UIX- How to use sequence in JDev 10.1.2

Question

Hi,
I have a UIX Page displaying Employees view in a readonly Table format.
Here I hide the employeeId field by setting the rendered property to false.
I create another UIX Page for create/modify employee by dragging and dropping EmployeesView in InputForm Mode.
Here I don't want the user to enter the EmployeeId Field, instead I have a sequence made in the backend which will input value when the before insert row trigger fires.
When I try to set the rendered property for the item in the input form to false I get an error saying the user has to enter value.
How to overcome this? Please help!

Answer 1

If you use ADF BC, you can override the method create(AttributeList) in the Entity Object implementation class (EmployeesImpl.java).
Use: Menu --> Tools --> Override Methods --> create
In the overridden create method you can assign the next value from a DB sequence (e.g. EMP_SEQ) to the ID attribute:
protected void create(AttributeList nameValuePair) {
// Super
super.create(nameValuePair);
// Id
SequenceImpl s = new SequenceImpl("EMP_SEQ", getDBTransaction());
setEmployeeId(s.getSequenceNumber());
}