Force Jackson to add addional wrapping using annotations

Question

I have the following class:

public class Message {
    private String text;

    public String getText() {
        return text;
    }

    public void setText(St         


        

Answer 1

On workaround: you don't absolutely need those getters/setters, so could just have:

public class MessageWrapper {
  public Message message;
}

or perhaps add convenience constructor:

public class MessageWrapper {
  public Message message;
  @JsonCreator
  public MessageWrapper(@JsonProperty("message") Message m) { 
       message = m; 
  }
}

There is a way to add wrapping too; with 1.9 you can use SerializationConfig.Feature.WRAP_ROOT_ELEMENT and DeserializationConfig.Feature.UNWRAP_ROOT_ELEMENT. And if you want to change the wrapper name (by default it is simply unqualified class name), you can use @JsonRootName annotation

Jackson 2.0 adds further dynamic options via ObjectReader and ObjectWriter, as well as JAX-RS annotations.