* Read and write access to stored data is provided only via transactions
* created using {@link #newReadOnlyTransaction()},
* {@link #newWriteOnlyTransaction()} and {@link #newReadWriteTransaction()}, or
* Read and write access to stored data is provided only via transactions
* created using {@link #newReadOnlyTransaction()},
* {@link #newWriteOnlyTransaction()} and {@link #newReadWriteTransaction()}, or