Restructuring object-oriented database model to ease checking the integrity constraints

B. Zaqaibeh, Hamidah Ibrahim, A. Mamat, Md Nasir Sulaiman
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引用次数: 2

Abstract

In this paper, a new structural model is proposed to ease the checking of the integrity constraints in an object-oriented database system. The structure accepts declarative global specification of constraints including user-defined constraint, and an efficient representation that permits localized constraints checking. A new method called "detection" is added to the structure to check the status of violation of the relations in an object-oriented database. The new approach is demonstrated using ALICE rule. The notion of the constraints is used to define the connectivity between objects required for the valid expression of constraint and rule conditions. The event in an event-condition-action (ECA) rule that defines the active behavior of an application specifies an operation to be monitored, such as modifying a data value. The semantic analysis process applies a concept known as object-centered conditions during the compilation of ALICE rules to detect semantically incorrect rules at compile time.
重构面向对象的数据库模型,简化完整性约束的检查
本文提出了一种新的结构模型,以简化面向对象数据库系统中完整性约束的检查。该结构接受约束的声明性全局规范,包括用户定义的约束,以及允许本地化约束检查的有效表示。在结构中增加了一种名为“检测”的新方法,用于检查面向对象数据库中关系的违反状态。利用ALICE规则对新方法进行了验证。约束的概念用于定义约束和规则条件的有效表达所需的对象之间的连通性。事件条件操作(ECA)规则定义了应用程序的活动行为,其中的事件指定了要监视的操作,例如修改数据值。语义分析过程在ALICE规则的编译过程中应用一个称为以对象为中心的条件的概念,以便在编译时检测语义不正确的规则。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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