Hi,
I have a table in my database named country and table named address.
When I want to create a new address I get all the countries from the database and show them in a select box. After getting the values from the jsp site I want to create my address, so I add the country to the address and want to save it. One address has exactly one country.
Then I get the exception:
net.sf.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing.

My problem is that I never want to save the country, because it is in the database and I just want to show it in the view and want to add it to a address.

Thanks for your help.

Show your mapping pls.

When you mean to get the "country", do u create new instance of Country and assign it to the adress?

In Java it looks like this:

Struts Action class:
// I get the country oid from the select box from the view
Country country = businessDelegate.getCountryByOid(new Long(Long.parseLong(countryOid)));
address.setCountry(country);
businessDelegate.saveAddress(address);

DAO classes:
public Country getCountryByOid(Long countryOid){
Session session = HibernateUtil.currentSession();
Transaction tx= session.beginTransaction();
country = (Country) session.get(Country.class, countryOid);
tx.commit();
HibernateUtil.closeSession();
...
}

public void saveAddress(Address address){
Session session = HibernateUtil.currentSession();
Transaction tx= session.beginTransaction();
session.save(address);
tx.commit();
HibernateUtil.closeSession();
...
}

Address.java:
private Country country = new Country();
// with setter and getter

Mapping of address:
<many-to-one
name="country"
class="de.woco.moslokal.businessobject.Country"
column="country_id"
unique="true"
cascade="none"
lazy="true"/>

1. In adress java, do not create new Country as;
private Country country = new Country();
let it be private Country country;

2. In DAO part , you dont need a transaction for getting objects

Try now.

juhu, it works :)
thank you very much.