How to properly set bind variables

Question

Dear All,
I am currently confused about how to properly set my Bind Variables
I have this view using HR standard schema
Select *
from Employees
where EMPLOYEE_ID = :EMP_IDI somehow see three options on how to use this bind variable in an application module.
Option 1:
ViewObjectImpl view = this.getEmployeesView();
VariableValueManager vm = view.ensureVariableManager();
vm.setVariableValue("EMP_ID", value);
view.executeQuery();Option 2:
ViewObjectImpl view = this.getEmployeesView();
view.setNamedWhereClauseParam("EMP_ID", value);
view.executeQuery();Option 3:
EmployeeViewImpl empView =this.getEmployeesView();
RowSetIterator it = empView.createRowSetIterator(null);
empView.setEmployeeId(value);
empView.executeQuery();Question is which is which and what should I use?
JDEV 11G PS3

Answer 1

I use is this
DCIteratorBinding iteratorStatus = Util.getIterator("NameIterator");
operationBinding.execute();
Util is reserved in a class.
public static DCIteratorBinding getIterator(String iteratorName){
return getDCBindings().findIteratorBinding(iteratorName);
}