该软件能够根据公司的需要

				package tarena.proxy;
				
				import java.sql.Connection;
				import java.sql.Date;
				import java.util.List;
				import java.util.Map;
				
				import org.hibernate.Session;
				
				import tarena.business.*;
				import tarena.pojo.*;
				import tarena.util.HibernateSessionFactory;
				
				public class Business {
					private static AdminDAOImpl adminDAO = new AdminDAOImpl();
					private static ClassesDAOImpl classesDAO = new ClassesDAOImpl();
					private static CourseDAOImpl courseDAO = new CourseDAOImpl();
					private static ManagerDAOImpl managerDAO = new ManagerDAOImpl();
					private static PollDAOImpl pollDAO = new PollDAOImpl();
					private static StudentDAOImpl studentDAO = new StudentDAOImpl();
					private static TeacherDAOImpl teacherDAO = new TeacherDAOImpl();	
				
					public static boolean saveAdmin(Session session, Admin admin) {
						return adminDAO.save(session,admin);
					}
					
					public static boolean deleteAdmin(Session session, Admin admin) {
						return adminDAO.delete(session,admin);
					}
					
					public static boolean updateAdmin(Session session, Admin admin) {
						return adminDAO.update(session,admin);
					}
					
					public static Admin findAdmin(Session session, Integer id) {
						return adminDAO.find(session,id);
					}
					
					public static Admin findAdmin(Session session, String name) {
						return adminDAO.find(session,name);
					}
					
					public static Map findAdmin(Session session) {
						return adminDAO.find(session);
					}
					
					public static boolean saveClasses(Session session, Classes classes) {
						return classesDAO.save(session, classes);
					}
					
					public static boolean deleteClasses(Session session, Classes classes) {
						return classesDAO.delete(session, classes);
					}
					
					public static boolean updateClasses(Session session, Classes classes) {
						return classesDAO.update(session, classes);
					}
					
					public static Classes findClasses(Session session, Integer id) {
						return classesDAO.find(session, id);
					}
					
					public static Classes findClasses(Session session, String name) {
						return classesDAO.find(session, name);
					}
					
					public static Map findClasses(Session session) {
						return classesDAO.find(session);
					}
					
					public static boolean saveCourse(Session session, Course course) {
						return courseDAO.save(session,course);
					}
					
					public static boolean deleteCourse(Session session, Course course) {
						return courseDAO.delete(session, course);
					}
					
					public static boolean updateCourse(Session session, Course classes) {
						return courseDAO.update(session,classes);
					}
					
					public static Course findCourse(Session session, Integer id) {
						return courseDAO.find(session,id);
					}
					
					public static Course findCourse(Session session, String name) {
						return courseDAO.find(session,name);
					}
					
					public static Map findCourse(Session session) {
						return courseDAO.find(session);
					}	
				
					public static boolean saveManager(Session session, Manager manager) {
						return managerDAO.save(session,manager);
					}
					
					public static boolean deleteManager(Session session, Manager manager) {
						return managerDAO.delete(session,manager);
					}
					
					public static boolean updateManager(Session session, Manager manager) {
						return managerDAO.update(session,manager);
					}
					
					public static Manager findManager(Session session, Integer id) {
						return managerDAO.find(session,id);
					}
					
					public static Manager findManager(Session session, String name) {
						return managerDAO.find(session,name);
					}
					
					public static Map findManager(Session session) {
						return managerDAO.find(session);
					}	
				
					public static boolean savePoll(Session session, Poll poll) {
						return pollDAO.save(session,poll);
					}
					
					public static boolean savePoll(Connection conn, List allPoll) {
						return pollDAO.save(conn, allPoll);
					}	
					
					public static boolean deletePoll(Session session, Poll poll) {
						return pollDAO.delete(session,poll);
					}
				
					public static boolean deletePoll(Session session, List allPoll) {
						return pollDAO.delete(session,allPoll);
					}
					
					public static boolean updatePoll(Session session, Poll poll) {
						return pollDAO.update(session, poll);
					}
					
					public static Poll findPoll(Session session, Integer id) {
						return pollDAO.find(session, id);
					}
					
					public static List findPoll(Session session) {
						return pollDAO.find(session);
					}	
					
					public static List findPoll(Session session, Poll poll, Date startDate, Date endDate, String orderby) {
						return pollDAO.find(session, poll, startDate, endDate, orderby);
					}
					
					public static List findPoll(Session session, Date startDate, Date endDate, String orderby) {
						Session session1=HibernateSessionFactory.currentSession();
						return pollDAO.find(session1, startDate, endDate, orderby);
					}	
				
					public static boolean saveStudent(Session session, Student poll) {
						return studentDAO.save(session, poll);
					}
					
					public static boolean deleteStudent(Session session, Student poll) {
						return studentDAO.delete(session, poll);
					}
					
					public static boolean updateStudent(Session session, Student poll) {
						return studentDAO.update(session, poll);
					}
					
					public static Student findStudent(Session session, Integer id) {
						return studentDAO.find(session, id);
					}
					
					public static Student findStudent(Session session, String name) {
						return studentDAO.find(session, name);
					}
					
					public static Map findStudent(Session session) {
						return studentDAO.find(session);
					}		
					
					public static boolean saveTeacher(Session session, Teacher teacher) {
						return teacherDAO.save(session, teacher);
					}
					
					public static boolean deleteTeacher(Session session, Teacher teacher) {
						return teacherDAO.delete(session, teacher);
					}
					
					public static boolean updateTeacher(Session session, Teacher teacher) {
						return teacherDAO.update(session, teacher);
					}
					
					public static Teacher findTeacher(Session session, Integer id) {
						return teacherDAO.find(session, id);
					}
					
					public static Teacher findTeacher(Session session, String name) {
						return teacherDAO.find(session, name);
					}
					
					public static Map findTeacher(Session session) {
						return teacherDAO.find(session);
					}
				}