eflowTrackExtrapolatorBaseAlgTool Node1 eflowTrackExtrapolatorBase AlgTool + execute() Node3 eflowTrackCaloExtensionTool - m_invGeV - m_theTrackExtrapolatorTool - m_trackParametersIdHelper - m_ParticleCacheKey - m_useOldCalo - m_monTool + eflowTrackCaloExtensionTool() + ~eflowTrackCaloExtensionTool() + initialize() + execute() + finalize() + interfaceID() - getLayer() Node1->Node3 Node2 IAlgTool Node2->Node1