For example, suppose that you have a class that stores user information and service information in two separate hash tables, as shown in Listing 3.
例如，假设您有一个类，它用两个单独的散列表来存储用户信息和服务信息，如清单3所示。
2
Even if WLM is not explicitly used (that is, no service classes are defined by the database administrator), all user transactions are executed within the context of the predefined serviceclass.
This class makes use of a Zend_Http_Client object, which is provided with the necessary user authentication information and used to open an authenticated connection to the Google Contacts service.
这个类使用了一个 Zend_Http_Client 对象，该对象是与必要的用户身份认证信息一起提供的，用于打开一个到 Google Contacts 服务的已验证连接。