Template method pattern in the context of Framework (computer science)

Template method pattern in the context of Framework (computer science)

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👉 Template method pattern in the context of Framework (computer science)

A software framework is software that provides reusable, generic functionality which developers can extend or customize to create complete solutions. It offers an abstraction layer over lower-level code and infrastructure, allowing developers to focus on implementing business logic rather than building common functionality from scratch. Generally, a framework is intended to enhance productivity by allowing developers to focus on satisfying business requirements rather than reimplementing generic functionality. Frameworks often include support programs, compilers, software development kits, code libraries, toolsets, and APIs that integrate various components within a larger software platform or environment.

Unlike a library, where user code controls the program's control flow, a framework implements inversion of control by dictating the overall structure and calling user code at predefined extension points (e.g., through template methods or hooks). Frameworks also provide default behaviours that work out-of-the-box, structured mechanisms for extensibility, and a fixed core that accepts extensions (e.g., plugins or subclasses) without direct modification.

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Template method pattern in the context of Hooking

In computer programming, hooking is a range of techniques used to alter or augment the behaviour of an operating system, of applications, or of other software components by intercepting function calls or messages or events passed between software components. Code that handles such intercepted function calls, events or messages is called a hook.

Hook methods are of particular importance in the template method pattern where common code in an abstract class can be augmented by custom code in a subclass. In this case each hook method is defined in the abstract class with an empty implementation which then allows a different implementation to be supplied in each concrete subclass.

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