[设计模式]访问者模式

package com.jerry.designpattern;
/**
 * 
 * @author Jerry
 * @date 2015年2月10日 下午11:21:05
 */
public abstract class Customer {
    protected String id;
    protected String name;
    
    public abstract void accept(Visitor visitor);

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

package com.jerry.designpattern;
/**
 * 
 * @author Jerry
 * @date 2015年2月10日 下午11:22:48
 */
public class EnterpriseCustomer extends Customer{

    private String linkName;
    private String linkPhone;
    private String registerAddress;
    
    @Override
    public void accept(Visitor visitor) {
        // TODO Auto-generated method stub
        visitor.visitEnterpriseCustomer(this);
    }

    public String getLinkName() {
        return linkName;
    }

    public void setLinkName(String linkName) {
        this.linkName = linkName;
    }

    public String getLinkPhone() {
        return linkPhone;
    }

    public void setLinkPhone(String linkPhone) {
        this.linkPhone = linkPhone;
    }

    public String getRegisterAddress() {
        return registerAddress;
    }

    public void setRegisterAddress(String registerAddress) {
        this.registerAddress = registerAddress;
    }
}

package com.jerry.designpattern;
/**
 * 
 * @author Jerry
 * @date 2015年2月10日 下午11:26:37
 */
public class PersonalCustomer extends Customer{
    
    private String phone;
    private int age;
    
    @Override
    public void accept(Visitor visitor) {
        // TODO Auto-generated method stub
        visitor.visitPersonalCustomer(this);
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}

package com.jerry.designpattern;
/**
 * 
 * @author Jerry
 * @date 2015年2月10日 下午11:23:40
 */
public interface Visitor {
    void visitPersonalCustomer(PersonalCustomer personalCustomer);
    
    void visitEnterpriseCustomer(EnterpriseCustomer enterpriseCustomer);
}

package com.jerry.designpattern;
/**
 * 
 * @author Jerry
 * @date 2015年2月10日 下午11:34:14
 */
public class PredilectionAnalyzeVisitor implements Visitor{
    
    @Override
    public void visitEnterpriseCustomer(EnterpriseCustomer enterpriseCustomer) {
        // TODO Auto-generated method stub
        System.out.println("现在对企业客户<" + enterpriseCustomer.getName() + ">进行产品偏好分析");
    }
    
    public void visitPersonalCustomer(PersonalCustomer personalCustomer) {
        System.out.println("现在对个人客户<" + personalCustomer.getName() + ">进行产品偏好分析");
    };

}

package com.jerry.designpattern;
/**
 * 
 * @author Jerry
 * @date 2015年2月10日 下午11:29:54
 */
public class ServiceRequestVisitor implements Visitor{

    @Override
    public void visitPersonalCustomer(PersonalCustomer personalCustomer) {
        // TODO Auto-generated method stub
        System.out.println(personalCustomer.getName() + "提出服务请求");
    }

    @Override
    public void visitEnterpriseCustomer(EnterpriseCustomer enterpriseCustomer) {
        // TODO Auto-generated method stub
        System.out.println(enterpriseCustomer.getName() + "企业提出服务请求");
    }

}

package com.jerry.designpattern;
/**
 * 
 * @author Jerry
 * @date 2015年2月10日 下午11:38:24
 */
public class Client {
    public static void main(String[] args) {
        ObjectStructure objectStructure = new ObjectStructure();
        
        Customer c1 = new PersonalCustomer();
        c1.setName("孙悟空");
        objectStructure.addElement(c1);
        
        Customer c2 = new EnterpriseCustomer();
        c2.setName("花果山科技有限公司");
        objectStructure.addElement(c2);
        
        Customer c3 = new PersonalCustomer();
        c3.setName("猪悟能");
        objectStructure.addElement(c3);
        
        Customer c4 = new EnterpriseCustomer();
        c4.setName("高老庄房地产集团");
        objectStructure.addElement(c4);
        
        Visitor v1 = new ServiceRequestVisitor();
        objectStructure.handle(v1);
        
        Visitor v2 = new PredilectionAnalyzeVisitor();
        objectStructure.handle(v2);
    }
}