package com.mustafaiev.tair.cts.dao.jpa;
import org.apache.log4j.Logger;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import com.mustafaiev.tair.cts.dao.IGroupDAO;
import com.mustafaiev.tair.cts.exeption.DataNotRemovedException;
import com.mustafaiev.tair.cts.exeption.DataNotRetrievedException;
import com.mustafaiev.tair.cts.exeption.DataNotStoredException;
import com.mustafaiev.tair.cts.model.Group;
@Repository(value = "groupDao")
@Transactional
public class GroupDAO implements IGroupDAO {
private static final Logger LOGGER = Logger.getLogger(GroupDAO.class);
private static final String RETRIEVE_GROUP_BY_ID = "from Group where id = ?";
private HibernateTemplate hibernateTemplate;
@Autowired
public void setHibernateTemplate(final HibernateTemplate hibernateTemplate) {
this.hibernateTemplate = hibernateTemplate;
}
@Override
public void doSave(final Group t) throws DataNotStoredException {
final Session session = this.hibernateTemplate.getSessionFactory()
.openSession();
final Transaction transaction = session.getTransaction();
try {
transaction.begin();
session.save(t);
transaction.commit();
} catch (final HibernateException e) {
LOGGER.error(e);
}
}
@Override
public void doUpdate(final Group t) throws DataNotStoredException {
final Session session = this.hibernateTemplate.getSessionFactory()
.openSession();
final Transaction transaction = session.getTransaction();
try {
transaction.begin();
session.refresh(t);
transaction.commit();
} catch (final HibernateException e) {
LOGGER.error(e);
}
}
@Override
public Group retrieveGroup(final Long id) throws DataNotRetrievedException {
final Session session = this.hibernateTemplate.getSessionFactory()
.openSession();
final Query query = session.createQuery(RETRIEVE_GROUP_BY_ID);
query.setLong(0, id);
final Group group = (Group) query.uniqueResult();
return group;
}
@Override
public void doDelete(final Group t) throws DataNotRemovedException {
final Session session = this.hibernateTemplate.getSessionFactory()
.openSession();
final Transaction transaction = session.getTransaction();
try {
transaction.begin();
session.delete(t);
transaction.commit();
} catch (final HibernateException e) {
LOGGER.error(e);
}
}
@Override
public void doDeleteById(final Long id) throws DataNotRemovedException {
}
}