Setting OnParentVersion attribute of a node/property using JCR API

[Prakash Reddy K. L. V.]

Hi all,

According to the JSR-170, the "onParentVersion" attribute of the 
property/node specifies what happens to this property/node if a new 
version of its parent node is checked-in/checked out.
I want to set the "onParentVersion" attribute of the child nodes of a 
versionable node to "COPY" programmatically from my code.
But the problem is I can't find any "setOnParentVersion()" in the JCR api.
I don't want to use jackrabbit specific code since I want my code to 
work with any JSR-170 compliant repository.

I want to do something like this :

          Node parent= root.addNode("parent", "nt:unstructured");
         parent.addMixin("mix:versionable");
         parent.setProperty("anyProperty", "Blah");

          Node child = parent.addNode("child", "nt:unstructured");
          //child.setOnParentVersion(OnParentVersionAction.COPY); This is not 
possible using JCR API. How can it be done?
          child.setProperty("childProp","blah-blah");
         session.save();
         Version firstVersion = parent.checkin();

	  So when the checkin is called on the parent all its child nodes data should also be 
	  saved in the version history.

         
I would really appreciate if someone could suggest how to accomplish this since it is very critical for my project
to get the versionable functionality.

Thanks & Regards,
Prakash Reddy