Attribute-oriented programming (@OP) is a technique for embedding metadata, namely attributes, within program code.

Attribute-oriented programming in various languages


With the inclusion of Metadata Facility for Java (JSR-175)[1] into the J2SE 5.0 release it is possible to utilize attribute-oriented programming right out of the box. XDoclet library makes it possible to use attribute-oriented programming approach in earlier versions of Java.


The C# language has supported attributes from its very first release. These attributes was used to give run-time information and are not used by a preprocessor. Currently with source generators, you can use attributes to drive generation of additional code at compile-time.


The Unified Modeling Language (UML) supports a kind of attribute called stereotypes.


The Hack programming language supports attributes. Attributes can be attached to various program entities, and information about those attributes can be retrieved at run-time via reflection.



This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help to improve this article by introducing more precise citations. (August 2009) (Learn how and when to remove this template message)
  • "Attribute-Oriented Programming". An Introduction to Attribute-Oriented Programming. Archived from the original on May 26, 2005. Retrieved July 22, 2005.
  • Wada, Hiroshi; Suzuki, Junichi (2005). "Modeling Turnpike Frontend System: a Model-Driven Development Framework Leveraging UML Metamodeling and Attribute-Oriented Programming" (PDF). In Proc. of the 8th ACM/IEEE International Conference on Model Driven Engineering Languages and Systems (MoDELS/UML 2005). Archived (PDF) from the original on 2016-03-03. Retrieved 2006-03-21.
  • Rouvoy, Romain; Merle, Philippe (2006). "Leveraging Component-Oriented Programming with Attribute-Oriented Programming" (PDF). In Proc. of the 11th ECOOP International Workshop on Component-Oriented Programming (WCOP 2006). Archived from the original (PDF) on 2006-12-23.