com.fasterxml.jackson.annotation

Enum Nulls

  • All Implemented Interfaces:
    Serializable, Comparable<Nulls>

    public enum Nulls
extends Enum<Nulls>
    Enumeration used with JsonSetter (for properties `nulls` and `contentNulls`) to define how explicit `null` values from input (if input format has the concept; JSON, for example does) are handled.

    • Enum Constant Summary

      Enum Constants 
      Enum Constant and Description
      AS_EMPTY
      Value that indicates that value to assign should come from the value deserializer of the type, using method getEmptyValue().
      DEFAULT
      Pseudo-value used to indicate that defaults are to be used for handling, that is, this value specifies no explicit handling override.
      FAIL
      Value that indicates that an exception (of type that indicates input mismatch problem) is to be thrown, to indicate that null values are not accepted.
      SET
      Value that indicates that an input null should result in assignment of Java `null` value of matching property (except where deserializer indicates other "null value" by overriding getNullValue(...)
      SKIP
      Value that indicates that an input null value should be skipped and no assignment is to be made; this usually means that the property will have its default value.

    • Enum Constant Detail

      • SET

        public static final Nulls SET
        Value that indicates that an input null should result in assignment of Java `null` value of matching property (except where deserializer indicates other "null value" by overriding getNullValue(...) method)

      • SKIP

        public static final Nulls SKIP
        Value that indicates that an input null value should be skipped and no assignment is to be made; this usually means that the property will have its default value.

      • FAIL

        public static final Nulls FAIL
        Value that indicates that an exception (of type that indicates input mismatch problem) is to be thrown, to indicate that null values are not accepted.

      • AS_EMPTY

        public static final Nulls AS_EMPTY
        Value that indicates that value to assign should come from the value deserializer of the type, using method getEmptyValue().

      • DEFAULT

        public static final Nulls DEFAULT
        Pseudo-value used to indicate that defaults are to be used for handling, that is, this value specifies no explicit handling override.

    • Method Detail

      • values

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

      • valueOf

        public static Nulls valueOf(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:
        IllegalArgumentException - if this enum type has no constant with the specified name
        NullPointerException - if the argument is null

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