摘要
在大型企业应用软件系统开发中，常需面对不同类型数据源，由于异类数据源的访问机制不同，异类数据源的存在给程序开发和维护带来困难。为解决该问题，设计一基于设计模式的通用数据层访问组件模型，文中以系统重构前后如何适应多数据库为例进行说明。
We often deal with problem of different type data sources when design a enterprising application, which brings a lot of troubles to the development and maintenance of system because of different data sources have different access mechanism. A general data layer component model was designed and implemented in patter model.
作者
邹官辉
龙军
ZOU Guan-hui, LONG Jun （School of Information Science and Engineering, Central South University, Changsha 410083, China）
出处
《电脑知识与技术》
2011年第3期1503-1506,共4页
Computer Knowledge and Technology
