pool::IOODatabase Node1 pool::IOODatabase + ~IOODatabase() + name() + createDomain() + createDatabase() + createContainer() + release() Node3 pool::RootOODb + RootOODb() + ~RootOODb() + name() + createDomain() + createDatabase() + createContainer() + catalogLabel() Node1->Node3 Node2 pool::RefCounter - m_count + RefCounter() + RefCounter() + operator=() + addRef() + subRef() Node2->Node1 Node4 pool::RootOOKey + RootOOKey() + catalogLabel() Node3->Node4 Node5 pool::RootOORNTuple + RootOORNTuple() + catalogLabel() Node3->Node5 Node6 pool::RootOOTree + RootOOTree() + catalogLabel() Node3->Node6 Node7 pool::RootOOTreeIndex + RootOOTreeIndex() + catalogLabel() Node3->Node7