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An aspect weaver is a metaprogramming utility for aspect-oriented languages designed to take instructions specified by aspects (isolated representations of significant concepts in a program) and generate the final implementation code. The weaver integrates aspects into the locations specified by the software as a pre-compilation step. By merging aspects and classes (representations of the structure of entities in the program), the weaver generates a woven class. Aspect weavers take instructions known as advice specified through the use of pointcuts and join points, special segments of code that indicate what methods should be handled by aspect code. The implementation of the aspect then specifies whether the related code should be added before, after, or throughout the related methods. By doing this, aspect weavers improve modularity, keeping code in one place that would otherwise have been interspersed throughout various, unrelated classes. (en) Le tissage est l'étape de la programmation orientée aspect qui a pour but d'insérer des bouts de codes appelés greffons (Advice) dans le code métier d'une application. Tisser un greffon dans une méthode revient à redéfinir la méthode comme la composition de son corps avec le greffon. Le tissage d'aspects au niveau de l'application est un mécanisme offrant l'extensibilité et l'adaptabilité, permettant ainsi à l'application de s'adapter facilement quand des nouveaux besoins font surface. Tisser un aspect peut se faire à plusieurs moments : à la compilation, au chargement et à l'exécution. Il existe de nombreux tisseurs dans différents langages mais c'est en Java que l'on trouve les tisseurs les plus matures (utilisabilité, stabilité, performances, intégration aux outils...). (fr) |
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Two classes and a single aspect are presented. The aspect weaver analyzes each class and combines the aspect into the implementation code. The result is two implementation classes with the aspect code present in appropriate, but distinct, places in each class. (en) |
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An aspect weaver takes information from raw classes and aspects and creates new classes with the aspect code appropriately weaved into the classes. (en) |
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An aspect weaver is a metaprogramming utility for aspect-oriented languages designed to take instructions specified by aspects (isolated representations of significant concepts in a program) and generate the final implementation code. The weaver integrates aspects into the locations specified by the software as a pre-compilation step. By merging aspects and classes (representations of the structure of entities in the program), the weaver generates a woven class. (en) Le tissage est l'étape de la programmation orientée aspect qui a pour but d'insérer des bouts de codes appelés greffons (Advice) dans le code métier d'une application. Tisser un greffon dans une méthode revient à redéfinir la méthode comme la composition de son corps avec le greffon. Le tissage d'aspects au niveau de l'application est un mécanisme offrant l'extensibilité et l'adaptabilité, permettant ainsi à l'application de s'adapter facilement quand des nouveaux besoins font surface. (fr) |
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Aspect weaver (en) Tissage dans la programmation orientée aspect (fr) |
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