ADF UI: Change Iterator Binding Depend on on LOV

Pre-Requirements: Table Employee and Department in HR schema

Use-case: List of values of all departments and when selection changes all employees in this department will display.

Steps:

• Add method 'public void GetEmployeesInDepartment(Integer departmentId)' to AMImpl
• Add departmentId to bind variable in EmployeeVO in where condition or in view criteria then execute the query.
• Expose the method to client interface.

• Drop DepartmentVO from Data Control into your page then select 'Single Selection' and choice display attribute
• In behavior tab in property inspector:
• Add ValueChanged Listener to a bean method (say xBean).
• In page binding tab:
• Add new 'attributeValues' binding (Select DepartmentVO for iterator and DepartmentId for attribute) to get selected department id.
• Add new 'methodAction' binding(select 'GetEmployeeInDepartment" from AM and set parameter '#{bindings.DepartmentId.inputValue}.
• Drop EmployeeVO from Data Control into your page as form.
• In valueChange Listner method in xBean, Add the following code:

        this.setValueToEL("#{bindings.DepartmentVO.inputValue}", valueChangeEvent.getNewValue()); //Updates the model and binding layer with new selected department

        BindingContainer bc = BindingContext.getCurrent().getCurrentBindingsEntry();

        OperationBinding oper = bc.getOperationBinding("GetEmployeeInDepartment");

        oper.execute();