Rendering BC4J views as trees in uiXML

Question

Hi all,
I created a JClient that uses a JTree based on BC4J for navigation.
Now it's time for me to create the web client, which should look and behave as
similar as possible as the JClient.
The data that I want to render as a tree is based on 2 view objects that are connected
through a master-detail relationship. It's look about like this:
MasterView: A
DetailView: a
DetailView: b
MasterView: B
DetailView: c
MasterView: C
DetailView: d
I've seen lots of nice new tags for uiXML-BC4J integration in the JDeveloper 9.03 release,
is there (going to be) also one that helps in rendering trees that contain BC4J data?
Or is there a tag that provides similar functionality as the
JUTreeBinding.createTreeNodeTypeBinding() method that I can use to bind views to
the tree?
Maybe I've overlooked something and someone can point me to the right direction. What's
the best way to solve this problem?
Any help is welcome :-)
Mark

Answer 1

We are looking to expand the capabilities of the BC4J UIX binding, including tree support in future.
For now, you can achieve this effect by writing a custom DataProvider, that interacts with the existing set of BC4J UIX tags. You can get the currently scoped view object from the RenderingContext, under the property JboConstants.BC4J_NAMESPACE, JboConstants.VIEW_OBJECT_PROPERTY.
Once you have a handle to the ViewObject, it is relatively straightforward to turn it into whatever data object hierarchy you need for your tree.
Kind Regards,
John Fallows
Oracle Corporation