/*************************GO-LICENSE-START*********************************
* Copyright 2014 ThoughtWorks, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*************************GO-LICENSE-END***********************************/
package com.thoughtworks.go.server.dao;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.Component;
@Component
public class DbMetadataSqlMapDao extends HibernateDaoSupport implements DbMetadataDao {
@Autowired
public DbMetadataSqlMapDao(SessionFactory sessionFactory) {
setSessionFactory(sessionFactory);
}
public int getSchemaVersion() throws DataAccessException {
return (Integer) getHibernateTemplate().execute(new HibernateCallback() {
public Object doInHibernate(Session session) {
return session.createSQLQuery("select max(change_number) from changelog").uniqueResult();
}
});
}
}