https://github.com/FasterXML/jackson-datatype-hibernate: Add-on module for Jackson (http://jackson.codehaus.org) to support Hibernate (http://hibernate.org) version 4.x data types. (FasterXML)
  • Tatu Saloranta
  • Christopher Currie
  • Paul Brown 
package com.fasterxml.jackson.datatype.hibernate4;

import com.fasterxml.jackson.databind.BeanDescription;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializationConfig;
import com.fasterxml.jackson.databind.ser.BeanSerializerModifier;
import com.fasterxml.jackson.databind.type.CollectionType;
import com.fasterxml.jackson.databind.type.MapType;
import org.hibernate.SessionFactory;

public class HibernateSerializerModifier
    extends BeanSerializerModifier
{
    protected final int _features;

    protected final SessionFactory _sessionFactory;

    public HibernateSerializerModifier(int features, SessionFactory sessionFactory) {
        _features = features;
        _sessionFactory = sessionFactory;
    }
    
    /*
    @Override
    public JsonSerializer<?> modifySerializer(SerializationConfig config,
            BeanDescription beanDesc, JsonSerializer<?> serializer) {
        return serializer;
    }
    */

    @Override
    public JsonSerializer<?> modifyCollectionSerializer(SerializationConfig config,
            CollectionType valueType, BeanDescription beanDesc, JsonSerializer<?> serializer) {
        return new PersistentCollectionSerializer(valueType, serializer, _features, _sessionFactory);
    }

    @Override
    public JsonSerializer<?> modifyMapSerializer(SerializationConfig config,
            MapType valueType, BeanDescription beanDesc, JsonSerializer<?> serializer) {
        return new PersistentCollectionSerializer(valueType, serializer, _features, _sessionFactory);
    }
}