jackson-databind

jackson-databind copied to clipboard

See FasterXML/jackson#278 for context

I would like to include a bean into a class multiple times. For serialization, this bean should prefix its fields in a specific way so that I can reuse this bean in other classes too.

This is the JSON representation I want to use

{
  "name": "name",  // name.value
  "name_l10n": {   // name.value_l10n
    "de": "name",
    "fr": "nom"
  },
  "description": "description",  // description.value
  "description_l10n": {          // description.value_l10n
    "de": "Beschreibung",
    "fr": "description"
  }
}

The pairs name and name_l10n should be from the same bean instance. The java representation should be simple and reusable

public class MyFancyClass {
	@JsonUnwrapped
	private LocalizedField name;        // → name.value and name.value_l10n
	@JsonUnwrapped
	private LocalizedField description; // → description.value and description.value_l10n

    // ... getters and setters
}

I have provided some test cases to demonstrate the problems I have encountered so far.

1. Without custom serialization configuration, the mapper creates invalid JSON. See testUnwrappingWithDifferentProperties
2. Serialization works find, see testUnwrappingWithCustomSerializer
3. Deserialization does not work, see testUnwrappingWithCustomDeserializer