创建一个Eclipse插件程序项目。
图3：RUP插件程序库。
要创建一个规则，首先您需要创建一个插件程序。
将您的扩展注册到一个XML插件程序文件中。
打开在本小节的第1部分中被创建的示例插件程序。
Open the example plug-in manifest created in the first part of this section.
向插件程序中添加一个新的扩展，就如同我们在类别时所做的那样。
Add a new extension to the plug-in as we did for the category.
toc插件程序的扩展点将其识别为一个帮助系统的插件程序。
The extension point of the org.eclipse.help.toc plug-in identifies this as a plug-in to the help system.
通过编写简单的插件程序，你将能开发各种各样的代理程序。
You can create multifarious proxy by design simple plug-ins.
如果应用程序已经具备了一种插件框架，那么这种方法将是一个很好的选择。
If your application already has a plug-in framework, this may be a good option.
步骤4：创建插件应用程序。
在应用程序中可以使用任何Rubygem或Rails插件。
You can use any Ruby gem or Rails plug-in you want with your application.
接下来让我们去了解如何将插件用于更复杂的应用程序。
Let's move on to learning how to use the plug-in for more complex applications.
人员插件提供程序(也称为员工目录提供程序)可具有多种配置。
A staff plug-in provider (also known as people directory provider) can have multiple configurations.
不过，我们打算编写一个插件来扩展Sametime客户机应用程序。
However, your intention is to write a plug-in to extend the Sametime client application.
一个典型Grails应用程序的所有部分都在这个插件里。
All of the parts of a typical Grails application are right here in this plug-in.
应用程序框架采用虚拟现实插件技术实现功能的即插即用。
The plugin technology also been adopted in the framework of the development.
应用程序框架采用虚拟现实插件技术实现功能的即插即用。
The plugin technology also been adopted in the framework of the development.
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