该工厂方法通过将这项工作委托给服务层来实例化课程对象集合。
This factory method instantiates the collection of course objects by delegating the work to the service layer.
这样做可以确保Seam在找不到要注入的课程对象时不会发出警报。
Doing so ensures Seam will not complain when it cannot find a course object to inject.
该托管bean公开一个高尔夫课程对象集合，然后对管理这些实例的操作做出响应。
This managed bean exposes a collection of golf course objects and then responds to actions for managing those instances.
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