code: public List<T> getChildChoices()
  	{
  		final List<T> childChoices = getModelsMap().get(getSelectedRootOption());
  		if (CollectionExtensions.isEmpty(childChoices))
  		{
  			return Collections.emptyList();
  		}
  		return childChoices;
  	}
docs: Gets the child choices.
  
  @return the child choices