How to programmatically retrieve the real field name from a view object ?

Question

Dear all,
when I map a business component (a database table) to a view, the fields are automatically converted by JDeveloper, for example, a field named 'user_id' in the oracle table definition, becomes 'userid' in the view.
The question: how can I retrieve the right table column name from within a backing bean ? Please explain also what should I bind and how; should I use an iterator ?
Another more: since we can change the label of a field on a view, how can then I get the mapping between the column name on the view and the column name on the table in the database ?
Thanks in advance,
Sergio.

Answer 1

Hi Timo,
many thanks for your answer.
The rest of my question: you know we can drop a view from the DataControls onto a ADF page, with each field of the table having a label.
That label is initially set like the internal table field name, so for instance, if user_id is the real table field name, userid will be the (by JDeveloper) internal renamed table field name, and the label would be userid too.
If I then change the label text to, for example, "myUserid", the question is: how can I know which real table field does "myUserid" point to ?
In other words, when my form is submitted, I want to know which field name has been changed and prepare an update sql in a bean.
For this purpose I bind each view field to a validator function in the bean, and collect al the pairs "label_name + submitted value" in an hash table.
Now inorder to build up that update query, I need the mapping between the label_name ("myUserid") and the real table field name ("user_id"). The question: how to map the label to the real table field name ?
By the way, I'm using JDeveloper 11g rel. 2.
Regards,
Sergio.