根区域——这些区域提供“根”服务器的列表，根服务器包含有关Internet上的子域及其委托记录的信息。

Root zones — These provide the list of 'root' servers that hold information about subdomains on the Internet and their delegation records.

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支持Bean将添加事件请求处理工作委托给无状态会话Bean EventServiceEJB，并将列表和保存事件委托给一个EventService实现。

The backing bean delegates add event request processing to the EventServiceEJB Stateless Session bean, and delegates listing and saving events to an EventService implementation.

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此策略意味着控件不需要维护事件通知的目标对象列表——委托可处理所有的注册和通知。

This strategy means that the control does not need to maintain a list of target objects for event notification-the delegate handles all registration and notification.

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