东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (2): 157-160.DOI: -

• 论著 • 上一篇    下一篇

面向对象XML存储性能分析

张晓琳;谭跃生;张军;王国仁;   

  1. 东北大学信息科学与工程学院;内蒙古科技大学网络中心;内蒙古科技大学网络中心;东北大学信息科学与工程学院 辽宁沈阳110004;内蒙古包头014010;内蒙古包头014010;辽宁沈阳110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-02-15 发布日期:2013-06-23
  • 通讯作者: Zhang, X.-L.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(60273079);;

Storability analysis of object-oriented XML data

Zhang, Xiao-Lin (1); Tan, Yue-Sheng (2); Zhang, Jun (2); Wang, Guo-Ren (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China; (2) Network Center, Inner Mongolia University of Science and Technology, Baotou 014010, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-02-15 Published:2013-06-23
  • Contact: Zhang, X.-L.
  • About author:-
  • Supported by:
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摘要： 针对面向对象XML数据的两种存储模式:集中式和分布式,基于两种存储模式的存储结构信息的路径仓和存储XML数据的数据仓,分别设计并实现了面向对象XML的查询代数.采用支持继承的扩展XML-RL查询语言,使用多态元素、多态引用、独占元素和独占引用四种典型查询,分析了两种存储模式的性能.结果表明查询多态元素和独占元素时,集中式优于分布式,而查询多态引用和独占引用时分布式优于集中式.

关键词: 面向对象的XML, 路径仓, 数据仓, XML-RL

Abstract: Aiming at the two storage models for object-oriented XML data, i.e. centralized and decentralized, the query algebra for object-oriented XML is designed and implemented on the bases of their respective path repositories of XML structure information and data repositories of XML data. Introducing extended XML-RL query language to support inheritance, the storability of two models is analyzed by four typical queries including polymorphic element, polymorphic reference, monomorphic element and monomorphic reference. The result indicates that the centralized storage model outperforms the decentralized one at polymorphic element and monomorphic element queries and vice at polymorphic reference and monomorphic reference queries.

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