factory.java

来自「JSP新闻发布系统 JSP新闻发布系统」· Java 代码 · 共 79 行

package net.ijsp.news.news;

/**
 * <p>Title:用户相关信息 </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: ijsp.net</p>
 * @author ccjsmile
 * @version 1.0
 */

import net.ijsp.news.search.SearchManager;
import net.ijsp.news.search.Query;

public abstract class Factory {

        private static Factory factory = null;
        private final static String className = "net.ijsp.news.news.mysql.MysqlFactory";

        /**
        * 获得Factory的实例
        */
        public static Factory getInstance() {
                if(factory==null) {
                        try {
                                Class c = Class.forName(className);
                                factory = (Factory)c.newInstance();
                        } catch (Exception ex) {
                    ex.printStackTrace();

            }
                }
                return factory;
        }

        /**
        * 获取 User 实例
        */
        public abstract User getUser() ;


        /**
        * 获取 UserFactory 实例
        */
        public abstract UserFactory getUserFactory() ;


        /**
        * 获取 Board 实例
        */
        public abstract Board getBoard() ;


        /**
        * 获取 BoardFactory 实例
        */
        public abstract BoardFactory getBoardFactory() ;

        /**
        * 获取 News 实例
        */
        public abstract News getNews();

        /**
        * 获取 NewsFactory 实例
        */
        public abstract NewsFactory getNewsFactory();

        /**
        * 设置检索
        */
        public abstract SearchManager getSearchManager();

        /**
        * 检索
        */
        public abstract Query getQuery();
}