嵌套和专门化关联

Proceedings of the Workshop on Relationships and Associations in Object-Oriented Languages Pub Date : 2009-07-06 DOI:10.1145/1562100.1562105

Tormod V. Håvaldsrud, B. Møller-Pedersen

{"title":"嵌套和专门化关联","authors":"Tormod V. Håvaldsrud, B. Møller-Pedersen","doi":"10.1145/1562100.1562105","DOIUrl":null,"url":null,"abstract":"UML supports specialization of associations, but with sparse semantics. It is recognized that specialization is different from subsetting of association end sets, and UML indicates that it has a meaning similar to specialization for classes (or classifiers in general). Recent efforts on the introduction of associations into programming languages have claimed, with convincing examples, that specialization of associations can not be defined similar to specialization for classes. In this paper we demonstrate that these examples really call for the notion of nested associations; in addition it is demonstrated that other examples call for real specialization (as for classes) of associations. The two notions: nested associations and specialization of associations have been implemented in a prototype tool for an experimental modeling language, and together they open for rich modeling of associations similar to what we have for classes.","PeriodicalId":423992,"journal":{"name":"Proceedings of the Workshop on Relationships and Associations in Object-Oriented Languages","volume":"30 4","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Nested and specialized associations\",\"authors\":\"Tormod V. Håvaldsrud, B. Møller-Pedersen\",\"doi\":\"10.1145/1562100.1562105\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"UML supports specialization of associations, but with sparse semantics. It is recognized that specialization is different from subsetting of association end sets, and UML indicates that it has a meaning similar to specialization for classes (or classifiers in general). Recent efforts on the introduction of associations into programming languages have claimed, with convincing examples, that specialization of associations can not be defined similar to specialization for classes. In this paper we demonstrate that these examples really call for the notion of nested associations; in addition it is demonstrated that other examples call for real specialization (as for classes) of associations. The two notions: nested associations and specialization of associations have been implemented in a prototype tool for an experimental modeling language, and together they open for rich modeling of associations similar to what we have for classes.\",\"PeriodicalId\":423992,\"journal\":{\"name\":\"Proceedings of the Workshop on Relationships and Associations in Object-Oriented Languages\",\"volume\":\"30 4\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-07-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the Workshop on Relationships and Associations in Object-Oriented Languages\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/1562100.1562105\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Workshop on Relationships and Associations in Object-Oriented Languages","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/1562100.1562105","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 3

摘要

UML支持关联的专门化，但是使用稀疏的语义。人们认识到专门化不同于关联端集的子集，UML指出它具有类似于类(或一般的分类器)专门化的含义。最近在将关联引入编程语言方面所做的努力声称，通过令人信服的例子，关联的专门化不能像类的专门化那样定义。在本文中，我们证明了这些例子确实需要嵌套关联的概念;此外，还证明了其他示例需要关联的真正专门化(如类)。这两个概念:嵌套关联和关联的专门化已经在实验性建模语言的原型工具中实现，它们一起为丰富的关联建模打开了大门，类似于我们为类所做的建模。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Nested and specialized associations

UML supports specialization of associations, but with sparse semantics. It is recognized that specialization is different from subsetting of association end sets, and UML indicates that it has a meaning similar to specialization for classes (or classifiers in general). Recent efforts on the introduction of associations into programming languages have claimed, with convincing examples, that specialization of associations can not be defined similar to specialization for classes. In this paper we demonstrate that these examples really call for the notion of nested associations; in addition it is demonstrated that other examples call for real specialization (as for classes) of associations. The two notions: nested associations and specialization of associations have been implemented in a prototype tool for an experimental modeling language, and together they open for rich modeling of associations similar to what we have for classes.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Proceedings of the Workshop on Relationships and Associations in Object-Oriented Languages

自引率

0.00%

发文量