RocMarshal commented on a change in pull request #11979:
URL: https://github.com/apache/flink/pull/11979#discussion_r422055502
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File path: docs/training/event_driven.zh.md
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@@ -106,21 +104,20 @@ public static class PseudoWindow extends
}
{% endhighlight %}
-Things to be aware of:
+注意事项：
-* There are several types of ProcessFunctions -- this is a
`KeyedProcessFunction`, but there are also
- `CoProcessFunctions`, `BroadcastProcessFunctions`, etc.
+* 有几种类型的 ProcessFunctions -- 不仅包括 `KeyedProcessFunction`， 还包括
+ `CoProcessFunctions`、 `BroadcastProcessFunctions` 等.
-* A `KeyedProcessFunction` is a kind of `RichFunction`. Being a
`RichFunction`, it has access to the `open`
- and `getRuntimeContext` methods needed for working with managed keyed state.
+* `KeyedProcessFunction` 是一种 `RichFunction`。作为 `RichFunction`，它可以访问使用 Managed
Keyed State 所需的 `open`
+ 和 `getRuntimeContext` 方法。
-* There are two callbacks to implement: `processElement` and `onTimer`.
`processElement` is called
- with each incoming event; `onTimer` is called when timers fire. These can be
either event time or
- processing time timers. Both `processElement` and `onTimer` are provided
with a context object
- that can be used to interact with a `TimerService` (among other things).
Both callbacks are also
- passed a `Collector` that can be used to emit results.
+* 有两个回调方法须要实现： `processElement` 和 `onTimer`。`processElement` 与每个传入事件一起调用；
+ 当计时器触发时调用 `onTimer`。它们可以是事件时间（event time）timer，也可以是处理时间（processing
time）timer。
+ `processElement` 和 `onTimer` 都提供了一个上下文对象，该对象可用于与 `TimerService` 交互（除其他外）。
+ 这两个回调还传递了一个可用于发出结果的 `Collector`。
-#### The `open()` method
+#### `open()` 方法
{% highlight java %}
// Keyed, managed state, with an entry for each window, keyed by the window's
end time.
Review comment:
@klion26
I have translated the comments into Chinese.
Sincerely,
Roc
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