A dynamic object behavior model based on computational reflection is proposed. This model consists of function level and meta level, the meta objects in meta level manage the base objects and behaviors in function lev...A dynamic object behavior model based on computational reflection is proposed. This model consists of function level and meta level, the meta objects in meta level manage the base objects and behaviors in function level, including dynamic binding and unbinding of base object and behavior. We implement this model with RoleJava Language,which is our self linguistic extension of the Java Language.Meta Objects are generated automatically at compile\|time,this makes the reflecton mechanism transparent to programmers.Finally an example applying this model to a banking system is presented.展开更多
Based on dominant degree of role model among the viewpoints for object oriented modeling process, it dissertates that role modeling is a modeling method for software pattern at knowledge level. After giving some examp...Based on dominant degree of role model among the viewpoints for object oriented modeling process, it dissertates that role modeling is a modeling method for software pattern at knowledge level. After giving some examples for modeling design pattern and analysis pattern at knowledge level using role model, it presents a process for refining design pattern from role model to class model and event trace diagram of UML. In this paper, we advocate the opinion that role modeling before object modeling of UML.展开更多
对于大型管理信息系统,特别是系统用户数多,任务流动性较大的情形,用户权限管理是一个复杂并难以维护的问题.在分析RBAC(R o le-B ased A ccess Con tro l)用户权限管理的理论基础上,提出了一种基于角色及对象关联的权限控制策略,有效...对于大型管理信息系统,特别是系统用户数多,任务流动性较大的情形,用户权限管理是一个复杂并难以维护的问题.在分析RBAC(R o le-B ased A ccess Con tro l)用户权限管理的理论基础上,提出了一种基于角色及对象关联的权限控制策略,有效地解决了应用级权限管理问题,增强了系统权限管理的灵活性和方便性.展开更多
基金Supported by the National Natural Science Foundation of China(60373086)
文摘A dynamic object behavior model based on computational reflection is proposed. This model consists of function level and meta level, the meta objects in meta level manage the base objects and behaviors in function level, including dynamic binding and unbinding of base object and behavior. We implement this model with RoleJava Language,which is our self linguistic extension of the Java Language.Meta Objects are generated automatically at compile\|time,this makes the reflecton mechanism transparent to programmers.Finally an example applying this model to a banking system is presented.
基金The research has gained the stake of Middleware Software Division of Software Group of F ujitsu L imitedJapanThe Project T
文摘Based on dominant degree of role model among the viewpoints for object oriented modeling process, it dissertates that role modeling is a modeling method for software pattern at knowledge level. After giving some examples for modeling design pattern and analysis pattern at knowledge level using role model, it presents a process for refining design pattern from role model to class model and event trace diagram of UML. In this paper, we advocate the opinion that role modeling before object modeling of UML.
文摘对于大型管理信息系统,特别是系统用户数多,任务流动性较大的情形,用户权限管理是一个复杂并难以维护的问题.在分析RBAC(R o le-B ased A ccess Con tro l)用户权限管理的理论基础上,提出了一种基于角色及对象关联的权限控制策略,有效地解决了应用级权限管理问题,增强了系统权限管理的灵活性和方便性.
