标签：des style blog ar io color os sp for
组合模式可以理解为是树的结构的一种构建方式。
Composite是可以拓展的树的分支，树理论上可以无限长。
package com.jayfulmath.designpattern.composite; public abstract class Company { protected String name; public Company(String name) { this.name = name; } public abstract void Add(Company c); public abstract void Remove(Company c); public abstract void Display(int depth); public abstract void LineofDuty(); protected void printfObjectName(int depth) { StringBuilder builder = new StringBuilder(); for(int i=0;i<depth;i++) { builder.append("-"); } System.out.println(builder.toString()+name); } }
package com.jayfulmath.designpattern.composite; public class FianceDepartment extends Company { public FianceDepartment(String name) { super(name); // TODO Auto-generated constructor stub } @Override public void Add(Company c) { // TODO Auto-generated method stub } @Override public void Remove(Company c) { // TODO Auto-generated method stub } @Override public void Display(int depth) { // TODO Auto-generated method stub printfObjectName(depth); } @Override public void LineofDuty() { // TODO Auto-generated method stub System.out.println(name+"\t staff payoff"); } }
package com.jayfulmath.designpattern.composite; public class HRDepartment extends Company { public HRDepartment(String name) { super(name); // TODO Auto-generated constructor stub } @Override public void Add(Company c) { // TODO Auto-generated method stub } @Override public void Remove(Company c) { // TODO Auto-generated method stub } @Override public void Display(int depth) { // TODO Auto-generated method stub printfObjectName(depth); } @Override public void LineofDuty() { // TODO Auto-generated method stub System.out.println(name+"\t staff recruitment "); } }
package com.jayfulmath.designpattern.composite; import com.jayfulmath.designpattern.main.BasicExample; public class CompositeMain extends BasicExample { @Override public void startDemo() { // TODO Auto-generated method stub CompositeCompany root = new CompositeCompany("北京总公司"); root.Add(new HRDepartment("总公司HR")); root.Add(new FianceDepartment("总公司FD")); CompositeCompany comp = new CompositeCompany("上海分公司"); comp.Add(new HRDepartment("上海分公司HR")); comp.Add(new FianceDepartment("上海分公司FD")); root.Add(comp); CompositeCompany comp1 = new CompositeCompany("浦东办事处"); comp1.Add(new HRDepartment("浦东办事处HR")); comp1.Add(new FianceDepartment("浦东办事处FD")); comp.Add(comp1); CompositeCompany comp2 = new CompositeCompany("人民广场办事处"); comp2.Add(new HRDepartment("人民广场办事处HR")); comp2.Add(new FianceDepartment("人民广场办事处FD")); comp.Add(comp2); System.out.println("结构图："); root.Display(1); System.out.println("职责："); root.LineofDuty(); } }
package com.jayfulmath.designpattern.composite; import com.jayfulmath.designpattern.main.BasicExample; public class CompositeMain extends BasicExample { @Override public void startDemo() { // TODO Auto-generated method stub CompositeCompany root = new CompositeCompany("北京总公司"); root.Add(new HRDepartment("总公司HR")); root.Add(new FianceDepartment("总公司FD")); CompositeCompany comp = new CompositeCompany("上海分公司"); comp.Add(new HRDepartment("上海分公司HR")); comp.Add(new FianceDepartment("上海分公司FD")); root.Add(comp); CompositeCompany comp1 = new CompositeCompany("浦东办事处"); comp1.Add(new HRDepartment("浦东办事处HR")); comp1.Add(new FianceDepartment("浦东办事处FD")); comp.Add(comp1); CompositeCompany comp2 = new CompositeCompany("人民广场办事处"); comp2.Add(new HRDepartment("人民广场办事处HR")); comp2.Add(new FianceDepartment("人民广场办事处FD")); comp.Add(comp2); System.out.println("结构图："); root.Display(1); System.out.println("职责："); root.LineofDuty(); } }
运行结果：
结构图： -北京总公司 ---总公司HR ---总公司FD ---上海分公司 -----上海分公司HR -----上海分公司FD -----浦东办事处 -------浦东办事处HR -------浦东办事处FD -----人民广场办事处 -------人民广场办事处HR -------人民广场办事处FD 职责： 总公司HR staff recruitment 总公司FD staff payoff 上海分公司HR staff recruitment 上海分公司FD staff payoff 浦东办事处HR staff recruitment 浦东办事处FD staff payoff 人民广场办事处HR staff recruitment 人民广场办事处FD staff payoff
Leaf 是没有add和remove功能的，但是保留这两个接口可以是代码保持统一性.
标签：des style blog ar io color os sp for
原文地址：http://www.cnblogs.com/deman/p/4169376.html
