com.trailmagic.user.hibernate.HibernateGroupFactory.java Source code

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Here is the source code for com.trailmagic.user.hibernate.HibernateGroupFactory.java

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/*
 * Copyright (c) 2006 Oliver Stewart.  All Rights Reserved.
 *
 * This file is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This file is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */
package com.trailmagic.user.hibernate;

import com.trailmagic.user.Group;
import com.trailmagic.user.GroupFactory;
import com.trailmagic.user.User;
import java.util.List;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.springframework.dao.DataAccessException;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.HibernateTemplate;

public class HibernateGroupFactory implements GroupFactory {
    private HibernateTemplate m_hibernateTemplate;

    private static final String BY_NAME_QUERY = "groupByName";
    private static final String FOR_USER_QUERY = "groupsForUser";

    public void setHibernateTemplate(HibernateTemplate template) {
        m_hibernateTemplate = template;
    }

    public Group getById(final long id) {
        return (Group) m_hibernateTemplate.execute(new HibernateCallback() {
            public Object doInHibernate(Session session) {
                return session.get(Group.class, new Long(id));
            }
        });
    }

    public Group getByName(final String groupName) {
        return (Group) m_hibernateTemplate.execute(new HibernateCallback() {
            public Object doInHibernate(Session session) {
                Query qry = session.getNamedQuery(BY_NAME_QUERY);
                qry.setString("name", groupName);
                return qry.uniqueResult();
            }
        });
    }

    public List<Group> getForUser(final User user) {
        return (List<Group>) m_hibernateTemplate.execute(new HibernateCallback() {
            public Object doInHibernate(Session session) {
                Query qry = session.getNamedQuery(FOR_USER_QUERY);
                qry.setEntity("user", user);
                return qry.list();
            }
        });
    }
}