academicyeardaohibernate.java.svn-base

菲律宾的一个大学的图书管理系统 spring+hibernate+velocity

/*
 * 创建日期 2005-5-16
 */
package biz.bluesky.pts.service.dao.impl;

import java.util.List;

import org.springframework.orm.hibernate.support.HibernateDaoSupport;
import org.springframework.orm.ObjectRetrievalFailureException;

import biz.bluesky.pts.model.TAcademicyear;
import biz.bluesky.pts.service.dao.IAcademicyearDAO;


public class AcademicyearDAOHibernate extends BaseDAOHibernate implements
        IAcademicyearDAO {

    //查询所有的学年
    public List findAcademicyears() {
        return getHibernateTemplate().find("from TAcademicyear");
    }

    //查询当前的学年
    public TAcademicyear findCurrentyear() {
        List list = getHibernateTemplate().find("from TAcademicyear academicyear where academicyear.isCurrentYear=?",new Boolean(true));
        
        if(list.size() < 1) {
            return null;
        }
        else {
            return (TAcademicyear)list.get(0);
        }
    }

    //根据学年编号查询学年
    public TAcademicyear findAcademicyear(int academicyearId) {
        TAcademicyear academicyear = (TAcademicyear)getHibernateTemplate().get(TAcademicyear.class,new Integer(academicyearId));
        
        if(academicyear == null) {
            throw new ObjectRetrievalFailureException(TAcademicyear.class,new Integer(academicyearId));
        }
        
        return academicyear;
    }

    //新增学年
    public void saveAcademicyear(TAcademicyear academicyear) {
        getHibernateTemplate().saveOrUpdate(academicyear);
        getHibernateTemplate().flush();
    }

    //删除学年
    public void removeAcademicyear(int academicyearId) {
        TAcademicyear academicyear = findAcademicyear(academicyearId);
        getHibernateTemplate().delete(academicyear);
    }

}