jvm PrimaryPreferred¶ PrimaryPreferred The query is sent to the primary node in the replica set. If the primary node is not available (e.g. during a failover), the operation reads from secondary nodes. Read operations using this preference may return stale data. External resources¶ Official documentation Properties¶ bsonName¶ val bsonName: String name¶ val name: String ordinal¶ val ordinal: Int