Design Pattern _ Bridge pattern

Design Pattern _ Bridge pattern

Bridge Pattern

Decouple an independent action from its implementation so that the two can vary independently)

 

 

ExampleTianxianxi, all of which are Lili; the world is bustling, all to benefit from reality and structure separated clothing company = clothing + Company = clothing company before decoupling is a clothing company, write a Corp abstract class, then, after decoupling, it becomes clothing + Company. clothing is abstracted into products, while the company is abstracted as a company. The creator can change independently and achieve decoupling at the abstract level.
Product Abstraction

public abstract class Product { public abstract void beProducted(); public abstract void beSelled();} 

 

Company Abstraction

 

public abstract class Corp { private Product product;  public Corp(Product _product){  this.product=_product; }  public void makeMoney(){  this.product.beProducted();  this.product.beSelled(); }}

 

 

The house is also a product, isn't it?

Public class House extends Product {@ Override public void beProducted () {System. out. println (The House produced is like this ...);} @ Override public void beSelled () {System. out. println (The House produced has been sold ....);}}

 

IPod, tall!

Public class IPod extends Product {@ Override public void beProducted () {System. out. println (the ipod produced is like this);} @ Override public void beSelled () {System. out. println (the IPod has been sold );}}

 

Real estate companies only deal with houses

Public class HouseCorp extends Corp {public HouseCorp (House _ house) {super (_ house);} @ Override public void makeMoney () {super. makeMoney (); System. out. println (the real estate company has made a lot of money );}}

 

All products of shanzhai company are sold

Public class ShanZhaiCorp extends Corp {public ShanZhaiCorp (Product _ product) {super (_ product) ;}@ Override public void makeMoney () {super. makeMoney (); System. out. println (I am a shanzhai, I make money );}}

 

Scenario Test

Public static void main (String [] args) {System. out. println (real estate companies run like this); House house = new House (); HouseCorp houseCorp = new HouseCorp (house); houseCorp. makeMoney (); System. out. println (); System. out. println (this is the way ShanZhaiCorp runs); shanZhaiCorp ShanZhaiCorp = new shanZhaiCorp (new IPod (); ShanZhaiCorp. makeMoney ();}

Look at the shanzhai company, what is produced when something is popular, the price is low, the quality is also a little guaranteed.

AdvantagesAbstraction and implementation separation and expansion capabilities NotesMainly consider how to split abstraction and implementation