几种基于XML的流式文档访问方式分析

Analysis of methods to access XML-based fluid office documents

针对基于XML格式的流式文档访问技术复杂且难以屏蔽底层格式差异的问题,对当前主要面向流式文档的访问技术进行了深入地比较并分析了其运行原理、实现过程以及互操作性,其中包括文档对象模型(DOM)、XQuery、相应文档格式的API/SDK以及文档查询语言(ODQ)等。研究分析与实践结果表明,用ODQ对流式文档进行访问,可实现格式无关性,方便用户使用、二次开发和互操作;ODQ便于构造文档网络处理协议,有利于实现流式文档的远程访问,为流式文档的网络集成应用与协同办公奠定了基础。

As it is hard to shield the difference in document formats and to reduce the technical complexity when accessing the documents, an in-depth research is made on the methods to access the XML-based fluid documents on the respects of their princi- ples, implementations, and interoperability performance, e.g. document object model （IX）M）, XQuery, API/SDK, and open document query （ODQ）. The result shows that ODQ has advantage in format independence, and can facilitate users to develop the documents processing systems with good interoperability. Moreover, ODQ makes it easy to design network protocols to im- plement remote document access, which lays the foundation for network oriented document application integration and document collaboration.