There are no attributes in this class.
abort(txn)
commit(txn)
prepare(txn)
sortKey()
ZODB uses a global sort order to prevent deadlock when it commits transactions involving multiple resource managers. The resource manager must define a sortKey() method that provides a global ordering for resource managers.
(excerpt from transaction/notes.txt)
tpc_abort(txn)
tpc_begin(txn)
tpc_finish(txn)
tpc_vote(txn)
There are no known subclasses.