The callback is called the event handler.
回调被称为事件处理器。
Your window procedure is the event handler.
窗口过程就是事件处理器。
This invoke activity calls the event handler.
此调用活动将调用事件处理程序。
ReviewStartRequest. Input variable to the event handler.
reviewStartRequest事件处理程序的输入变量。
Part 2: What actions does the event handler have to take?
第2部分：事件处理程序必须进行何种操作？
We'll look at each part of the event handler definition
我们接下来将讨论事件处理程序的各个部分
In the example above, the event handler contained a human task.
在上面的示例中，事件处理程序包含一项手工任务。
Within the event handler, be sure to accomplish the following.
在事件处理程序内，请确保完成以下事项。
This creates a variable that is local to the event handler instance.
这将创建一个事件处理程序实例的局部变量。
If a review is finished, the event handler decrements this variable.
如果审阅完成，事件处理程序会对此变量进行递减。
You set up the event handler to accept the callback from the service.
可以设置事件处理程序来接收来自服务的回调。
The application logic (in BestDeal) is kept separate from the event handler.
应用程序逻辑(在BestDeal中)与事件处理器保持分离。
Listing 3 shows the code snippet getting the event handler by a process instance ID.
清单3显示的代码片段根据流程实例ID获取事件处理程序。
WS-BPEL specifies another construct to deal with external events: the event handler.
WS - BPEL指定了另一个构造来处理外部事件：事件处理程序。
Control passes immediately to the event handler and doesn't return until it's done executing.
控制立即传到事件处理器，并且不会返回，除非处理完成。
Another variation deals with the activities that are contained in the body of the event handler.
另一个模式变体处理事件处理程序体中包含的活动。
This might include the event hooks, the event handler, the error methods, and the timer methods.
这可能包括事件关联函数、事件处理函数、错误方法和计时器方法。
Multiple instances of the event handler may be active, while variables VP and VM have only one instance.
事件处理程序可能有多个实例处于活动状态，而变量VP和VM只能具有一个实例。
If the global scope requires the result of the event handler, set the result in the global result variable.
如果全局范围要求使用事件处理程序的结果，请在全局结果变量中设置该结果。
This article described how to design processes to implement the cancellation function with the event handler.
本文描述如何设计使用事件处理程序来实现取消操作的流程。
The innocent-looking parse method triggers parsing of the XML document which, in turn, calls the event handler.
看似无关的parse方法触发对XML文档的语法分析，这导致了调用事件处理器。
The cancellation action is regarded as an inbound message that can trigger the event handler of the process scope.
取消动作被视为一条入站消息，可以触发流程作用域的事件处理程序。
Figure 8 shows a fragment of code from the event handler that responds to a user's request to change languages.
图8显示事件处理程序中响应用户的更改语言请求的代码片段。
The rationale for this is that the event handler must be able to access the variable that holds the incoming message.
这样做的根本原因是，事件处理程序必须能够访问保存传入消息的变量。
Then, Seam passes the entity bean into the event handler session bean, which is also created by Seam, for processing.
然后，Seam将实体bean传入同样被Seam构造的事件处理器会话bean中来处理。
Composite activities like flow or sequence are especially useful to specify the actions taken within the event handler.
流或序列之类的组合活动在指定事件处理程序内所进行的操作时尤为有用。
Notice that the event handler receives the element name, namespace and attribute lists as parameters from the parser.
请注意，事件处理器接收元素名称、名称空间和属性列表作为来自语法分析器的参数。
In this case, instead of invoking the receive activity in the main scope, we have to raise a fault in the event handler.
在这种情况下，不要调用主范围中的接收活动，而必须在事件处理程序中引发一个错误。
When it finds a price-quote element, the event handler extracts the vendor name and the price from the list of attributes.
当事件处理器发现price - quote元素时，它从属性列表中抽取供应商名称和价格。
This is an example of immediate event handling, since the whole form is not validated before the event handler is invoked.
这是一个即时事件处理的例子，因为整个表单没有在调用事件处理程序之前进行有效性验证。
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