CreateCacheAnnotationBeanPostProcessor.java 文件源码

private InjectionMetadata buildAutowiringMetadata(final Class<?> clazz) {
    LinkedList<InjectionMetadata.InjectedElement> elements = new LinkedList<InjectionMetadata.InjectedElement>();
    Class<?> targetClass = clazz;

    do {
        final LinkedList<InjectionMetadata.InjectedElement> currElements =
                new LinkedList<InjectionMetadata.InjectedElement>();

        doWithLocalFields(targetClass, new ReflectionUtils.FieldCallback() {
            @Override
            public void doWith(Field field) throws IllegalArgumentException, IllegalAccessException {
                CreateCache ann = field.getAnnotation(CreateCache.class);
                if (ann != null) {
                    if (Modifier.isStatic(field.getModifiers())) {
                        if (logger.isWarnEnabled()) {
                            logger.warn("Autowired annotation is not supported on static fields: " + field);
                        }
                        return;
                    }
                    currElements.add(new AutowiredFieldElement(field, ann));
                }
            }
        });

        elements.addAll(0, currElements);
        targetClass = targetClass.getSuperclass();
    }
    while (targetClass != null && targetClass != Object.class);

    return new InjectionMetadata(clazz, elements);
}