An Approach to Dynamically Operating Data Pragmatics for Internetware

Abstract

网构软件不确定的数据需求导致了其数据语用(data pragmatics,简称DP)的不确定性,进而要求数据语用的支撑机制具备动态适应能力,即应用的对象属性与数据表之间的对应关系可以按需动态地创建、更新、删除.针对当前持久化技术缺乏数据语用的动态适应性问题,提出了一种基于对象/关系映射的数据语用动态支撑方法POD(persistence on demand),并且在主流ORM(object/relational mapping)框架的基础上实现了一个遵循POD的持久化框架的原型系统.;The uncertain data requirements of Internetware lead to the DP (data pragmatics) uncertainty. And then it is required that the DP operating mechanism has the ability to adapt to the uncertain DP, i.e. the corresponding relationships between application objects and database tables can be dynamically created, updated and removed on demand. As current persistence technologies lack of dynamic adaptation of DP, this paper proposes an approach to dynamically operating DP for Internetware, POD (persistence on demand), based on ORM (object/relational mapping). Together with the mainstream ORM framework, a prototype of persistence framework following POD is implemented.