ActsTrk::VolumePlacement::AlignedCache Node1 ActsTrk::VolumePlacement ::AlignedCache - m_parent - m_flags + AlignedCache() + AlignedCache() + fetchTransform() Node2 ActsTrk::TransformCacheBase - m_hash - m_type - m_clientNo - ATLAS_THREAD_SAFE - ATLAS_THREAD_SAFE + TransformCacheBase() + TransformCacheBase() + operator=() + TransformCacheBase() + operator=() + ~TransformCacheBase() + hash() + getTransform() + getTransform() + releaseNominalCache() + detectorType() # fetchTransform() Node2->Node1