package designpattern.visitor;

import java.util.ArrayList;

import java.util.stream.Collectors;

/**

* 客户端

*

* @author liu yuning

*

*/

public class VisitorClient {

public static void main(String[] args) {

ObjectStructure o = new ObjectStructure();

o.attach(new ConcreteElementA());

o.attach(new ConcreteElementB());

ConcreteVisitor1 visitor1 = new ConcreteVisitor1();

ConcreteVisitor2 visitor2 = new ConcreteVisitor2();

//在不改变元素的结构前提下，由访问者去实现对各元素的不同操作，

o.accept(visitor1);

o.accept(visitor2);

TestAc testAc1 = new TestAc();

TestAc testAc2 = new TestAc();

ArrayList<TestAc> objects = new ArrayList<>();

objects.add(testAc1);

objects.add(testAc2);

objects.stream().map(object->{

object.setName("sf");

return object;

}).collect(Collectors.toList());

for (TestAc object : objects) {

System.out.println(object.getName());

}

}

}