classesdaoimp.java

学生成绩管理系统

package com.stuman.dao.imp;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.HibernateException;
import org.hibernate.Session;

import com.stuman.dao.ClassesDAO;
import com.stuman.dao.hibernate.HibernateUtil;
import com.stuman.domain.Classes;
import com.stuman.domain.Teacher;
 
import com.stuman.util.BaseDao;
import com.stuman.util.PageBean;

public class ClassesDAOImp extends BaseDao implements ClassesDAO{

	private static Log log = LogFactory.getLog(ClassesDAOImp.class);

	/*
	 * （非 Javadoc）
	 * @see com.stuman.dao.ClassesDAO#getClasses()
	 */
	public List getClasses() {
		try {
			Session s = HibernateUtil.currentSession();
			HibernateUtil.beginTransaction();
			List results = s.createQuery("from Classes cla").list();
			HibernateUtil.commitTransaction();
			HibernateUtil.closeSession();
			if (results != null && results.size() > 0) {
				return results;
			}
		} catch (HibernateException e) {
			log.fatal(e);
		}
		return null;
	}

	/*
	 * （非 Javadoc）
	 * @see com.stuman.dao.ClassesDAO#deleteClassesByID(java.lang.String)
	 */
	public boolean deleteClassesByID(String id) {
		try {
			Session s = HibernateUtil.currentSession();
			HibernateUtil.beginTransaction();
			Classes cla = (Classes) s.load(Classes.class, id);
			System.out.println(cla.getId());
			s.delete(cla);
			HibernateUtil.commitTransaction();
			s.flush();
			HibernateUtil.closeSession();
			return true;		
		} catch (HibernateException e) {
			log.fatal(e);
		}		
		return false;
	}

/*
 * （非 Javadoc）
 * @see com.stuman.dao.ClassesDAO#getClassesByID(java.lang.String)
 */
	public Classes getClassesByID(String id) {
		try {
			Session s = HibernateUtil.currentSession();
			HibernateUtil.beginTransaction();
			Classes cla = (Classes) s.load(Classes.class, id);
			HibernateUtil.commitTransaction();
		 
			HibernateUtil.closeSession();
			return cla;		
		} catch (HibernateException e) {
			log.fatal(e);
		}		
		return null;
	}

/*
 * （非 Javadoc）
 * @see com.stuman.dao.ClassesDAO#updateClasses(com.stuman.domain.Classes)
 */
	public boolean updateClasses(Classes cla) {
		try {
			Session s = HibernateUtil.currentSession();
			HibernateUtil.beginTransaction();
			System.out.println("cla=["+cla.getRoomId()+"]时间=["+cla.getCourTime());
			s.update(cla);
			System.out.println("update Classes id =" + cla.getId());
			HibernateUtil.commitTransaction();
			s.flush();
			HibernateUtil.closeSession();
			return true;		
		} catch (HibernateException e) {
			log.fatal(e);
		}		
		return false;
	}


	/*
	 * （非 Javadoc）
	 * @see com.stuman.dao.ClassesDAO#saveClasses(com.stuman.domain.Classes)
	 */public boolean saveClasses(Classes cla) {
		try {
			Session s = HibernateUtil.currentSession();
			HibernateUtil.beginTransaction();			
			s.saveOrUpdate(cla);
			System.out.println("save Classes id =" + cla.getId());
			HibernateUtil.commitTransaction();
			s.flush();
			HibernateUtil.closeSession();
			return true;		
		} catch (HibernateException e) {
			log.fatal(e);
		}		
		return false;
	}
	/*
	 * (non-Javadoc)
	 * @see com.stuman.dao.ClassesDAO#getClassesList(com.stuman.util.PageBean)
	 */
	public PageBean getClassesList(PageBean page){
		PageBean page2= this.getObjects(Classes.class, page);
		 
		return page2;
	}
	
	public List getTeacherList(){
	 
		try {
			Session s = HibernateUtil.currentSession();
			HibernateUtil.beginTransaction();
			List results = s.createQuery("from Teacher cla").list();
			HibernateUtil.commitTransaction();
			HibernateUtil.closeSession();
			if (results != null && results.size() > 0) {
				return results;
			}
		} catch (HibernateException e) {
			log.fatal(e);
		}
		return null;
	}
	public List getCourseList(){
		try {
			Session s = HibernateUtil.currentSession();
			HibernateUtil.beginTransaction();
			List results = s.createQuery("from Course cla").list();
			HibernateUtil.commitTransaction();
			HibernateUtil.closeSession();
			if (results != null && results.size() > 0) {
				return results;
			}
		} catch (HibernateException e) {
			log.fatal(e);
		}
		return null;
	}
	
	public PageBean getClassesListForTeacher(PageBean page){
		PageBean page2= this.getObjects(Classes.class, page);
		 
		return page2;
	}
}