Option is an option to provide when creating a ReadConcern.
Deprecated: Use the ReadConcern literal declaration instead. For example:
&readconcern.ReadConcern{Level: "local"}
type Option func(concern *ReadConcern)
func Level(level string) Option
Level creates an option that sets the level of a ReadConcern.
Deprecated: Use the ReadConcern literal declaration instead. For example:
&readconcern.ReadConcern{Level: "local"}
A ReadConcern defines a MongoDB read concern, which allows you to control the consistency and isolation properties of the data read from replica sets and replica set shards.
For more information about MongoDB read concerns, see https://www.mongodb.com/docs/manual/reference/read-concern/
type ReadConcern struct {
Level string
}
func Available() *ReadConcern
Available returns a ReadConcern that requests data from an instance with no guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back).
For more information about read concern "available", see https://www.mongodb.com/docs/manual/reference/read-concern-available/
func Linearizable() *ReadConcern
Linearizable returns a ReadConcern that requests data that reflects all successful majority-acknowledged writes that completed prior to the start of the read operation.
For more information about read concern "linearizable", see https://www.mongodb.com/docs/manual/reference/read-concern-linearizable/
func Local() *ReadConcern
Local returns a ReadConcern that requests data from the instance with no guarantee that the data has been written to a majority of the replica set members (i.e. may be rolled back).
For more information about read concern "local", see https://www.mongodb.com/docs/manual/reference/read-concern-local/
func Majority() *ReadConcern
Majority returns a ReadConcern that requests data that has been acknowledged by a majority of the replica set members (i.e. the documents read are durable and guaranteed not to roll back).
For more information about read concern "majority", see https://www.mongodb.com/docs/manual/reference/read-concern-majority/
func New(options ...Option) *ReadConcern
New constructs a new read concern from the given string.
Deprecated: Use the ReadConcern literal declaration instead. For example:
&readconcern.ReadConcern{Level: "local"}
func Snapshot() *ReadConcern
Snapshot returns a ReadConcern that requests majority-committed data as it appears across shards from a specific single point in time in the recent past.
For more information about read concern "snapshot", see https://www.mongodb.com/docs/manual/reference/read-concern-snapshot/
func (rc *ReadConcern) GetLevel() string
GetLevel returns the read concern level.
Deprecated: Use the ReadConcern.Level field instead.
func (rc *ReadConcern) MarshalBSONValue() (bsontype.Type, []byte, error)
MarshalBSONValue implements the bson.ValueMarshaler interface.
Deprecated: Marshaling a ReadConcern to BSON will not be supported in Go Driver 2.0.