CAD/CAM数据库中的复杂和复合对象

[1989] Proceedings. Fifth International Conference on Data Engineering Pub Date : 1989-02-06 DOI:10.1109/ICDE.1989.47248

W. Wilkes, P. Klahold, G. Schlageter

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引用次数: 22

摘要

结果表明，接口的概念和复合对象的概念是基于相同的机制，即实例继承关系。这种关系被集成到一个面向对象的数据模型中，该模型以一种简单的方式表示接口和复合对象。接口的概念被概括为一种抽象机制。这允许消除刚性接口概念的一些严重缺陷，并且需要通用组件关系。

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Complex and composite objects in CAD/CAM databases

It is shown that the concept of interfaces and the concept of composite objects are based on the same mechanism, an instance inheritance relationship. This relationship is integrated into an object-oriented data model which represents interfaces and composite objects in an easy way. The concept of interfaces is generalized to an abstraction mechanism. This allows some severe drawbacks of a rigid interface concept to be eliminated and generic component relationships to be needed.<>

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[1989] Proceedings. Fifth International Conference on Data Engineering

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