ADF Basics: Set multiple LOV's on attribute and conditionally switch using LOV Switcher

This post is about a very basic and common use case
Suppose we have to show different values in our List depending on some condition but all values must be stored in same attribute so for this type of requirement ADF BC framework provides concept of LOV Switcher
Framework allows us to define multiple LOV on same attribute, I hope you all know about defining LOV(List of Values) so move ahead and see how to use lov switcher

 See the implementation part-

• Created a Fusion Web Application and a viewObject to show LOV on viewport (Used dual to create view object for this example , you can use use your own)








• Created 2 more viewObject to apply LOV on first viewObject's attribute, One ViewObject is for Departments and other one is for Employees






• Open dual viewObject select LovAppl attribute and goto ListOfValues tab and add both LOV
  For Department - DepartmentId is List Attribute and DepartmentName will be shown on UI




For Employees- EmployeeId is List Attribute and FirstName,LastName will be shown on UI






• Now click on green plus icon of List Of Values Switcher and add a transient attribute , this will be further used to switch lov on base of some condition





• So created LovSwitcher attribute , and remember this switcher attribute value should be one of the LOV Name that are applied on attribute.
  Here i am using a condition - if LovType attribute of Dual viewObject is 'D' the LovAppl should show Departments Lov and if it is 'E' then LovAppl should show Employees Lov
  For this i have written expression for lov switcher attribute
  LovType=='D' ? 'LOV_LovAppl' : LovType=='E' ? 'LOV_LovAppl1' : null





• Now run Application Module and check it

Thanks , Happy Learning :)

Using af:switcher in ADF Faces to dynamically render page components

Hello all,,
Sometimes we need to display page components on a condition basis , this can be achieved in adf using af:switcher component
Normally switcher component is a collection of multiple facets and on a given condition it decides that which facet should be rendered.

How to use af:switcher- see the steps

• Create a Fusion web application and create business components using Departments and Employees table (HR Schema)

•  Now create a page in view Controller and drop a switcher component from component palette

• Switcher is pure server side component so it doesn't have any client representation, so next move is to add facets in af:switcher, to add facets in switcher,
  just right click--insert inside af:switcher-- facet

• As in this tutorial i am going to show 2 tables(Departments U& Employees) so added 2 facets in af:switcher

• Now time to drop tables in corresponding facets, Employees Table in Emp, Departments Table in Dept

•  Now i have created a static List that has values D for Departments and E for Employees, when user selects D the Departments table will be shown and for E Employees table will be shown

• to do this select af:switcher and go to FacetName property and open expression builder to write conditional expression

•  Now run this page and select values in list to see- how switcher works

  Download Sample App Cheers :-)