Hi,

I have two classes one is Person and another one is car.

public class Person {
protected int oid;//key column
protected String name;
protected Car car;

public Person() {
}

public int getOid() {
return oid;
}

public void setOid(int oid) {
this.oid = oid;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}
public Car getCar() {
return car;
}

public void setCar(Car car) {
this.car = car;
}
}//Person class end

public class Car{
protected int oid;//key column
protected String carName;

public Car(){
}

public int getOid() {
return oid;
}

public void setOid(int oid) {
this.oid = oid;
}

public String getCarName() {
return carName;
}

public void setCarName(String carName) {
this.carName = carName;
}
}//Car class end

Now i am creating one new Person object which is referencing already persisted Car objects.[This Car object is not avilabel in current session, but it is there in database.]
Person person = new Person();
person.setName("Person2");

//This car object is already present in Database with oid 1.
Car car = new Car();
car.setOid(1);
car.setCarName("car1");
person.setCar(car);

Transaction tx = session.beginTransaction(); // Start Transaction
session.save(person);
session.flush();
tx.commit();

in this case it is creating one new insert for Person and one update for Car object.

Here i want to create one insert only for person. Here i don't want any update for car as i know this is already persisted.

So how can i achieve this in hibernate.