/*
 * Copyright (C) 2005-2010 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
 */

package org.alfresco.repo.attributes.hibernate;

import java.util.List;

import org.alfresco.repo.attributes.MapAttribute;
import org.alfresco.repo.attributes.MapEntry;
import org.alfresco.repo.attributes.MapEntryDAO;
import org.alfresco.repo.attributes.MapEntryImpl;
import org.alfresco.repo.attributes.MapEntryKey;
import org.alfresco.repo.domain.hibernate.DirtySessionMethodInterceptor;
import org.hibernate.Query;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

/**
 * Hibernate implementation of persistence for MapEntries.
 * @author britt
 */
public class MapEntryDAOHibernate extends HibernateDaoSupport implements
        MapEntryDAO
{
    /* (non-Javadoc)
     * @see org.alfresco.repo.attributes.MapEntryDAO#delete(org.alfresco.repo.attributes.MapEntry)
     */
    public void delete(MapEntry entry)
    {
        getSession().delete(entry);
    }

    /* (non-Javadoc)
     * @see org.alfresco.repo.attributes.MapEntryDAO#delete(org.alfresco.repo.attributes.MapAttribute)
     */
    public void delete(MapAttribute mapAttr)
    {
        Query query = getSession().createQuery("delete from MapEntryImpl me where me.key.map = :map");
        query.setEntity("map", mapAttr);
        query.executeUpdate();
    }

    /* (non-Javadoc)
     * @see org.alfresco.repo.attributes.MapEntryDAO#get(org.alfresco.repo.attributes.MapAttribute, java.lang.String)
     */
    public MapEntry get(MapEntryKey key)
    {
        return (MapEntry)getSession().get(MapEntryImpl.class, key);
    }

    /* (non-Javadoc)
     * @see org.alfresco.repo.attributes.MapEntryDAO#get(org.alfresco.repo.attributes.MapAttribute)
     */
    @SuppressWarnings("unchecked")
    public List<MapEntry> get(MapAttribute mapAttr)
    {
        Query query = getSession().createQuery("from MapEntryImpl me where me.key.map = :map");
        query.setEntity("map", mapAttr);
        DirtySessionMethodInterceptor.setQueryFlushMode(getSession(), query);
        return (List<MapEntry>)query.list();
    }

    /* (non-Javadoc)
     * @see org.alfresco.repo.attributes.MapEntryDAO#save(org.alfresco.repo.attributes.MapEntry)
     */
    public void save(MapEntry entry)
    {
        getSession().save(entry);
    }

    /* (non-Javadoc)
     * @see org.alfresco.repo.attributes.MapEntryDAO#size(org.alfresco.repo.attributes.MapAttribute)
     */
    public int size(MapAttribute mapAttr)
    {
        Query query = getSession().createQuery("select count(*) from MapEntryImpl me where me.key.map = :map");
        query.setEntity("map", mapAttr);
        DirtySessionMethodInterceptor.setQueryFlushMode(getSession(), query);
        return ((Long)query.uniqueResult()).intValue();
    }

    /* (non-Javadoc)
     * @see org.alfresco.repo.attributes.MapEntryDAO#evict(org.alfresco.repo.attributes.MapEntry)
     */
    public void evict(MapEntry entry)
    {
    }
}