动态和XML实例化的数据访问环境

M. Vlachos, G. Stassinopoulos
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引用次数: 0

摘要

本文的目的是提出一种在XML语言的帮助下定义数据库导航规则的方法。这就引入了动态应用服务器的概念——可以借助相关的“数据库描述性”XML文档实例化这种服务器,并从中获得在特定数据库上执行查询所需的所有知识。为了支持这些思想,本文提出了几个层次模型:业务应用信息模型、数据库模型和数据库导航模型。最后,将这些模型集成到一个具体的模型中,该模型简化了三层业务应用程序的定义和创建,其主要特点是易于适应任何遗留数据库。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A dynamic and XML instantiated data accessing environment
The purpose of this paper is to propose a methodology for defining database navigation rules with the help of the XML language. This enables the introduction of the concept of the dynamic application server - a server that can be instantiated with the help of a relevant, "database-descriptive" XML document and acquire from it all the necessary knowledge for performing queries on the particular database. In order to support those ideas, the paper presents several hierarchical models: business application information model, database model and database navigation model. In the end, those models are integrated into a single, concrete model that eases the definition and creation of three-tier business applications, whose main characteristic is the easy adaptation to any legacy database.
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