允许用户为离线用户编写消息。
每个客户端都可以编写消息，然后广播给所有其他用户。
Each client can write messages that are then broadcast to all other users.
这降低了解析和编写消息的成本，并且可能改进消息流其他部分中的性能。
This reduces the costs of parsing and writing the message, and might improve performance in other parts of the message flow.
为了减少不确定性或误解，发送方应该考虑接收方在编写消息时的观点。
In order to reduce the uncertainty or misunderstandings, the sender should think the receiver's point of view When composing the message.
此外，不需要用相同的语言编写消息的发送器和接收器，甚至不需要使用相同的平台。
In addition, the sender and receiver of the message don't need to be written in the same language or even use the same platform.
XML提供了在消息中使用任何标准字符集的方法，因此可以像用英语编写消息一样，很容易地用德语或日语编写消息。
XML provides a way to use any standard character set within a message, so you can write a message in English just as easily as you can write it in German or Japanese.
我们的例子使用类型为SOAPMessage的Dispatch，但Dispatch在编写消息方面还支持几种其他API。
Our example USES a dispatch of type SOAPMessage, but dispatches also support several other APIs for composing the message.
如果试图回滚以查找某个人的消息的内容，这种方式就会显得十分笨拙，特别是当几个人几乎同时在线，并且每个人都在抢时间编写消息的时候，这个问题就更为突出。
It gets to be cumbersome to try to scroll back to find out what a person said, especially when several people are on online almost at the same time, each one competing for time to write a message.
此外，您必须手动编写代码以处理消息的有效负载。
Moreover, you must write code manually to deal with the payload of a message.
编写实际用于处理消息的中介代码。
xml域提供了基本的解析和编写工具来检查输入消息是否格式良好，但是却不对其进行验证。
The XML domain provides basic parsing and writing facilities, checks that input messages are well-formed, but does not validate them.
如果没有某个已提供的域适合于特定的消息格式，您可以编写自己的编程或描述解析器，以供您自己的用户定义的域使用。
If a supplied domain is not suitable for a particular message format, you can write your own programmatic or descriptive parser for use by your own user-defined domain.
可以知道，为本月项目的第一部分已经编写的消息程序，可以正确地满足我们的要求。
And it turns out that the message program already written for the first part of this month's project does exactly what we need.
编程方法——编写特定的解析器程序来解析每种消息格式。
Programmatic approach — a specific parser program is written to parse each message format.
由于应用程序是为消息传递接口而编写的，因此当应用程序运行在可编程的设备上时，不需要任何改变。
Since applications are written for a message-passing interface, no changes are required when an application is run on a programmable device.
惟一剩下要做的事情是编写发送消息的代码。
The only thing that remains is to write the code that sends the message.
但是如果您这样做了，您将不得不自己在业务消息中编写代码，实现相互冲突的数据元素。
If you choose this path, though, you will have to write the code to enforce the mutually exclusive arrangements between data items in your business messages.
相反的，用纯函数式语言编写的程序在并发自主的进程中通过传递消息来通信。
Instead, programs written in pure functional languages communicate by passing messages between concurrent, autonomous processes.
这个方法的主要好处是它具有平台和语言独立性，允许您自由地编写JMS客户机来向MOM发送消息。
The major benefit of this approach is that this is platform and language independent and it gives you freedom from writing JMS clients to send messages to MOM.
现在您需要编写代码来显示消息。
新的消息元素设置基元提供了一种简便的方法以更改中介流中的数据以及更新消息，而无需编写自定义的代码或定义xsl转换。
The new message element setter primitive provides an easy way to change data in a mediation flow and update the message without having to write custom code or define XSL transformations.
在这一部分中，我们将编写一个简单的中介来输出传入SOAP消息的内容。
In this section we'll code a simple mediation to print out the contents of an incoming SOAP message.
介绍如何为JMS绑定编写处理各种 JMS消息类型的数据处理插件。
Show you how to write data handling plug-ins to the JMS binding that handle each of the JMS message types.
现在，我们通过编写一个用于修改消息的简单中介处理程序将这一概念付诸实践；我们使用该中介来执行一个简单的文本消息的搜索和替换操作。
We will now put this concept into practice by writing a simple mediation handler to modify messages; the mediation will perform a simple search and replace of text messages.
清单1显示了一个典型的现实示例，给出了一个最终用户能够在其所选的电子邮件客户机中编写的电子邮件消息。
A typical if mundane example, which you saw in Listing 1, is to prepare an E-mail message that the end user can edit in his or her chosen E-mail client.
客户端编写一条到该套接字的消息，服务器处理该消息并编写类型为PSEUDO_MSG_ACK的响应。
The client writes a message to the socket, the server processes the message and writes its response back with type PSEUDO_MSG_ACK.
客户机最初编写为发送简单的文本消息，但将被更新为发送XML消息。
The client was originally written to send a simple text message but will be updated to send an XML message.
例如installnfs脚本，是使用bash编写的，它调用text2osd来显示消息。
For instance, the installNFS script, written in bash, calls text2osd to display messages.
这使得编写访问Web服务消息的中介也更加复杂。
This makes writing mediations that access Web service messages more complex.
我意识到相当好的length_message可以从其它属性上生成，但我感觉如果它由程序员编写，那么消息的复数化以及用短语表达就会更好。
I realize that a pretty good length_message could be generated from the other attributes, but I felt that the pluralization and phrasing of messages would be better if it was written by a programmer.
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