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  2. Singleton pattern - Wikipedia

    en.wikipedia.org/wiki/Singleton_pattern

    In Object-oriented programming, the singleton pattern is a software design pattern that restricts the instantiation of a class to a singular instance. One of the well-known "Gang of Four" design patterns, which describes how to solve recurring problems in object-oriented software. [1] The pattern is useful when exactly one object is needed to ...

  3. Software design pattern - Wikipedia

    en.wikipedia.org/wiki/Software_design_pattern

    Software design pattern. In software engineering, a design pattern describes a relatively small, well-defined aspect (i.e. functionality) of a computer program in terms of how to write the code. Using a pattern is intended to leverage an existing concept rather than re-inventing it. This can decrease the time to develop software and increase ...

  4. Mediator pattern - Wikipedia

    en.wikipedia.org/wiki/Mediator_pattern

    Mediator pattern. In software engineering, the mediator pattern defines an object that encapsulates how a set of objects interact. This pattern is considered to be a behavioral pattern due to the way it can alter the program's running behavior. In object-oriented programming, programs often consist of many classes.

  5. Singleton bound - Wikipedia

    en.wikipedia.org/wiki/Singleton_bound

    Singleton bound. In coding theory, the Singleton bound, named after Richard Collom Singleton, is a relatively crude upper bound on the size of an arbitrary block code with block length , size and minimum distance . It is also known as the Joshibound. [1] proved by Joshi (1958) and even earlier by Komamiya (1953).

  6. Factory method pattern - Wikipedia

    en.wikipedia.org/wiki/Factory_method_pattern

    Factory method pattern. In object-oriented programming, the factory method pattern is a design pattern that uses factory methods to deal with the problem of creating objects without having to specify their exact classes. Rather than by calling a constructor, this is accomplished by invoking a factory method to create an object.

  7. Creational pattern - Wikipedia

    en.wikipedia.org/wiki/Creational_pattern

    Creational pattern. In software engineering, creational design patterns are design patterns that deal with object creation mechanisms, trying to create objects in a manner suitable to the situation. The basic form of object creation could result in design problems or in added complexity to the design due to inflexibility in the creation procedures.

  8. Multiton pattern - Wikipedia

    en.wikipedia.org/wiki/Multiton_pattern

    In software engineering, the multiton pattern is a design pattern which generalizes the singleton pattern. Whereas the singleton allows only one instance of a class to be created, the multiton pattern allows for the controlled creation of multiple instances, which it manages through the use of a map. Rather than having a single instance per ...

  9. Delegation pattern - Wikipedia

    en.wikipedia.org/wiki/Delegation_pattern

    Delegation pattern. In software engineering, the delegation pattern is an object-oriented design pattern that allows object composition to achieve the same code reuse as inheritance. In delegation, an object handles a request by delegating to a second object (the delegate). The delegate is a helper object, but with the original context.