code: public BeanDefinitionHolder decorateBeanDefinitionIfRequired(Element ele,
        BeanDefinitionHolder definitionHolder) {
      return decorateBeanDefinitionIfRequired(ele, definitionHolder, null);
    }
docs: <p>
  decorateBeanDefinitionIfRequired.
  </p>
  
  @param ele a {@link org.w3c.dom.Element} object.
  @param definitionHolder a {@link org.springframework.beans.factory.config.BeanDefinitionHolder}
  object.
  @return a {@link org.springframework.beans.factory.config.BeanDefinitionHolder} object.