当前提供这种支持的AOP系统实现了这一点，它们是通过扩展不同签名样式的定义来指定注释类型和属性的方式实现的。
The current AOP systems that offer such support do so by extending the definition for various signature patterns to allow annotation types and properties to be specified.
EJB 3.0规范允许您省略所有的注释，前提是对实现类进行正确的注释并且只实现一个接口。
The EJB 3.0 specification allows you to omit the annotation altogether as long as your implementation class is properly annotated and only implements one interface.
在将此组件包装以便重复分发之前，我们所需做的只是注释掉 @include行，但前提是用户应用程序会提供我们所需的数据库配置。
Before packaging this component for redistribution, we would just comment out the @include line, assuming that the consumer's application will provide the database configuration we need.
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