The Applied Research of Design Patterns for Data Access
Jing-bin Huang · Microcomputer applications · 2010
This paper firstly discusses the target requirements of the data access design in distributed applications,then analyzes two kinds of design patterns DAO and TOA,finally uses the design patterns to implement a kind of data access middleware base on two-layer components. The first layer uses DAO pattern to build the data access components,it is mainly to shield the process of data access,while the second layer that use TOA pattern to build data assembly component,is to obtain the assembly a number of sub-service data by using data access component.Proved by experiment,the purpose of applicating the design pattern to optimize the structure of the system is abtained.