doorconstants.java

本书透彻讲解了经典的《设计模式：可复用面向对象软件的基础》一书涵盖的23种基本设计模式。本书将这些设计模式分成五类：接口型模式、责任型模式、构造型模式、操作型模式

package com.oozinoz.carousel_sol;

/**
 * Define the states for a carousel door.
 */
public interface DoorConstants {
	DoorState CLOSED = new DoorClosed();
	DoorState OPENING = new DoorOpening();
	DoorState OPEN = new DoorOpen();
	DoorState CLOSING = new DoorClosing();
	DoorState STAYOPEN = new DoorStayOpen();
}