Package oracle.nosql.driver

Enum Consistency

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<Consistency>
    public enum Consistency
extends java.lang.Enum<Consistency>
    Consistency is used to provide consistency guarantees for read operations.

    ABSOLUTE consistency may be specified to guarantee that current values are read. EVENTUAL consistency means that the values read may be very slightly out of date. ABSOLUTE consistency results in higher cost, consuming twice the number of read units for the same data relative to EVENTUAL consistency, and should only be used when required.

    It is possible to set a default Consistency for a NoSQLHandle instance by using NoSQLHandleConfig.setConsistency(oracle.nosql.driver.Consistency). If no Consistency is specified in an operation and there is no default value, EVENTUAL is used.

    Consistency can be specified as an optional argument to all read operations.

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      ABSOLUTE  
      EVENTUAL  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static Consistency valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static Consistency[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.

      • Methods inherited from class java.lang.Enum

        compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait

    • Method Detail

      • values

        public static Consistency[] 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 (Consistency c : Consistency.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static Consistency valueOf​(java.lang.String 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:
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null