Package com.mongodb

Enum ReadConcernLevel

  • All Implemented Interfaces:
    , <ReadConcernLevel>
    public enum ReadConcernLevel
extends <ReadConcernLevel>
    A read concern level allows clients to choose a level of isolation for their reads.
    Since:
    3.2
    MongoDB documentation
    Since server release

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      AVAILABLE
      The available read concern level.
      LINEARIZABLE
      The linearizable read concern level.
      LOCAL
      The local read concern level.
      MAJORITY
      The majority read concern level.
      SNAPSHOT
      The snapshot read concern level.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static ReadConcernLevel  readConcernLevel)
      Returns the ReadConcern from the string read concern level.
      getValue()  
      static ReadConcernLevel  name)
      Returns the enum constant of this type with the specified name.
      static ReadConcernLevel[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.

      • Methods inherited from class java.lang.

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      • Methods inherited from class java.lang.

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    • Enum Constant Detail

      • LOCAL

        public static final ReadConcernLevel LOCAL
        The local read concern level.

      • MAJORITY

        public static final ReadConcernLevel MAJORITY
        The majority read concern level.

      • LINEARIZABLE

        public static final ReadConcernLevel LINEARIZABLE
        The linearizable read concern level.

        This read concern level is only compatible with ReadPreference.primary().

        Since:
        3.4
        Since server release

      • SNAPSHOT

        public static final ReadConcernLevel SNAPSHOT
        The snapshot read concern level.
        Since:
        3.8
        Since server release

      • AVAILABLE

        public static final ReadConcernLevel AVAILABLE
        The available read concern level.
        Since:
        3.9
        Since server release

    • Method Detail

      • values

        public static ReadConcernLevel[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: 
        for (ReadConcernLevel c : ReadConcernLevel.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static  name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        Parameters:
        name - the name of the enum constant to be returned.
        Returns:
        the enum constant with the specified name
        Throws:
        - if this enum type has no constant with the specified name
        - if the argument is null

      • getValue

        public  getValue()
        Returns:
        the String representation of the read concern level that the MongoDB server understands or null for the default

      • fromString

        public static  readConcernLevel)
        Returns the ReadConcern from the string read concern level.
        Parameters:
        readConcernLevel - the read concern level string.
        Returns:
        the read concern