MultiAssociationTool.icc

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
/**
 * @file D3PDMakerUtils/MultiAssociationTool.icc
 * @author scott snyder <snyder@bnl.gov>
 * @date Aug, 2009
 * @brief Type-safe wrapper for multiple-target associator tools.
 */
 
 
namespace D3PD {
 
 
/**
 * @brief Return the element type for the target of the association.
 *
 * I.e., @c nextUntyped returns a pointer to this type.
 */
template <typename TO_T>
const std::type_info&
MultiAssociationToolTo<TO_T>::elementTypeinfo () const
{
  return typeid (TO_T);
}
 
 
/**
 * @brief Return a pointer to the next element in the association.
 *
 * Return 0 when the association has been exhausted.
 */
template <typename TO_T>
const void*
MultiAssociationToolTo<TO_T>::nextUntyped ()
{
  return next();
}
 
 
/**
 * @brief Release an object retrieved from the association.
 * @param p The object to release.
 *
 * Call this when you are done with the object returned by
 * @c next().  The default implementation is a no-op,
 * but if the association dynamically allocated the object which
 * it returned, this gives it a chance to free it.
 */
template <typename TO_T>
void MultiAssociationToolTo<TO_T>::releaseElement (const TO_T* /*p*/)
{
}
 
 
/**
 * @brief Release an object retrieved from the association.
 * @param p The object to release.
 *
 * Call this when you are done with the object returned by
 * @c nextUntyped().  The default implementation is a no-op,
 * but if the association dynamically allocated the object which
 * it returned, this gives it a chance to free it.
 */
template <typename TO_T>
void
MultiAssociationToolTo<TO_T>::releaseElementUntyped (const void* p)
{
  return releaseElement (reinterpret_cast<const TO_T*> (p));
}
 
 
//=========================================================================
 
 
/**
 * @brief Return the @c std::type_info for the source of the association.
 */
template <typename FROM_T, typename TO_T>
const std::type_info&
MultiAssociationTool<FROM_T, TO_T>::fromTypeinfo () const
{
  return typeid (FROM_T);
}
 
 
/**
 * @brief Start the iteration for a new association.
 * @param p The object from which to associate.
 */
template <typename FROM_T, typename TO_T>
StatusCode
MultiAssociationTool<FROM_T, TO_T>::resetUntyped (const void* p)
{
  const FROM_T* pp = reinterpret_cast<const FROM_T*> (this->doConversion (p));
  if (!pp) return StatusCode::FAILURE;
  return reset (*pp);
}
 
 
} // namespace D3PD