【摘要】 大量的耗费内存资源的实体对象正在日益成为面向对象软件系统的沉重负担。该文依照面向对象设计的原则,对实体对象的管理问题做出分析,依据“createondemand”的思想,将数据实体设计、载入导出方式以及管理控制策略独立开来,并在典型的设计模式的基础上进行扩展,形成一个基本的设计框架,最后在方案的可重用性、可扩展性、系统的运行效率以及数据的一致性等方面进行了一定的讨论。更多还原

【Abstract】 Large quantity of memory-consuming entity objects are becoming heavy burdens for the object-oriented software systems.This paper analyzes the problem of managing the entity objects based on the rules of object-oriented design,and separates apart the data entity design,the loading -exporting methods and the management strategies according to the thought of″create on demand″.Besides,it also extends some typical design patterns and constructs a fundamental design framework,which is discussed in reusability,extensibility,performance and data consistency.更多还原