Hi,

I was doing one to many relationship in Hibernate.A 'Person' class
has a one to many relationship with 'Identification' class.

Person contains (one)

1) Personid -primary key
2) FirstName

Identification contains (many)

1) id - primary key
2) personid -foriegn key to Person
3) Username

class person contains a list idlist (of type java.util.List) ,each of its location contains an instance of Identification.Also getLIdentificationist() and
setIdentificationList(list ) methods.

When I load a session for a particular person into the session automatically it takes the value from identification table and stores in idlist of person class.

I set an identification through the setIdentificationList(list )
method of person and I called session.save(person) method.

The values are inserted into person table,but the values to Identification are not inserted.(!! It is possible if I give session.save(identification) aswell )

While selecting it is automatically taken from the identification table but while inserting it is not reflected in table Identification.

Please tell me why this problem comes??????

Nobi

ouch ouch ouch,
note that the following is not a rude answer.

1- read the red card
2- read the reference guide
3- read parent child examples
4- if possible read hibernate in action

there are too many things you're not doing well

trust me, you need to read all this stuff or get commercial training

See you soon with your mapping files after having read the docs

if so, and you assigned id for your object, Hibernate will be confused, and mistake it as a SAVED ONE for the default value of "unsaved-value" is "null". Since your id is not null already, Hibernate makes a RIGHT decision based on "unsaved-value" but , it's a wrong decisin for you.

There is a tempory way to solve it : set "unsaved-value" to "any".

Or, you can give up using "assigned" as the id generator!

(Or you can use an Interceptor, as per the docs.