import com.mongodb.ConnectionString;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
import org.bson.BsonType;
import org.bson.codecs.pojo.PojoCodecProvider;
import org.bson.codecs.pojo.annotations.*;

import java.util.List;

import static com.mongodb.MongoClientSettings.getDefaultCodecRegistry;
import static org.bson.codecs.configuration.CodecRegistries.fromProviders;
import static org.bson.codecs.configuration.CodecRegistries.fromRegistries;

public class PojoTest {
     public static void main(String[] args) {
        var connectionString = new ConnectionString("mongodb://localhost:27017/pojo_test");
        try (MongoClient client = MongoClients.create(connectionString)) {
            var database = client.getDatabase(connectionString.getDatabase())
                                    .withCodecRegistry(fromRegistries(getDefaultCodecRegistry(), fromProviders(PojoCodecProvider.builder().automatic(true).build())));

            database.getCollection("products", Product.class).insertOne(new Product("testModel"));

            System.out.println(database.getCollection("products").find().first().toJson());
         }
    }

        @BsonDiscriminator(value = "AnnotatedProduct", key = "_cls")
        public static class Product {
            @BsonProperty("modelName")
            private String name;

            @BsonId
            @BsonRepresentation(BsonType.OBJECT_ID)
            private String serialNumber;

            @BsonIgnore
            private List<Product> relatedItems;

            @BsonCreator
            public Product(@BsonProperty("modelName") String name) {
                this.name = name;
            }
    }
}