UDT + Object mapper in DataStax Java Driver

App.java

package com.datastax.demos.alexott.product;

import com.datastax.driver.core.Cluster;
import com.datastax.driver.core.CodecRegistry;
import com.datastax.driver.core.Session;
import com.datastax.driver.mapping.Mapper;
import com.datastax.driver.mapping.MappingManager;

public class App {

	public static void main(String[] args) {
		CodecRegistry codecRegistry = CodecRegistry.DEFAULT_INSTANCE;
		Cluster cluster = Cluster.builder().addContactPoint("127.0.0.1").withCodecRegistry(codecRegistry).build();
		Session session = cluster.connect();

		MappingManager manager = new MappingManager(session);
		Mapper<Product> mapper = manager.mapper(Product.class);
		Product product = mapper.get("test");
		System.out.println("Product: " + product);
		
		session.close();
	}

}

Information.java

package com.datastax.demos.alexott.product;

import com.datastax.driver.mapping.annotations.UDT;

@UDT(keyspace = "test", name = "information")
public class Information {
	String info1;
	String info2;
	
	public String getInfo1() {
		return info1;
	}
	public void setInfo1(String info1) {
		this.info1 = info1;
	}
	public String getInfo2() {
		return info2;
	}
	public void setInfo2(String info2) {
		this.info2 = info2;
	}
	@Override
	public String toString() {
		return "Information [info1=" + info1 + ", info2=" + info2 + "]";
	}
	
}

output

Product: Product [id=test, details={k1=Information [info1=v-info1, info2=v-info2]}, moreDetails=[Information [info1=l-info1, info2=linfo2]]]

Product.java

package com.datastax.demos.alexott.product;

import java.util.List;
import java.util.Map;

import com.datastax.driver.mapping.annotations.Frozen;
import com.datastax.driver.mapping.annotations.FrozenValue;
import com.datastax.driver.mapping.annotations.PartitionKey;
import com.datastax.driver.mapping.annotations.Table;

@Table(keyspace = "test", name = "product")
public class Product {
	@PartitionKey
	String id;
	
	@FrozenValue
	@Frozen
	Map<String, Information> details;
	
	@Frozen
	List<Information> moreDetails;

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public Map<String, Information> getDetails() {
		return details;
	}

	public void setDetails(Map<String, Information> details) {
		this.details = details;
	}

	public List<Information> getMoreDetails() {
		return moreDetails;
	}

	public void setMoreDetails(List<Information> moreDetails) {
		this.moreDetails = moreDetails;
	}
	
	@Override
	public String toString() {
		return "Product [id=" + id + ", details=" + details + ", moreDetails=" + moreDetails + "]";
	}
}

table.cql

create keyspace if not exists test with replication = {'class': 'SimpleStrategy', 'replication_factor': 1};

use test;

create type information (
  info1 text,
  info2 text
);


create table product (
  id text primary key,
  details frozen<map<text, frozen<information>>>,
  moreDetails frozen<list<information>>
);

insert into product(id, details, moreDetails) values('test', {'k1':{info1:'v-info1',info2:'v-info2'}},[{info1:'l-info1',info2:'linfo2'}]);