code: private void applyMandatoryAction(final WComponent target, final boolean mandatory) {
  		if (target instanceof Mandatable) {
  			((Mandatable) target).setMandatory(mandatory);
  		} else if (target instanceof Container) { // Apply to the Mandatable children
  			Container cont = (Container) target;
  			final int size = cont.getChildCount();
  
  			for (int i = 0; i < size; i++) {
  				WComponent child = cont.getChildAt(i);
  				applyMandatoryAction(child, mandatory);
  			}
  		}
  	}
docs: Apply the mandatory action against the target and its children.
  
  @param target the target of this action
  @param mandatory is the evaluated value