在前期编写测试所花费的投入在您应用程序得到较大增长时显得十分值得。
The initial investment of writing tests up front will pay off the larger your application grows in size.
在很多情况下，您都会希望在应用程序中派生一个或多个线程。
In many scenarios, you might want to spawn one or more threads within your application.
如果您希望在应用程序中利用这些新格式的优势，就必须提供这种功能。
You'll need to supply that functionality yourself if you hope to take advantage of these new formats in your applications.
最后，让我们了解一下在您的应用程序中启用云特征会如何影响设计策略。
Finally, let's look at how enabling cloud characteristics in your application can affect design strategies. We're going to examine the following.
对于您的应用程序，您希望它显示在屏幕的右上角。
For your application, you want it to show in the top right corner.
在设备上测试您的应用程序。
为了理解应用程序在加载时的行为，您需要能够了解应用程序服务器环境本身。
To understand how your application behaves under load, you need to be able to see into the application server environment itself.
这就让您可以存储并随后从内存存储恢复全部对象，而不是在您的应用程序内手动重构它们。
This enables you to store and later recover entire objects from the memory cache, instead of reconstructing them by hand within your application.
要确保在您的应用程序中经常发出commit语句。
Be sure to issue the COMMIT statement frequently in your application.
现在可以在您的应用程序中使用它了。
一旦您发现了当今浏览器中的一些可用的特性，就可以在您的应用程序中充分利用这些特性。
Once you detect the available features in today's browsers, you can take advantage of those features in your application.
这还可以确保在您导出应用程序时，在生成的EAR文件中包括您的自定义。
This also ensures that when you export the application, your customizations are included in the resulting EAR file.
在您的应用程序内，所有您需要做的就是将数据源指向rds服务器。
Inside your application, all you need to do is to point your data sources to your RDS server.
而且，如果您的模块足够通用的话，您可以在您开发的其它应用程序中重用代码。
And if your modules are generic enough, you can reuse your code in other applications that you develop.
当然，在您的整个应用程序套件中解决此问题的次数越多，效果就越好。
Of course, the more times this problem is solved across your application suites, the better.
在本文中，您学习了如何使用AMEEAPI在您的应用程序中嵌入环境智能。
In this article, you learned to use the AMEE API to embed environmental intelligence into your applications.
例如，一位用户在您的应用程序中有适当的权限(比如管理员权限)，他想将50个PDF文件从一个服务器发送到另一个服务器。
For example, a user with the appropriate privileges in your application, such as admin, might need to transfer 50 PDFs from one server to another.
选项卡允许您配置在部署应用程序时所需的变量。
The variables TAB enables you to configure the variables you need in deploying applications.
在您需要扩展应用程序远远超越低端服务器硬件容量时，真正的性能优势才会到来。
The real performance benefit comes when you need to scale the application massively well beyond the capacity of low-end server hardware.
在您的产品应用程序中，您可能需要一个更佳的解决方案。
You would probably want a more graceful solution in your production applications.
随着您的应用程序的增长，在您的工作区中以源代码的形式保存整个应用程序可能是不实际或不值得的。
As your application grows, it may not be practical nor desirable to keep your entire application in source form in your workspace.
JPA为在您的应用程序中映射和支持实体提供一个api。
JPA provides an API for managing and persisting the entities in your applications.
EJB 3.0还增加了在您的应用程序中使用面向方面的编程技术这一能力。
EJB 3.0 also adds the ability to use Aspect Oriented Programming techniques in your application.
在您尝试伸缩应用程序时，常遇见的问题是数据库中的写入争用。
A common problem as you try to scale applications is write contention in the database.
也许您喜欢在不牺牲您现有的应用程序基础结构的前提下尝试一个平台方案。
Maybe you would like to try out an alternate platform without sacrificing your existing application infrastructure.
此外，在您构建云应用程序时，不应将重点放在较小的性能优化上。
Also, when you architect for the cloud, it is important not to focus on performance micro-optimization.
在您的应用程序中，不需要过分担心这个问题，不必为此破坏优雅的代码(除非可以证明它确实造成了损害)。
In your applications, don't be too anxious about it or mutilate otherwise elegant code over it (unless you can prove that it is an issue).
这种方法可以通过在您的应用程序中创建小而简单的模块来得到最好的实现。
This approach is best implemented through building small, vertical slices through your application.
学习如何进行简单的计时，并学习在您的应用程序的数据集上测试XPath。
Learn how to do simple timings for yourself, and test XPath on datasets typical for your applications.
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Servlet modeling: Design SIP and converged servlet applications that integrate in the context of your applications.
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