struct Mongo::ReadConcern

• Mongo::ReadConcern
• Struct
• Value
• Object

Overview

The readConcern option allows to control the consistency and isolation properties of the data read from replica sets and replica set shards.

Through the effective use of write concerns and read concerns, you can adjust the level of consistency and availability guarantees as appropriate, such as waiting for stronger consistency guarantees, or loosening consistency requirements to provide higher availability.

See: the official documentation

Included Modules

• BSON::Serializable

Defined in:

Constructors

• .new(bson : BSON)

  Allocate an instance and copies data from a BSON struct.

• .new(level : Nil | String = nil, after_cluster_time : BSON::Timestamp | Nil = nil)

  Create a ReadConcern instance.

Class Method Summary

• .from_bson(bson : BSON)

  NOTE See self.new.

Instance Method Summary

• #level : String | Nil

  The read concern level.

• #level=(level : String | Nil)

  The read concern level.

• #to_bson(bson = BSON.new)

  Converts to a BSON representation.

Constructor Detail

class User
  include BSON::Serializable
  property name : String
end

data = BSON.new
data["name"] = "John"
User.new(data)

Class Method Detail

Instance Method Detail

user = User.new name: "John"
bson = user.to_bson