PileUpXingFolder Node1 PileUpXingFolder - m_folder - m_firstXing - m_lastXing - m_itemList - m_cacheRefreshFrequency + begin() + end() + setXings() + firstXing() + lastXing() + cacheRefreshFrequency() + contains() * const_iterator * PileUpXingFolder() * initialize() * m_folder * m_firstXing * m_lastXing * m_itemList * m_cacheRefreshFrequency * begin() * end() * setXings() * firstXing() * lastXing() * cacheRefreshFrequency() * contains() Node2 extends< AthAlgTool, IPileUpXingFolder > Node2->Node1