Java tutorial
/* * Copyright 2010 CENATIC * * 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. */ package net.neurowork.cenatic.centraldir.dao.impl; import java.util.Collection; import java.util.List; import net.neurowork.cenatic.centraldir.dao.CantDeleteEntityException; import net.neurowork.cenatic.centraldir.dao.DaoException; import net.neurowork.cenatic.centraldir.dao.SectorDao; import net.neurowork.cenatic.centraldir.model.satelite.Sector; import org.hibernate.ObjectNotFoundException; import org.hibernate.criterion.DetachedCriteria; import org.hibernate.criterion.Order; import org.hibernate.criterion.Restrictions; import org.hibernate.exception.ConstraintViolationException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.dao.DataAccessException; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; /** * * @author Alejandro Sanchez Acosta <asanchez@neurowork.net> http://www.neurowork.net * @since 03/12/2010 */ public class HibernateSectorDaoImpl extends HibernateDaoSupport implements SectorDao { private final static Logger logger = LoggerFactory.getLogger(HibernateSectorDaoImpl.class); @Override public void save(Sector sector) throws DaoException { if (logger.isTraceEnabled()) logger.trace("Saving Sector: " + sector); getHibernateTemplate().saveOrUpdate(sector); } @Override public Sector findById(Integer id) throws DaoException { if (logger.isTraceEnabled()) logger.trace("Loading Sector width id: " + id); try { return getHibernateTemplate().load(Sector.class, id); } catch (ObjectNotFoundException e) { return null; } catch (DataAccessException e) { throw new DaoException(e.getMessage()); } } @SuppressWarnings("unchecked") @Override public Collection<Sector> findByName(String name) throws DaoException { if (logger.isTraceEnabled()) logger.trace("Hibernate Searching Sector with name:" + name); DetachedCriteria criteria = DetachedCriteria.forClass(Sector.class); criteria.add(Restrictions.like("name", "%" + name + "%")); criteria.addOrder(Order.asc("name")); return (List<Sector>) getHibernateTemplate().findByCriteria(criteria); } @Override public List<Sector> getAll() throws DaoException { if (logger.isTraceEnabled()) logger.trace("Loading all Sectores"); return getHibernateTemplate().loadAll(Sector.class); } @Override public void delete(Sector sector) throws DaoException, CantDeleteEntityException { if (logger.isTraceEnabled()) logger.trace("Deleting Sector:" + sector); try { getHibernateTemplate().delete(sector); if (logger.isTraceEnabled()) logger.trace("Deleting Complete. Flusing"); getHibernateTemplate().flush(); if (logger.isTraceEnabled()) logger.trace("Flusing Complete"); } catch (ConstraintViolationException e) { throw new CantDeleteEntityException(e.getMessage()); } } }