Inheritance and composition are two different techniques that allow a modeller to extend the properties of a class. In this paper we highlight the differences of these two closely-related concepts when used in aspect-oriented designs. In particular, we explain that when an aspect wants to extend a base class of a source model, the designer should choose to use composition if she intends the extension to replace the base class. If she intends to define an alternative to the base class with extended functionality, inheritance should be used. We demonstrate the power of the combined use of both techniques by showing an aspect-oriented design of parts of a workflow middleware product line.
{"title":"Designing with inheritance and composition","authors":"Omar Alam, J. Kienzle","doi":"10.1145/2161996.2162002","DOIUrl":"https://doi.org/10.1145/2161996.2162002","url":null,"abstract":"Inheritance and composition are two different techniques that allow a modeller to extend the properties of a class. In this paper we highlight the differences of these two closely-related concepts when used in aspect-oriented designs. In particular, we explain that when an aspect wants to extend a base class of a source model, the designer should choose to use composition if she intends the extension to replace the base class. If she intends to define an alternative to the base class with extended functionality, inheritance should be used. We demonstrate the power of the combined use of both techniques by showing an aspect-oriented design of parts of a workflow middleware product line.","PeriodicalId":198579,"journal":{"name":"VariComp '12","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128029280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：