I am fairly new to Hibernate, and hopefully this is possible. I have two objects: An Issue.java, and a Customer.java. Their tables look like so:


-Issue Table-
---------------------------------
ID | fieldA | fieldB ...
---------------------------------

- Customer Table -
---------------------------------
ID | fieldA | fieldB ...
---------------------------------


They share primary key associations. If an issue's ID = 7, it's customer's ID = 7, and they are *always* one to one -- our requirements are that whenever there is an issue, also a customer. Our dba's won't let us just keep them as one table :[

Is there a way I can do something like this?

Issue issue = new Issue();
// ... populate the issue...

session.save(issue);

And have to it not only create a record in the Issue table, but also take the ID it just auto-gened in the id table, and set that id to a new row in the customer table?

Or do we *have* to do something like this:

issue = new Issue();
// ...
session.save(issue);
customer = new Customer();
customer.setIssue(issue);
session.save(customer);

We have tried many variations on foreign key generators and one-to-one mappings between our issue and customer file and can't seem to get these creates to automagically cascade in one call. Thanks very much if any one can help, or just fer reading my post through! :),

Jim[/code]

Sure it's easy. It's so easy that Hibernate doesn't even do it for you.In your hibernate mapping for Customer, set the id generator to "foreign". In your hibernate mapping for Issue, set the cascade on the one-to-one to Customer to "all", or at least "save". Then when session.save(issue) is called, hibernate saves the issue, cascade-saves the customer, and gets the customer id from the property at the other end of the one-to-one (the id, of course).

It worked :)

Good to hear. A click on the Yes link on the relevant post would be appreciated.

I clicked the yes button -- thanks again! :)