Design and Implementation of Data Access Layer Based on Design Pattern

摘要：

The web system exists different data sources to access, and each data source has specific access ways. According to design patterns and Open-Closed Principle, data access layer is designed that connects business layer to access data layer. The data access layer is realized by factory method and reflection mechanism. In the factory method, reflection mechanism is used to read key-value pairs of the configuration file, and data access class instance is dynamically generated so that the system has a better general performance, scalability and maintainability.

关键词： data access layer design pattern factory method fa?ade pattern reflection mechanism configuration file

作者: Zhimin Li Xiangdong Li Minjie Xia

作者单位: School of Computer Science Zhongyuan University of Technology ZhengZhou.China

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 98-100

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）