Is there a way to modify a POJO field and return the POJO

问题

Is there a way to modify the field of POJO with new property(like using MixIns or @JSONProperty) and get the modified POJO back ? (A way to add/modify field of a POJO dynamically ?)

Like I have a class

 class PojoA<T>{

 private T data;//field to be modified as NewData

 }

So, I tried with MixIns like

    public interface PojoMixIn<T> {
    @JsonProperty("NewData")
     T getData();
     }

Now to get the modified field, I use ObjectMapper

        mapper.addMixInAnnotations(PojoA.class,PojoMixIn.class);
        mapper.writerWithDefaultPrettyPrinter().writeValueAsString(pojoA);

The actual result is a String, but can I be able to get the modified POJO?

来源：https://stackoverflow.com/questions/25364095/is-there-a-way-to-modify-a-pojo-field-and-return-the-pojo