ConditionEvaluator.java 文件源码

private ConfigurableListableBeanFactory deduceBeanFactory(BeanDefinitionRegistry source) {
    if (source instanceof ConfigurableListableBeanFactory) {
        return (ConfigurableListableBeanFactory) source;
    }
    if (source instanceof ConfigurableApplicationContext) {
        return (((ConfigurableApplicationContext) source).getBeanFactory());
    }
    return null;
}