How to handle Radio Button Groups in OAF

If we want our radio buttons to behave as a groupwe must programitically give same name using setName() method for each radion button.
 
ex: In CO PR:      while page rendering we have to make all radio buttons as group like below.

OAMessageRadioButtonBean appleButton=(OAMessageRadioButtonBean )webBean.findChildRecursive("appleId");
appleButton.setName("fruitRadioGroup");
appleButton.setValue("apples");


OAMessageRadioButtonBean orangeButton =(OAMessageRadioButtonBean )webBean.findChildRecursive("orangeId");
orangeButton.setName("fruitRadioGroup");
orangeButton.setValue("oranges");



in CFR CO:


String value= pageContext.getParameter("fruitRadioGroup");