DeserializationFeature enum

Feature flags that influence deserialization behavior in JetLeaf.

These options determine how JSON input is interpreted, validated, and transformed into Dart objects.

Example

final mapper = ObjectMapper()
  ..enable(DeserializationFeature.ACCEPT_EMPTY_STRINGS_AS_NULL)
  ..disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);

Notes

  • Features provide compatibility and fault-tolerance for varying JSON formats.
  • Most options mirror Jackson’s configuration model for familiarity.

See also

Inheritance
Available extensions

Values

FAIL_ON_UNKNOWN_PROPERTIES → const DeserializationFeature

Throws an error when encountering unknown JSON properties that do not map to any field in the target class.

ALLOW_COMMENTS → const DeserializationFeature

Allows // and /* */ comments inside JSON documents.

Non-standard, but useful for configuration files or relaxed parsing.

ALLOW_SINGLE_QUOTES → const DeserializationFeature

Permits the use of single quotes ('value') for strings in addition to standard double quotes.

FAIL_ON_MISSING_CREATOR_PROPERTIES → const DeserializationFeature

Fails when a required constructor or factory parameter (creator property) is missing from input JSON.

ACCEPT_EMPTY_STRINGS_AS_NULL → const DeserializationFeature

Interprets empty strings ("") as null for non-string fields.

Example:

{ "user": "" } → { "user": null }
ADJUST_DATES_TO_CONTEXT_TIME_ZONE → const DeserializationFeature

Adjusts parsed DateTime values to the context’s configured time zone (see ObjectMapper.TIMEZONE_PROPERTY).

Properties

hashCode → int
The hash code for this object.
no setterinherited
index → int
A numeric identifier for the enumerated value.
no setterinherited
name → String

Available on Enum, provided by the EnumName extension

The name of the enum value.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Constants

values → const List<DeserializationFeature>
A constant List of the values in this enum, in order of their declaration.