menudaohibernate.java

Strut数据库开发中的JSF项目

package com.relationinfo.dao.hibernate;

import java.util.List;

import com.relationinfo.model.Menu;
import com.relationinfo.dao.MenuDAO;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.criterion.Example;
import org.hibernate.criterion.MatchMode;

import org.springframework.orm.ObjectRetrievalFailureException;
import org.springframework.orm.hibernate3.HibernateCallback;

public class MenuDAOHibernate extends BaseDAOHibernate implements MenuDAO {

    /**
     * @see com.relationinfo.dao.MenuDAO#getMenus(com.relationinfo.model.Menu)
     */
    public List getMenus(final Menu menu) {
        if (menu == null) {
            return getHibernateTemplate().find("from Menu");
        } else {
            // filter on properties set in the menu
            HibernateCallback callback = new HibernateCallback() {
                public Object doInHibernate(Session session) throws HibernateException {
                    Example ex = Example.create(menu).ignoreCase().enableLike(MatchMode.ANYWHERE);
                    return session.createCriteria(Menu.class).add(ex).list();
                }
            };
            return (List) getHibernateTemplate().execute(callback);
        }
    }

    /**
     * @see com.relationinfo.dao.MenuDAO#getMenu(String menucode)
     */
    public Menu getMenu(final String menucode) {
        Menu menu = (Menu) getHibernateTemplate().get(Menu.class, menucode);
        if (menu == null) {
            log.warn("uh oh, menu with menucode '" + menucode + "' not found...");
            throw new ObjectRetrievalFailureException(Menu.class, menucode);
        }

        return menu;
    }

    /**
     * @see com.relationinfo.dao.MenuDAO#saveMenu(Menu menu)
     */    
    public void saveMenu(final Menu menu) {
        getHibernateTemplate().saveOrUpdate(menu);
    }

    /**
     * @see com.relationinfo.dao.MenuDAO#removeMenu(String menucode)
     */
    public void removeMenu(final String menucode) {
        getHibernateTemplate().delete(getMenu(menucode));
    }
}