DTAGHGeometry_factory.h

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//
// File: DTAGHGeometry_factory.h
// Created: Sat Jul 5 10:09:27 EST 2014
// Creator: jonesrt on gluey.phys.uconn.edu
//

#ifndef _DTAGHGeometry_factory_
#define _DTAGHGeometry_factory_

#include <string>

#include <JANA/JFactory.h>
#include <TAGGER/DTAGHGeometry.h>

class DTAGHGeometry_factory : public JFactory<DTAGHGeometry> {
   public:
      DTAGHGeometry_factory(){}
      ~DTAGHGeometry_factory(){}
   
      DTAGHGeometry *taghgeometry=nullptr;

      //------------------
      // brun
      //------------------
      jerror_t brun(JEventLoop *loop, int32_t runnumber)
      {
         // The NOT_OBJECT_OWNER flag tells JANA not to automatically
         // delete the objects in _data. This allows the same geometry
         // object to persist through multiple events.
         //
         // n.b. There is another, similar factory flag "PERSISTANT"
         // that will also prevent the object from being deleted. That,
         // however, will also prevent the brun and evnt methods from
         // being called. Here, we want the brun method to be called since
         // the geometry actually may change with run number. (This
         // happened for Lubomir's J/Psi analysis where the tiny number
         // of events spread over many runs were concatenated in a single
         // job.)
         SetFactoryFlag(NOT_OBJECT_OWNER);
         ClearFactoryFlag(WRITE_TO_OUTPUT);
         
         if( taghgeometry ) delete taghgeometry;

         taghgeometry = new DTAGHGeometry(loop);

         return NOERROR;
      }

      //------------------
      // evnt
      //------------------
       jerror_t evnt(JEventLoop *loop, uint64_t eventnumber)
       {
         // Reuse existing DBCALGeometry object.
         if( taghgeometry ) _data.push_back( taghgeometry );
          
          return NOERROR;
       }

      //------------------
      // erun
      //------------------
      jerror_t erun(void)
      {
         if( taghgeometry ) delete taghgeometry;
         taghgeometry = NULL;
         
         return NOERROR;
      }
};

#endif // _DTAGHGeometry_factory_