I'm a beginner and I don't figure how to update 2 simple tables:
I have one table Person and the other Phone.The Person table has a name, a surname etc. The Phone table has a number and a description.
Between the 2 tables is a one to many relation. A person has one or more phone numbers.

I don't know how I must do when I have to update a person information , adding it another phone number.My ideea was that I have to find out what phones corespod to that persons , put it in a set and in the end add to that set the new phone number and update the both tables.
I need to know what is the normal way of doing that cause I'm sure I'm not doing the things right.



java.util.Collection<Phone> phoneSet=new HashSet<Phone>();
session=sessionFactory.openSession();
Phone ph=new Phone();

for(Phone phone: person.getPhones()){
ph.setId(phone.getId());
ph.setName(phone.getName());
ph.setSurname(phone.getSurname());
phoneSet.add(ph);
ph=new Phone();
}

session.close()

phoneSet.add(newPhone);

Create the Person.
Create the Phone.
Add the phone to the person using a setter.

Save the phone.
Save the person.

The phone and the person will be saved, along with the relationship between the two of them.

Go for it!

As for me, usually, problem of using hibernate happens in hbm.xml file. so if you can paste it, may be solved more concretely,


if you want to save person, and implicitly save the phone to that table, maybe you would append "cascade" with its value in terms of your need actual

Yes but the problem is that if I would do like that , I would lose the other phones that I have already entered previously and that are coresponding to the person I choose to update . I lose the foreign keys to be more exactly.