beanfactory.java

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package com.web.common.transaction;

import com.web.admin.dao.IAdminDao;
import com.web.admin.dao.impl.AdminDaoImpl;
import com.web.admin.service.IAdminService;
import com.web.admin.service.impl.AdminServiceImpl;
import com.web.user.dao.IUserDao;
import com.web.user.dao.impl.UserDaoImpl;
import com.web.user.service.IUserService;
import com.web.user.service.impl.UserServiceImpl;


public class BeanFactory {
	private static IAdminDao adminDao;

	private static IAdminService adminService;

	private static IUserDao userDao;

	private static IUserService userService;

	public static Object getBean(String beanName) {
		if (beanName.equals("adminDao")) {
			adminDao = getAdminDao();
			return adminDao;
		}
		if (beanName.equals("adminService")) {
			adminService = getAdminService();
			return adminService;
		}
		if (beanName.equals("userDao")) {
			userDao = getUserDao();
			return userDao;
		}
		if (beanName.equals("userService")) {
			userService = getUserService();
			return userService;
		}
		return null;
	}

	private static IAdminService getAdminService() {
		
		if (adminService == null)
			adminService = new AdminServiceImpl();
		return adminService;
	}

	private static IUserService getUserService() {
		if (userService == null)
			userService = new UserServiceImpl();
		return userService;
	}

	private static IUserDao getUserDao() {
		if (userDao == null)
			userDao = new UserDaoImpl();
		return userDao;
	}

	private static IAdminDao getAdminDao() {
		if (adminDao == null)
			adminDao = new AdminDaoImpl();
		return adminDao;
	}

	
}