AbstractNestedCondition.java 文件源码

@SuppressWarnings("unchecked")
private List<String[]> getConditionClasses(AnnotatedTypeMetadata metadata) {
    MultiValueMap<String, Object> attributes = metadata
            .getAllAnnotationAttributes(Conditional.class.getName(), true);
    Object values = (attributes != null ? attributes.get("value") : null);
    return (List<String[]>) (values != null ? values : Collections.emptyList());
}