Inversion of Control

The term Inversion of Control ( IoC; German: "reverse control " or " control reversal " ) denotes an implementation paradigm, which applies, inter alia, in object-oriented programming.

This paradigm describes the operation of frameworks: a function of an application program is registered with a standard library and called by this at a later date. This is sometimes referred to as an application of the " Hollywood principle " means: " do not call us, we'll call you" ( in German: " Do not call us, we will call you " ): Instead of applying the control flow controls and only uses standard functions that control the execution of specific subroutines to the framework is given.

A simple example of such a reversal are listeners ( according to the Observer pattern ), but also Java applets and servlets follow this design pattern. Plug -ins and callback functions (callback ) are further examples for surrendering the control of individual program parts a ( Framework ) object.

Is also common in libraries that work with Dependency Injection (such as EJB container or the Spring framework ) to read of Inversion of Control. Here it goes but mainly to the generation of object nets.

Software framework Java-Applet Factory method pattern Design Patterns Prototype pattern Singleton pattern Decorator pattern Flyweight pattern Behavioral pattern Interpreter pattern Iterator pattern Memento pattern Template method pattern Strategy pattern Multiton pattern Interceptor pattern Null Object pattern Data Access Object Fluent Interface Model–view–presenter Model View ViewModel
415535
de