com.fasterxml.jackson.databind

Enum ObjectMapper.DefaultTyping

  • All Implemented Interfaces:
    Serializable, Comparable<ObjectMapper.DefaultTyping>
    Enclosing class:
    ObjectMapper

    public static enum ObjectMapper.DefaultTyping
extends Enum<ObjectMapper.DefaultTyping>
    Enumeration used with ObjectMapper.enableDefaultTyping() to specify what kind of types (classes) default typing should be used for. It will only be used if no explicit type information is found, but this enumeration further limits subset of those types.

    Since 2.4 there are special exceptions for JSON Tree model types (sub-types of TreeNode: default typing is never applied to them (see databind#88 for details)

    Since 2.8(.4) additional checks are made to avoid attempts at default typing primitive-valued properties.

    • Enum Constant Detail

      • JAVA_LANG_OBJECT

        public static final ObjectMapper.DefaultTyping JAVA_LANG_OBJECT
        This value means that only properties that have Object as declared type (including generic types without explicit type) will use default typing.

      • OBJECT_AND_NON_CONCRETE

        public static final ObjectMapper.DefaultTyping OBJECT_AND_NON_CONCRETE
        Value that means that default typing will be used for properties with declared type of Object or an abstract type (abstract class or interface). Note that this does not include array types.

        Since 2.4, this does NOT apply to TreeNode and its subtypes.

      • NON_CONCRETE_AND_ARRAYS

        public static final ObjectMapper.DefaultTyping NON_CONCRETE_AND_ARRAYS
        Value that means that default typing will be used for all types covered by OBJECT_AND_NON_CONCRETE plus all array types for them.

        Since 2.4, this does NOT apply to TreeNode and its subtypes.

      • NON_FINAL

        public static final ObjectMapper.DefaultTyping NON_FINAL
        Value that means that default typing will be used for all non-final types, with exception of small number of "natural" types (String, Boolean, Integer, Double), which can be correctly inferred from JSON; as well as for all arrays of non-final types.

        Since 2.4, this does NOT apply to TreeNode and its subtypes.

    • Method Detail

      • values

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

      • valueOf

        public static ObjectMapper.DefaultTyping 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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