利用数据库处理多个对象间的关系

在面向对象的设计中,针对对象实体的保存和管理(增加、修改、删除、查询)较困难的问题,根据数据库管理系统的优点,提出了将数据库与对象的属性联系起来,把数据库运用到面向对象的设计中,解决从对象到数据库的存贮、从数据库到对象的恢复两个问题,再利用数据库处理面向对象的关系解决面向对象设计中类之间的多种关系和继承等独特的特性。该方法简便、实用。

Application of Data Base Management System Used in Object_Oriented Design

For the reason of the difficult to save and manage lots of realities of objects in object_oriented design, such as add,modify,delete,query,based on the advantage of data base management system. The relation of data base management and object attribute, so we can put data base management into oriented object design, and we need to solute two problem:the store of object to data base and data base to object. Because oriented object has some character, such as classes relation and heirship, so we also need to solute them. The method is easy and useful.