TVirtualConverter.icc

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
// $Id: TVirtualConverter.icc,v 1.2 2006-12-19 04:11:20 ssnyder Exp $
/**
 * @file TVirtualConverter.icc
 * @author scott snyder <snyder@bnl.gov>
 * @date Dec, 2006
 * @brief Base class for Root converters --- template implementations.
 */
 
 
/**
 * @brief Constructor, with class pointers.
 * @param trans_cls  The transient class to which we will be converting.
 * @param pers_cls   The persistent class to which we will be converting.
 *
 * The checksum will be calculated automatically from the provided classes.
 *
 * If either of the class pointers is defaulted to 0, the class pointer
 * will be computed from the appropriate template parameter.
 */
template <class TTrans, class TPers>
TVirtualConverter_T<TTrans, TPers>::TVirtualConverter_T
  (TClass* trans_class /*= 0*/,
   TClass* pers_class /*= 0*/)
  : TVirtualConverter (trans_class ?
                       trans_class :
                       TVirtualConverter::ToClass (typeid (TTrans)),
                       pers_class ?
                       pers_class :
                       TVirtualConverter::ToClass (typeid (TPers)))
{}
 
 
/**
 * @brief Constructor, with checksum and class pointers.
 * @param checksum   The Root checksum of the persistent class we'll convert.
 * @param trans_cls  The transient class to which we will be converting.
 * @param pers_cls   The persistent class to which we will be converting.
 *
 * If either of the class pointers is defaulted to 0, the class pointer
 * will be computed from the appropriate template parameter.
 */
template <class TTrans, class TPers>
TVirtualConverter_T<TTrans, TPers>::TVirtualConverter_T 
  (UInt_t checksum,
   TClass* trans_class /*= 0*/,
   TClass* pers_class /*= 0*/)
  : TVirtualConverter (checksum,
                       trans_class ?
                       trans_class :
                       TVirtualConverter::ToClass (typeid (TTrans)),
                       pers_class ?
                       pers_class :
                       TVirtualConverter::ToClass (typeid (TPers)))
{}
 
 
/**
 * @brief Do the conversion.
 * @param transobj Pointer to an instance of the transient class.
 * @param persobj Pointer to an instance of the persistent class.
 *
 * This implementation simply calls the @c Convert below
 * with the appropriate casting.
 */
template <class TTrans, class TPers>
void TVirtualConverter_T<TTrans, TPers>::ConvertVoid (void* transobj,
                                                      const void* persobj)
{
  this->Convert (reinterpret_cast<TTrans*> (transobj),
                 reinterpret_cast<const TPers*> (persobj));
}