Return the node's most recent copy of data.
Return the node's most recent copy of data. Provides no guarantee that the data has been written to a majority of the nodes.
Return the node's most recent copy of the data confirmed as having been written to a majority of the nodes.
Returns the ReadConcern from the string read concern level.
Returns the ReadConcern from the string read concern level.
the read concern level string.
the read concern
The readConcern level of isolation for reads.
1.1
Requires MongoDB 3.2 or greater