业务逻辑被实现为一个POJO集合，并通过一个声明性blueprint . xml配置文件将bean定义和引用与osgi服务关联起来。
The business logic is implemented as a collection of POJOs with a declarative blueprint.xml configuration file to associate bean definitions and references with OSGi services.
对于源代码的一项更实质性的限制是不能引用在所添加的声明或者块外声明的局部变量。
A more substantial limitation on the source code is that there's no way to refer to local variables declared outside the statement or block being added.
服务版本—为功能性和非功能性规范提供引用相关SLD的服务功能的正式声明。
Service Version — Provides a formal statement of the service capabilities referencing an associated SLD for the functional and non-functional specification.
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