Jackson Invert

A Jackson module to invert JSON object-of-arrays into Java array-of-objects.

Example

Given the JSON input:

{
  "people": {
    "name": ["Bill", "Bob"],
    "age": [20, 30]
  }
}

The @JsonInvert annotation can be used to deserialize the following model:

public record Wrapper(@JsonInvert List<Person> people) {}
public record Person(String name, int age) {}

Usage

The InvertModule should be registered with a Jackson ObjectMapper:

var objectMapper = new ObjectMapper().registerModule(new InvertModule());