Dynamic Creation of cascading Lov in oracle ADF or model driven Lov in Oracle ADF.

Requirement – I am working on tricky requirement where i have two child component and one child LOV.How to do that?

Solution- Well if you have working knowledge of cascading LOV in then we pass bind parameter of parent LOV attribute in child LOV View Accessor(VA) . But in this scenario , we have two master LOV. then we will be doing by passing through managed bean, using Application module session .

What i have done.I have used HR schema .

I have 3 view object. one as country table of HR schema.One View object for location table.One view which have all transient attribute and consider to be main view object.

As i found this approach in Jobinesh’s blog- i write a custom method in applicationModuleImpl.java as below –

    public void setLocationIDSessionData(String locId){
          System.out.println("hello 232323&&&"+locId);
        this.getSession().getUserData().put("LocationId", locId);

I have getUserData method of applicationModule interface which returns a java.util.Hashtable which may be used to store user specific context that is related to this application session.

Read all other method related to this

Ok, coming back to this requirement – I used a managed bean in backing bean scope where i executed the binding of applicationModuleImpl custom method as below –

    public void executec(String valueChangeEvent) {
    BindingContext bctx = BindingContext.getCurrent();
           BindingContainer bindings = bctx.getCurrentBindingsEntry();
           OperationBinding op =

Here we are passing the value of both LOV to locationId to custom applicationModuleImpl method.In both parent LOV , i create valuechangeEvent method , which get the current selected countryId and pass to custom applicationModuleImpl method. that is below –

    public void VC(ValueChangeEvent valueChangeEvent) {
      System.out.println("hello &&&"+valueChangeEvent.getNewValue());

    public void vc2(ValueChangeEvent valueChangeEvent) {
        System.out.println("hello &&&34343"+valueChangeEvent.getNewValue());

Now we have final task, we have to set the value of child lov bind parameter in child View Accessor as adf.userSession.userData.LocationId

That’s it.now we will run the jspx , which have all 3 lov.2 parent and one child LOV.
for displaying LOV , we need to click on create button.after click you can see all 3 LOVs.

After selecting county as CH from countryLov1 , we will see different values in location ID.

Now we will select country as IN from countryLov2 , we will see different values in location ID.

You can download the sample application here.


Happy coding with Vinay kumar in techartifact….

RCU – Repository creation Utility for 11g

RCU is used to create repository for various middleware products ie. SOA Suite , Webcenter Suite , Identity Management Suite, Content Management & Weblogic Communication Services , Portal & BI.

If you are working on ADF application with MDS featurs then you will be needing a MDS schema .RCU will create a default schema for MDS.Download
RCU 11g from oracle.com .Downloded file will be File : ofm_rcu_linux_11.
unzip this ofm_rcu_linux_11. file.

UNIX– Launch ./rcu from cd /oracle/rcuHome/bin
Windows – go to Oracle/rcuHome/bin folder and click installer.

Below are the screen shots for rcu Install –

Keep clicking Next and Create until the MDS Database Repository is created.

Now, if you open your database you will notice that new tablespace entries, corresponding to your MDS Repository, have been created

Happy coding with Vinay Kumar in techartifact….