xAODPrivate::THolderBucket Node1 xAODPrivate::THolderBucket - m_key - m_ti - m_event + THolderBucket() + object() + tinfo() + cast() + cast() + cast() + relinquish() + lock() Node2 DataBucketBase + DataBucketBase() + ~DataBucketBase() + object() + tinfo() + cast() + cast() + cast() + cast() + relinquish() + lock() Node2->Node1 Node3 DataObject Node3->Node2