图表数据服务和图表数据更新器都依赖图表数据访问器来从数据存储加载数据,或向其中存储数据。
Both the chart data service and the chart data updater depend on the chart data accessor to load data from or store data to a data store.
让我们进一步了解图表数据更新器的实现,以及如何使用JMS主题连接工厂将服务器事件发布到客户机。
Let's take a close look at the implementation of the chart data updater and how to publish a server event to clients with the JMS topic connection factory.
图表数据更新器的启动、调度和停止是通过调用CommonJ Timer的TimerManager实现的(清单14)。
The start, schedule, and stop of the chart data updater are done by calling TimerManager of CommonJ Timer (Listing 14).
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