I stepped through each line of code, but I think it's how Jackson handles polymorphism internally.
Using the classic example of Dog and Cat extending Animal:
@JsonTypeInfo(use = Id.CUSTOM, include = As.PROPERTY, property = "type")
@JsonTypeIdResolver(AnimalTypeIdResolver.class)
@JsonIgnoreProperties(ignoreUnknown = true)
public abstract class Animal implements Serializable {
public AnnotatorBundleConfig(String name) {
super();
this.name = name;
}
The dog class :
public class DogAnimal extends Animal {
@JsonCreator
public DogAnimal(
@JsonProperty(value="name", required=true) String name,
@JsonProperty(value="bark_decibel") int bark_decibel)
{
super(name);
this.bark_decibel = bark_decibel;}
The cat class:
public class CatAnimal extends Animal {
@JsonCreator
public CatAnimal(
@JsonProperty(value="name", required=true) String name,
@JsonProperty(value="meow_level") int meow_level)
{
super(name);
this.meow_level = meow_level;}
The AnimalTypeIdResolver is a typical TypeIdResolver that extends AbstractTypeIdResolver.
For some very odd reason, bark_decibel and meow_level are deserialized from JSON, but type is getting in as null. Any ideas?
