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some not super obvious terminologies in software engineering

admin 11月 13, 2020 0

Also with some significant knowledge bound to those terms

Client: The caller, executor or user of other operations/functions
Abstract operations: the operations that an abstract class declares but doesn’t implement.
Mixin class: a class that’s intended to provide an optional interface or functionality to other classes. Mixin classes require multiple inheritance. (Interface in Java)
Reuse Mechanisms:
- class inheritance
  - internals of parent classes are often visible to subclasses
  - white-box reuse
- object composition
  - new functionality is obtained by assembling or composing objects to get more complex functionality
  - knows the interface (not implementation) of the composing objects
  - black-box reuse
Delegation:
- Wwo objects are involved in handling a request: a receiving object delegates operations to its delegates.
- Is a good design choice only when it simplifies more than it complicates. (Dynamic, highly parameterized software introduces run-time inefficiencies and more importantly human inefficiencies, e.g. harder to understand)
Parameterized types
- e.g generics in Java, templates in C++