java - Working with Hibernate relationships -

java - Working with Hibernate relationships -

i'm working in hibernate. got 3 entities, that's relationship among them:

user 1 -> n orders 1 -> n order details

how add together row in table "order details" of specific order given user?

i know how add together new row in table orders , order details, that:

user user=(user)session.get(user.class, username); order order=new order(); orderdetails orderdetails=new orderdetails(); orderdetails.setamount(1); order.addorderdetails(orderdetails); user.addorder(order); session.save(user); transaction.commit();

it correct?

but happen when want add together row in table addorderdetails of specific order given user? this?

list<order> o=session.createcriteria(order.class) .add( restrictions.eq("iduser", user) ); o.get(0).addorderdetails(orderdetails);

actually don't know how work tables orders , orders details, should user table? how? using criteria user table can list of users, can not work others tables.

thanks

if have mapping represents relationship, can user , user have set or list elements of type order. can update specific order.

methods have described right short of mistakes (call list() on criteria list example).

java hibernate