<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC
  "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
  "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
    <class name="hibernateoobdemo.pojos.Car" table="Car">
        <id name="carno" column="carnum" type="integer">
            <generator class="native"></generator>
        </id>
        <property name="carname" type="string" column="carname"></property>
        <many-to-one name="person" class="hibernateoobdemo.pojos.Person" cascade="all" unique="true"></many-to-one>
    </class>
</hibernate-mapping>

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC
  "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
  "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
    <class name="hibernateoobdemo.pojos.Person" table="Person">
        <id name="code" type="integer">
            <generator class="native"></generator>
        </id>
        <property name="name" type="string" column="name"></property>
        <one-to-one name="car" class="hibernateoobdemo.pojos.Car" property-ref="person"></one-to-one>
    </class>
</hibernate-mapping>

package hibernateoobdemo;

import org.hibernate.*;
import org.hibernate.cfg.*;
import hibernateoobdemo.pojos.*;

public class Hibernateoobdemo
{

    public static void main(String[] args)
    {
        SessionFactory sf=new Configuration().configure().buildSessionFactory();
        Session session=sf.openSession();
        Transaction t=session.beginTransaction();
        t.begin();
        Car car=new Car();
        car.setCarname("AUDI");
       
        Person person=new Person();
        person.setName("Ravi");
        car.setPerson(person);
        person.setCar(car);
        session.save(person);
       
        t.commit();
        session.close();
    }
}

package hibernateoobdemo.pojos;

public class Car
{
    private int carno;
    private String carname;
    private Person person;

    public int getCarno() {
        return carno;
    }

    public String getCarname() {
        return carname;
    }

    public Person getPerson() {
        return person;
    }

    public void setCarno(int carno) {
        this.carno = carno;
    }

    public void setCarname(String carname) {
        this.carname = carname;
    }

    public void setPerson(Person person) {
        this.person = person;
    }
   
}

package hibernateoobdemo.pojos;

public class Person
{
    private int code;
    private String name;
    private Car car;

    public int getCode() {
        return code;
    }

    public String getName() {
        return name;
    }

    public Car getCar() {
        return car;
    }

    public void setCode(int code) {
        this.code = code;
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setCar(Car car) {
        this.car = car;
    }
   
   
   
}