Bridge mode of design mode (note)

Bridging mode : Separates the abstract part from its implementation, allowing them to change independently. An abstract class and its derived classes are used to implement their own objects.

First, define an abstract implementation class Implementor

publicabstractclass Implementor {    publicabstractvoidoperation();}

Then define the specific 2 implementation class inheritance Implementor class

 Public  class concreteimplementa extends implementor{    @Override     Public void Operation() {System.out.println ("Concrete implementation of method a"); }} Public  class concreteimplementb extends implementor{    @Override     Public void Operation() {System.out.println ("Concrete implementation of the method of B"); }}

Then define the abstraction abstract class

publicabstract  class Abstraction {    protected Implementor implementor;    publicvoidsetImplementor(Implementor implementor){        this.implementor=implementor;    }    publicabstractvoidoperation();}

Then define the Refinedabstaction class inheritance abstraction

publicclass RefinedAbstaction extends Abstraction{    @Override    publicvoidoperation() {        implementor.operation();            }}

Client code

     publicstaticvoidmain(String[] args) {        //桥接模式        Abstraction abstraction=new RefinedAbstaction();        abstraction.setImplementor(new ConcreteImplementA());        abstraction.operation();        abstraction.setImplementor(new ConcreteImplementB());        abstraction.operation();    }

Bridge mode of design mode (note)