Walking the results is a simple exercise in using the Iterator interface implemented by ObjectSet.

使用由objectset实现的Iterator接口遍历结果非常简单。

youdao

Once that's all done, I call get() on the db4o database and check to see if the ObjectSet returned contains any objects. This gives me a basic method outline that looks like the one shown in Listing 6

完成这些操作后，对 db4o 数据库调用 get() 并查看返回的 ObjectSet 是否包含任何对象。

youdao