面向对象的通用数据库访问接口泛化方法研究

Generalization of Object-oriented Universal Database Access Interface

提出了一种面向对象的通用数据库访问接口泛化的方法。通过从数据库系统的数据目录中提取数据字典,将数据库访问请求基于数据字典进行编码来实现数据库访问接口参数的泛化,在数据库接口中通过对泛化后的数据库访问请求解码和查询结果的对象化实现对数据操纵语言和数据查询语言访问的泛化,解决了传统的面向对象的数据库访问接口与数据库结构深度耦和的问题,从而实现了数据库访问接口的标准化和通用化。

A generalization method of object-oriented universal database access interface is proposed.By extracting data dictionary from data catalog of database system and encoding the database access request based on the dictionary,the generalization of database access interface parameters is achieved.In the database interface,the generalization of the data manipulation language and the data query language is achieved by decoding the generalized database access request and the object of the query result,which solves the problem that the traditional object-orented data access interface is deeply coupled with the database structure,thereby realizing the standardization and generalization of the database access interface.