面向方面XML查询技术

Technology on Aspect-oriented XML Querying

提出一种有效的方法对XML文档进行描述,解决原有方法中改变XML文档结点时需要对XML文档结点进行重新编码,并改进结构连接查询效率.提出利用面向方面编程方式对XML文档进行定义.在XML文档定义中引入织入,并通过实现对XMLSchema的扩充,使XML文档定义具有面向方面编程技术的功能,给出相关结构连接算法.方法避免了由于扩充XML文档而对结点重新编码,减少了修改结点信息的次数,提高文档的重用性.提供了不同织入文档情况下的实验结果,比较不同结构连接算法的性能,实验结果表明该文工作有意义.

Proposesd an effective method to describe XML documents and resolve the problem of re-coding XML documents node when XML document nodes are altered in the original method and improve the efficiency of the structured query.With extending the XML Schema,this article introduces weave-in and possess the function of aspect oriented programming technology in XML document and provides relevant structured linke algorithm.The XML document based on the aspect-oriented avoids recoding the node due to the expansion of XML documents and reduces the frequency of node information modification and increases documents reusability.The author provides diverse experiment results of weave-in documents and compares different structured linked algorithm function.The experiment shows the work of this paper is meaningful and the algorithm is fairly effective.