摘要
东营市组织机构代码数据库和扫描库在2001年已经和全省代码数据库共享,通过省中心与国家代码中心数据库联网,汇集了大量分布、异构、多管理域的数据资源,使得网格用户对代码数据的访问变得非常复杂,必须为用户提供行之有效的方法,实现方便、高效、透明、统一的数据访问。该文描述了一种基于包装器—仲裁器(Wrapper-Mediator)[4]方法,这种方法采用虚拟数据集的机制将汇聚在网格中的存储系统抽象成一个虚拟一体化系统,实现了网格数据的统一视图和一种网格环境中的数据统一访问方法。
The organization code database in Dongying and scanning library have already shared with the code database in the whole province.There are a lot of heterogeneous data sources which reside in many administrative domains in Grid,so it is very difficult for users in Grid to access them using current techniques.A new data access method based on the Wrapper-Mediatou is described in the paper.The method adopts the mechanism of virtual data set to abstract the storage system aggregated in the Grid into a virtual unitary system,realizing the united view of grid data and the uniform data access method in one grid environment.
作者
李明
李娜
LI Ming1,LI Na2(1.The Dongying quality technology intendance information,Dongying 257091,China;2.Education department,Dongying Vocational Col-lege,Dongying 257091,China)
出处
《电脑知识与技术》
2009年第4Z期3027-3028,共2页
Computer Knowledge and Technology
