// step1, we create a document with owner
Session session = openSession();
session.beginTransaction();
User user = new User();
Document document = new Document();
document.setOwner( user );
session.persist( document );
session.getTransaction().commit();
session.close();
// step2, we verify that the document has owner and that owner has no personal-info; then we detach
session = openSession();
session.beginTransaction();
document = ( Document ) session.get( Document.class, document.getId() );
assertNotNull( document.getOwner() );
assertNull( document.getOwner().getPersonalInfo() );
session.getTransaction().commit();
session.close();
// step3, try to specify the personal-info during detachment
Address addr = new Address();
addr.setStreet1( "123 6th St" );
addr.setCity( "Austin" );
addr.setState( "TX" );
document.getOwner().setPersonalInfo( new PersonalInfo( addr ) );
// step4 we merge the document
session = openSession();
session.beginTransaction();
session.merge( document );
session.getTransaction().commit();
session.close();
// step5, final test
session = openSession();
session.beginTransaction();
document = ( Document ) session.get( Document.class, document.getId() );
assertNotNull( document.getOwner() );
assertNotNull( document.getOwner().getPersonalInfo() );
assertNotNull( document.getOwner().getPersonalInfo().getHomeAddress() );
session.getTransaction().commit();
session.close();
