // Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
0005 // All rights reserved.
0006 //
0007 // For the licensing terms see $DD4hepINSTALL/LICENSE.
0008 // For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
0009 //
0010 // Author     : M.Frank
0011 //
0012 //==========================================================================
0013 #ifndef DDG4_LCIO_LCIOEVENTREADER_H
0014 #define DDG4_LCIO_LCIOEVENTREADER_H
0015
0016 // Framework include files
0017 #include <DDG4/Geant4InputAction.h>
0018
0019 // Forward declarations
0020 namespace EVENT { class LCCollection;    }
0021
0022 /// Namespace for the AIDA detector description toolkit
0023 namespace dd4hep  {
0024
0025   /// Namespace for the Geant4 based simulation part of the AIDA detector description toolkit
0026   namespace sim  {
0027
0028     /// Base class to read lcio files.
0029     /**
0030      *  \author  P.Kostka (main author)
0031      *  \author  M.Frank  (code reshuffeling into new DDG4 scheme)
0032      *  \version 1.0
0033      *  \ingroup DD4HEP_SIMULATION
0034      */
0035     class LCIOEventReader : public Geant4EventReader  {
0036     public:
0037       /// Initializing constructor
0038       LCIOEventReader(const std::string& nam);
0039       /// Default destructor
0040       virtual ~LCIOEventReader();
0041
0042       /// Read an event and fill a vector of MCParticles.
0043       virtual EventReaderStatus readParticles(int event_number,
0044                                               Vertices& vertices,
0045                                               std::vector<Particle*>& particles);
0046       /// Read an event and return a LCCollectionVec of MCParticles.
0047       virtual EventReaderStatus readParticleCollection(int event_number,
0048                                                        EVENT::LCCollection** particles) = 0;
0049     };
0050
0051   }     /* End namespace sim   */
0052 }       /* End namespace dd4hep */
0053 #endif // DDG4_LCIO_LCIOEVENTREADER_H