/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.versioning.dao.impl;
import org.dspace.content.Item;
import org.dspace.core.Context;
import org.dspace.core.AbstractHibernateDAO;
import org.dspace.versioning.VersionHistory;
import org.dspace.versioning.dao.VersionHistoryDAO;
import org.hibernate.Criteria;
import org.hibernate.criterion.Restrictions;
import java.sql.SQLException;
import java.util.List;
import org.dspace.versioning.Version;
import org.hibernate.criterion.Order;
/**
* Hibernate implementation of the Database Access Object interface class for the VersionHistory object.
* This class is responsible for all database calls for the VersionHistory object and is autowired by spring
* This class should never be accessed directly.
*
* @author Fabio Bolognesi (fabio at atmire dot com)
* @author Mark Diggory (markd at atmire dot com)
* @author Ben Bosman (ben at atmire dot com)
* @author kevinvandevelde at atmire.com
*/
public class VersionHistoryDAOImpl extends AbstractHibernateDAO<VersionHistory> implements VersionHistoryDAO
{
protected VersionHistoryDAOImpl()
{
super();
}
@Override
public VersionHistory findByItem(Context context, Item item) throws SQLException {
Criteria criteria = createCriteria(context, VersionHistory.class);
criteria.createAlias("versions", "v");
criteria.add(Restrictions.eq("v.item", item));
criteria.addOrder(Order.desc("v.versionNumber"));
return singleResult(criteria);
}
}