AbstractAutowireCapableBeanFactory.java 文件源码

/**
 * Apply MergedBeanDefinitionPostProcessors to the specified bean definition,
 * invoking their {@code postProcessMergedBeanDefinition} methods.
 * @param mbd the merged bean definition for the bean
 * @param beanType the actual type of the managed bean instance
 * @param beanName the name of the bean
 * @throws BeansException if any post-processing failed
 * @see MergedBeanDefinitionPostProcessor#postProcessMergedBeanDefinition
 */
protected void applyMergedBeanDefinitionPostProcessors(RootBeanDefinition mbd, Class<?> beanType, String beanName)
        throws BeansException {

    try {
        for (BeanPostProcessor bp : getBeanPostProcessors()) {
            if (bp instanceof MergedBeanDefinitionPostProcessor) {
                MergedBeanDefinitionPostProcessor bdp = (MergedBeanDefinitionPostProcessor) bp;
                bdp.postProcessMergedBeanDefinition(mbd, beanType, beanName);
            }
        }
    }
    catch (Exception ex) {
        throw new BeanCreationException(mbd.getResourceDescription(), beanName,
                "Post-processing failed of bean type [" + beanType + "] failed", ex);
    }
}