设计模式——Build模式

//接口

public interface Build {
     public void buildTop(String name);
     public void buildLeft(String name);
     public void buildMain(String name);
     public void buildBootom(String name);
     public PageBuild getPageBuild();
}

//工具类

public class PageBuild {
     //缺少成员属性的思维
     private String top;
     private String left;
     private String main;
     private String bottom;
    
     public void buildTop(String location) {
         this.top = location;
         System.out.println(location);
     }
     public void buildLeft(String location) {
         this.left = location;
         System.out.println(location);
     }
     public void buildMain(String location) {
         this.main = location;
         System.out.println(location);
     }
     public void buildBottom(String location) {
         this.bottom = location;
         System.out.println(location);
     }
}

//接口+工具类对象

public class H5Builder implements Build{
     private PageBuild pageBuilder;
     public H5Builder() {
         pageBuilder = new PageBuild();
     }
     public H5Builder(PageBuild pageBuilder) {
         // TODO Auto-generated constructor stub
         this.pageBuilder = pageBuilder;
     }
     @Override
     public void buildTop(String name) {
         // TODO Auto-generated method stub
         //System.out.println("h5 构建 顶部");
         pageBuilder.buildTop(name);
     }

    @Override
     public void buildLeft(String name) {
         // TODO Auto-generated method stub
         //System.out.println("h5 构建 左部");
         pageBuilder.buildLeft(name);
     }

    @Override
     public void buildMain(String name) {
         // TODO Auto-generated method stub
         //System.out.println("h5 构建 主部分");
         pageBuilder.buildMain(name);
     }

    @Override
     public void buildBootom(String name) {
         // TODO Auto-generated method stub
         //System.out.println("h5 构建 底部");
         pageBuilder.buildBottom(name);
     }
     @Override
     public PageBuild getPageBuild() {
         // TODO Auto-generated method stub
         return pageBuilder;
     }

}

//

//代码重复 sout
public class VueBuilder implements Build{
     private PageBuild pageBuilder;
     public VueBuilder() {
         // TODO Auto-generated constructor stub
         this.pageBuilder = new PageBuild();
     }
     public VueBuilder(PageBuild pageBuilder) {
         // TODO Auto-generated constructor stub
         this.pageBuilder = pageBuilder;
     }
    
     @Override
     public void buildTop(String name) {
         // TODO Auto-generated method stub
         //System.out.println("Vue buld Top");
         pageBuilder.buildTop(name);
        
     }

    @Override
     public void buildLeft(String name) {
         // TODO Auto-generated method stub
         //System.out.println("Vue buld Left");
         pageBuilder.buildLeft(name);
     }

    @Override
     public void buildMain(String name) {
         // TODO Auto-generated method stub
//        System.out.println("Vue buld Main");
         pageBuilder.buildMain(name);
     }

    @Override
     public void buildBootom(String name) {
         // TODO Auto-generated method stub
//        System.out.println("Vue buld Right");
         pageBuilder.buildBottom(name);
     }

    @Override
     public PageBuild getPageBuild() {
         // TODO Auto-generated method stub
         return pageBuilder;
     }

}

//

public class FactoryBuilder {
     private Build build;

    //默认无参构造 html5
     public FactoryBuilder() { this.build = new H5Builder(); }
    
     //当有多个实现类的时候传参
     public FactoryBuilder(Build build) {
         // TODO Auto-generated constructor stub
         this.build = build;
     }
    
     public void build() {
         build.buildTop("nav");
         build.buildLeft("index");
         build.buildMain("body");
         build.buildBootom("footer");
     }
}

//测试

public class Dcemo {
     public static void main(String[] args) {
         //当应用中返回或者生成PageBuilder,调用有参---服务于需求！！
         H5Builder hBuilder = new H5Builder();
         FactoryBuilder fBuilder = new FactoryBuilder(hBuilder);
         fBuilder.build();
     }
}