?? noticedao.java
字號:
package com.demo.hibernate.dao;
import java.util.List;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Projections;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import com.demo.hibernate.beans.Notice;
import com.demo.struts2.util.Pager;
public class NoticeDAO extends HibernateDaoSupport implements INoticeDAO {
/**
* when have pageSize and pageNo parameters
*/
public Pager findPager(final int pageSize,
final int pageNo) {
Session session = getHibernateTemplate().getSessionFactory().openSession();
// set query condition
Criteria criteria = session.createCriteria(Notice.class);
// get total count
int rowCount = ((Integer) criteria.setProjection(
Projections.rowCount()).uniqueResult()).intValue();
criteria.setProjection(null);
// get current page list
int startIndex = pageSize * (pageNo - 1);
criteria.addOrder(Order.desc("sendtime"));
criteria.setFirstResult(startIndex);
criteria.setMaxResults(pageSize);
List result = criteria.list();
session.close();
return new Pager(pageSize, pageNo, rowCount, result);
}
public Notice findById(String id) {
return (Notice) getHibernateTemplate().get(Notice.class,
new Integer(id));
}
public void insert(Notice notice) {
getHibernateTemplate().save(notice);
}
public void update(Notice notice) {
getHibernateTemplate().update(notice);
}
public void delete(String id) {
Object p = getHibernateTemplate().load(Notice.class, new Integer(id));
getHibernateTemplate().delete(p);
}
}
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