复杂对象创建终结者(Builder Pattern)

捣鼓了很长时间，终于对建造者模式有初步理解，现在写篇记录下。缘起就是创建的对象比较复杂，需按功能分散。类似造一辆汽车，作为汽车厂家，你需要造车身，造轮胎等，精髓在于领导者(Director)，领导者指挥各个部门运行，然后向客户提交整车。

构建模式

将一个复杂对象的搭建与他的表示分离，使得同样的构建过程可以创建不同的表示.

UML:

Director:

   1:  public class PersonDirector {

   2:      public Person constructPerson(PersonBuilder pb){

   3:          pb.buildeHead();

   4:          pb.buildeBody();

   5:          pb.buildeFoot();

   6:          return pb.buildePerson();

   7:      }

   8:  }

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代码：

 

   1:  public static void main(String[] args) {

   2:              PersonDirector pd=new PersonDirector();

   3:              Person person=pd.constructPerson(new ManBuilder());

   4:              System.out.println(person.getHead()+","+person.getBody()+","+person.getFoot());

   5:              Person womanPerson=pd.constructPerson(new WomanBuilder());

   6:              System.out.println(womanPerson.getHead()+womanPerson.getBody()+womanPerson.getFoot());

   7:  //            男人头,男人身体,男人的脚啊

   8:  //            女人的头女人的身体女人的脚

   9:          }

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