FWItemRandomAccessor.cc

Go to the documentation of this file.

// -*- C++ -*-
//
// Package:     Core
// Class  :     FWItemRandomAccessor
//
// Implementation:
//    A generic helper class which can be used to create
//    a specialized FWItemAccessorBase plugin for
//    all the classes that expose a std::vector like interface.
//
// Original Author:  Giulio Eulisse
//         Created:  Thu Feb 18 15:19:44 EDT 2008
//

// system include files
#include <cassert>
#include "TClass.h"

// user include files
#include "Fireworks/Core/interface/FWItemRandomAccessor.h"

// forward declarations

FWItemRandomAccessorBase::FWItemRandomAccessorBase(const TClass* type, const std::type_info& modelTypeName)
    : m_type(type), m_modelType(TClass::GetClass(modelTypeName)), m_data(nullptr) {}

// FWItemRandomAccessor::FWItemRandomAccessor(const FWItemRandomAccessor& rhs)
// {
//    // do actual copying here;
// }

FWItemRandomAccessorBase::~FWItemRandomAccessorBase() {}

//
// assignment operators
//
// const FWItemRandomAccessor& FWItemRandomAccessor::operator=(const FWItemRandomAccessor& rhs)
// {
//   //An exception safe implementation is
//   FWItemRandomAccessor temp(rhs);
//   swap(rhs);
//
//   return *this;
// }

//
// member functions
//
void FWItemRandomAccessorBase::setData(const edm::ObjectWithDict& product) {
  if (product.address() == nullptr) {
    reset();
    return;
  }

  m_data = product.address();
  assert(nullptr != m_data);
}

void FWItemRandomAccessorBase::reset() { m_data = nullptr; }

//
// const member functions
//
const void* FWItemRandomAccessorBase::data() const { return m_data; }

void* FWItemRandomAccessorBase::getDataPtr() const { return m_data; }

const TClass* FWItemRandomAccessorBase::type() const { return m_type; }

const TClass* FWItemRandomAccessorBase::modelType() const {
  assert(m_modelType);
  return m_modelType;
}

bool FWItemRandomAccessorBase::isCollection() const { return true; }
//
// static member functions
//