学习建造模式笔记

package com.donnie;

import java.awt.Panel;
/*建造模式：首先假设一个复杂对像由多个模块组成，并且改变的机会大
 * Builder模式是把复杂对象的创建 和模块的创建分别开来
 * */
//假如系统有多个模块组成
class Builder1 implements IBuilder { //builder负表各个模块的生成
 public Panel getmodel1(){
  Panel m1=null;
  return m1;
 }
 public Panel getmodel2(){
  Panel m2=null;
  return m2;
 }
 public Panel getmodel3(){
  Panel m3=null;
  return m3;
 }
}
interface IBuilder{  //面象接口编程，降低藕合性
 public abstract Panel getmodel1();
 public Panel getmodel2();
 public Panel getmodel3();
 
}
class Director{
 private IBuilder builder1;  //用spring可以做注入
 public Director(IBuilder builder1){
  this.builder1=builder1;
 }
 public void contruct(){
  Panel p1=builder1.getmodel1();
  Panel p2=builder1.getmodel2();
  Panel p3=builder1.getmodel3();
  //模块组合
 }
}

public class Builder {

}