摘要
该文研究基于组件技术的异构数据转换系统研究与实现。论文阐述组件模型设计思想和实现步骤,研究原子组件的制作方法以及组装原子组件构造复合转换函数的方法。用组件技术来实现转换函数,可以提高系统的扩展性、通用性和灵活性。当用户在界面上定义从数据源到目标数据库的映射规则时,系统采用映射关系表达式将它们记录下来,系统解析映射关系表达式生成转换规则存入数据库中,再提交给相应的转换模块进行处理。
This paper studies the heterogeneous data converting system based on component technology.It illustrates the design ideas and steps of component modules,studies the design of atomic component and constructs the way of compound converting functions.It uses component technology to design converting functions,which can improve system expansibility,universality and flexibility.When the users defines the mapping rules from source data to destination database on the user interface,the system will use the mapping relation expression to record them and use the parse relation expression to produce converting rules to store in database,and then submit to the corresponding converting modules to process.
出处
《微型电脑应用》
2008年第11期62-64,61,共4页
Microcomputer Applications
关键词
组件技术
转换函数
异构数据系统
复合转换函数
Component technology
Converting function
Heterogeneous data system
Compound converting functions
