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  2. Visitor pattern - Wikipedia

    en.wikipedia.org/wiki/Visitor_pattern

    The Visitor Family of Design Patterns at the Wayback Machine (archived October 22, 2015). Additional archives: April 12, 2004, March 5, 2002. A rough chapter from The Principles, Patterns, and Practices of Agile Software Development, Robert C. Martin, Prentice Hall; Visitor pattern in UML and in LePUS3 (a Design Description Language)

  3. Single-serving visitor pattern - Wikipedia

    en.wikipedia.org/wiki/Single-serving_visitor_pattern

    The single-serving visitor pattern should be used when visitors do not need to remain in memory. This is often the case when visiting a hierarchy of objects (such as when the visitor pattern is used together with the composite pattern) to perform a single task on it, for example counting the number of cameras in a 3D scene.

  4. Double dispatch - Wikipedia

    en.wikipedia.org/wiki/Double_dispatch

    With this in mind, one ought never to presume the use of agents in the double-dispatch and their application in visitor patterns. If one can clearly see a design limit as to the domain of class types that will be involved in the co-variant interactions, then a direct call is the more efficient solution in terms of computational expense.

  5. Software design pattern - Wikipedia

    en.wikipedia.org/wiki/Software_design_pattern

    In software engineering, a software design pattern or design pattern is a general, reusable solution to a commonly occurring problem in many contexts in software design. [1] A design pattern is not a rigid structure that can be transplanted directly into source code. Rather, it is a description or a template for solving a particular type of ...

  6. Iterator pattern - Wikipedia

    en.wikipedia.org/wiki/Iterator_pattern

    In object-oriented programming, the iterator pattern is a design pattern in which an iterator is used to traverse a container and access the container's elements. The iterator pattern decouples algorithms from containers; in some cases, algorithms are necessarily container-specific and thus cannot be decoupled.

  7. Design Patterns - Wikipedia

    en.wikipedia.org/wiki/Design_Patterns

    Design Patterns: Elements of Reusable Object-Oriented Software (1994) is a software engineering book describing software design patterns. The book was written by Erich Gamma , Richard Helm , Ralph Johnson , and John Vlissides , with a foreword by Grady Booch .

  8. Former NFL QB Trent Dilfer to return for a third season as ...

    www.aol.com/sports/former-nfl-qb-trent-dilfer...

    Trent Dilfer is getting a third season at UAB. Athletic director Mark Ingram said Tuesday that the former NFL QB would be retained for another season.

  9. Pattern-Oriented Software Architecture - Wikipedia

    en.wikipedia.org/wiki/Pattern-Oriented_Software...

    David E. DeLano of C++ Report praised the first volume, writing, "Overall this text is good and I recommend it as an addition to any collection of books on patterns." He said "some of the language and grammar usage feels awkward to the reader" and some of the book has "stiffness and flow problems". [1]