Package com.fasterxml.jackson.databind.cfg

Enum ConstructorDetector.SingleArgConstructor

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<ConstructorDetector.SingleArgConstructor>
    Enclosing class:
    ConstructorDetector
    public static enum ConstructorDetector.SingleArgConstructor
extends java.lang.Enum<ConstructorDetector.SingleArgConstructor>
    Definition of alternate handling modes of single-argument constructors that are annotated with JsonCreator but without "mode" definition (or explicit name for the argument): this is the case where two interpretations are possible -- "properties" (in which case the argument is named parameter of a JSON Object) and "delegating (in which case the argument maps to the whole JSON value).

    Default choice is HEURISTIC (which is Jackson pre-2.12 always uses)

    NOTE: does NOT have any effect if explicit @JsonCreator} annotation is required.

    Since:
    2.12

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      DELEGATING
      Assume "delegating" mode if not explicitly annotated otherwise
      HEURISTIC
      Use heuristics to see if "properties" mode is to be used (POJO has a property with the same name as the implicit name [if available] of the constructor argument).
      PROPERTIES
      Assume "properties" mode if not explicitly annotated otherwise
      REQUIRE_MODE
      Refuse to decide implicit mode and instead throw a InvalidDefinitionException in ambiguous case.

    • Method Detail

      • values

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

      • valueOf

        public static ConstructorDetector.SingleArgConstructor 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