DefaultCategories.java 文件源码

@Override
public void afterPropertiesSet() throws Exception {
    Map<String, Category> beans = applicationContext.getBeansOfType(Category.class);
    Collection<Category> categories = beans.values();

    for (Category category : categories) {
        String name = category.getName();
        Iterable<String> parentNames = category.getParentNames();

        if (Iterables.isEmpty(parentNames)) {
            ascendingHierarchy.put(name, null);
        }
        else {
            for (String parentName : parentNames) {
                ascendingHierarchy.put(name, parentName);
            }
        }
    }
}