PDP 也可以调用 策略信息点(PIP)服务检索与主体、资源或者环境有关的属性值。
The PDP may also invoke the Policy Information Point (PIP) service to retrieve the attribute values related to the subject, the resource, or the environment.
Bloglines API 使用基本 HTTP 操作来检索关于用户的 blogroll 和订阅资源的当前状态信息。
The Bloglines API uses basic HTTP operations to retrieve current status information about a user's blogroll and subscription resources.
特殊页面常用来生成信息,不管信息是从数据库还是其他资源检索而来,在本文中就制作了一个特殊页来显示系统的某些统计信息。
Special pages are often used to generate information, whether retrieved from a database or other source, so you made one that displays some of the system's statistics.
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