Address address = new Address("Foo", "0123", "Bar");
ConvertingParameterAccessor accesor = StubParameterAccessor.getAccessor(converter, "Matthews", address);
DBObject addressDbObject = new BasicDBObject();
converter.write(address, addressDbObject);
addressDbObject.removeField(DefaultMongoTypeMapper.DEFAULT_TYPE_KEY);
DBObject reference = new BasicDBObject("address", addressDbObject);
reference.put("lastname", "Matthews");
org.springframework.data.mongodb.core.query.Query query = mongoQuery.createQuery(accesor);