基于XML的具有性能约束构件的组装技术

采用在软总线TAO(The ACE ORB)上利用XML文档中所包含的语义化的抽象数据类型对构件对象进行操作，从而实现语义化的性能约束构件组装。建构的XML模式描述了构件组装相关的构件接口、交互及配置规约，并通过接口显式地表达构件对环境的依赖，使得能在一个分布式的网络环境里，将多个处于不同节点、提供紧密相关服务的构件在运行时动态地组装成功能系统。在给出的示例中，实现了将三个分布在不同节点的性能约束构件通过它们接口的交互及配置，实现在运行时开放的松散式组装。最后给出了下一步研究工作的重点及方向。

XML based Performance Constraint Component Composition

This paper purposes to achieve the semantic-oriented performance-constraint component composition supported by software bus(TAO) through semantic abstract data type operating component objects.To state interface specification,interconnection specification,configuration specification which constructed in XML schema,it provides an approach to dynamic integrate components which located different nodes and interact with a set of collaborating services through illustrating the environment dependency of a component out of their public interface at runtime in distributed network environment.After that,the given example exploited three distributed performance-constraint components to implement open composition with loosely in terms of interconnection,configuration out of their public interface in runtime.Finally,the conclusion and further research key points are given.