difference between bridge pattern and adapter pattern

You could implement other implementations of Bridge if you wanted. The official definition for the Bridge design pattern introduced by Gang of Four (GoF) is to decouple an abstraction from its implementation so that the two can vary independently. In software engineering, the adapter pattern is a software design pattern (also known as wrapper, an alternative naming shared with the decorator pattern) that allows the interface of an existing class to be used as another interface. This type of design pattern comes under structural pattern as this pattern combines the capability of two independent interfaces. There are 2 parts in Bridge design pattern : Abstraction; Implementation; This is a design mechanism that encapsulates an implementation class inside of an … Adapter pattern acts as a bridge between two incompatible interfaces. Intention: The end product may look similar but the intention is different. This pattern involves a single class which is responsible to join functionalities of independent or incompatible interfaces. This pattern involves a single class called adapter which is responsible for communication between two independent or … I think that the pattern that I described just happens to be a different implementation. Example - Object Persistence API Example A chart illustrating fingerprint ridge patterns (arches, loops and whorls) and fingerprint ridge characteristics (core, ending ridge, short ridge, fork or bifurcation, delta, hook, eye, dot or island, crossover, bridge, enclosures, and speciality). Using the bridge pattern would leave the client code unchanged with no need to recompile the 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. The Bridge design pattern allows you to separate the abstraction from the implementation.It is a structural design pattern. Flyweight is a structural design pattern that lets you fit more objects into the available amount of RAM by sharing common parts of state between multiple objects instead of keeping all of the data in each object. In the Bridge pattern, the Container serves as an Adapter to the Interface, allowing Container's public interface to vary independently of the implementation in the subclasses. Bridge is a pattern that makes it easier to maintain code and add features. An adapter is intended to bridge the disconnect between one interface and another. I am not sure that I see much of a difference though. Differences. Adapter pattern works as a bridge between two incompatible interfaces. Object Adapter Vs Class Adapter The adapter pattern we have implemented above is called Object Adapter Pattern because the adapter holds an instance of adaptee. There is also another type called Class Adapter Pattern which use inheritance instead of composition but you require multiple inheritance to implement it. This means to create a bridge interface that uses OOP principles to separate out responsibilities into different abstract classes. Bridge Pattern Example In contrast, the Container's public interface isn't relevant to the Strategy pattern. I think your example is valid. Think of the Bridge as you SlowAndQualityDrawing. 2. The bridge pattern applies when there is a need to avoid permanent binding between an abstraction and an implementation and when the abstraction and implementation need to vary independently. The adaptor and bridge patterns are very similar. A wrapper as used in the Facade pattern is intended to simplify an interface to an external library.

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