mongojack: Unrecognized field at subclass

[yous...@gmail.com]

I use mongojack to map my POJOs for mongoDB.

It works fine with a Single POJO.
But if I make a Subclass of this, the insert fails:

com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "created" (class de.hbt.dps.data.PoJo), not marked as ignorable (2 known properties: , "_id", "url"])

What's wrong?

This are the classe:

   

    public class PoJo {
   
        @Id
        protected String id;
   
        protected String url;
   
        public String getId() {
            return id;
        }
   
        public void setId(String id) {
            this.id = id;
        }
   
        public String getUrl() {
            return url;
        }
   
        public void setUrl(String url) {
            this.url = url;
        }
   
        @Override
        public String toString() {
            return "PoJo [id=" + id + ", url=" + url + "]";
        }    
    }

    public class SubPoJo extends PoJo {
   
        private Date created;
   
        public Date getCreated() {
            return created;
        }
   
        public void setCreated(Date created) {
            this.created = created;
        }
   
        @Override
        public String toString() {
            return "PoJo [id=" + id + ", url=" + url + ", created="+created+"]";
        }
    }

and this the Code where the exception occurs:

    MongoClient = new MongoClient(DB_SERVER, PORT);
    DB db = mongoClient.getDB(DATABASE_NAME);
    DBCollection dbColl = db.getCollection(SUBSCRIPTION_TABLE_NAME);

    JacksonDBCollection<PoJo, String> coll = JacksonDBCollection.wrap(dbColl, PoJo.class, String.class);

    // this works:
    SubPoJo pojo = new PoJo();
    pojo.setUrl("test");
    coll.insert(pojo);

    // this doesn't work:
    SubPoJo pojo1 = new SubPoJo();
    pojo1.setUrl("test");
    pojo1.setCreated(new Date());
    coll.insert(pojo1);

[mkr...@trialfire.com]

add the following annotation to your subclass : @JsonIgnoreProperties(ignoreUnknown = true)

[yous...@gmail.com]

So mongojack can't discover subclasses automatic?
I thought, pojo1 would be inserted as SubPoJo not as PoJo?

Best wishes
Josias

btw: this line:

    SubPoJo pojo = new PoJo();


should be replaced by
    PoJo pojo = new PoJo();
copy/past ;-)