Pattern Adapter Vs Bridge

Adapter vs facade vs bridge md the three design patterns adapter facade and bridge all produce the result of a clean public api.

Pattern adapter vs bridge. Video series on design patterns for object oriented languages. Gof p219 your last question gets a yes an adapter is used to make two otherwise disagreeable elements of a system play nicely together without changing their. The bridge pattern is often confused with the adapter pattern and is often implemented using the object adapter pattern e g. Let s say you have.

It is often used to make existing classes work with others without modifying their source code. The main difference between an adaptor and a bridge pattern is that a bridge pattern serves to decouple an abstraction class from its implementation and an adaptor pattern converts the interface between classes with less inheritance. I think you re watering the bridge down to a strategy pattern. The bridge pattern can also be thought of as two layers of abstraction.

Strategy and template provide abstraction of an implementation. In the java code below. When there is only one fixed implementation this pattern is known as the pimpl idiom in the c world. The bridge pattern is something you implement up front if you know you have two orthogonal hierarchies it provides a way to decouple the interface and the implementation in such a way that you don t get an insane number of classes.

An example is an adapter that converts the interface of a. This time we look at the bridge pattern. Memorymappedfile and directreadfile types of file objects. Let s say you want to be able to read files from various sources maybe linux vs.

This has been previously discussed here difference between bridge pattern and adapter pattern the real quote you want from gof is adapter makes things work after they re designed. This is especially useful to control cominatorial explosion. Bridge makes them work before they are. The adaptor and bridge patterns are very similar.

The difference between the patterns are usually due to a subtle context shift and in some cases a behavioural requirement. Osama al atraqchi 1 151 views.