AFPDBBase.AFPDBTableBase Node1 AFPDBBase.AFPDBTableBase + records + iovStartRun + iovStartLumiBlock + iovEndRun + iovEndLumiBlock + tag + folderName + spec + desc + data + folderSpec + folder + __init__() + serialiseHeader() + serialiseRecords() + serialiseTable() + saveToDB() + createOrGetFolder() Node2 object Node2->Node1