Java tutorial
/* * The MIT License * * Copyright 2014 J. David Mendoza <jdmendozar@gmail.com>. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package org.davidmendoza.irsvped.dao.impl; import java.util.Map; import org.davidmendoza.irsvped.dao.BaseDao; import org.davidmendoza.irsvped.dao.MessageDao; import org.davidmendoza.irsvped.model.Message; import org.hibernate.Criteria; import org.hibernate.Query; import org.hibernate.criterion.Disjunction; import org.hibernate.criterion.MatchMode; import org.hibernate.criterion.Order; import org.hibernate.criterion.Projections; import org.hibernate.criterion.Restrictions; import org.springframework.stereotype.Repository; import org.springframework.transaction.annotation.Transactional; /** * * @author J. David Mendoza <jdmendozar@gmail.com> */ @Repository @Transactional public class MessageDaoHibernate extends BaseDao implements MessageDao { @Transactional(readOnly = true) @Override public Map<String, Object> list(Map<String, Object> params) { log.debug("Message list"); Criteria criteria = currentSession().createCriteria(Message.class); Criteria countCriteria = currentSession().createCriteria(Message.class); if (params.containsKey("filter")) { String filter = (String) params.get("filter"); Disjunction properties = Restrictions.disjunction(); properties.add(Restrictions.ilike("name", filter, MatchMode.ANYWHERE)); properties.add(Restrictions.ilike("subject", filter, MatchMode.ANYWHERE)); properties.add(Restrictions.ilike("content", filter, MatchMode.ANYWHERE)); criteria.add(properties); countCriteria.add(properties); } if (params.containsKey("max")) { criteria.setMaxResults((Integer) params.get("max")); if (params.containsKey("offset")) { criteria.setFirstResult((Integer) params.get("offset")); } } if (params.containsKey("sort")) { if (((String) params.get("order")).equals("desc")) { criteria.addOrder(Order.desc((String) params.get("sort"))); params.put("order", "asc"); } else { criteria.addOrder(Order.asc((String) params.get("sort"))); params.put("order", "desc"); } } params.put("list", criteria.list()); countCriteria.setProjection(Projections.rowCount()); if (!countCriteria.list().isEmpty()) { params.put("totalItems", countCriteria.list().get(0)); } else { params.put("totalItems", 0L); } return params; } @Transactional(readOnly = true) @Override public Message get(Long messageId) { return (Message) currentSession().get(Message.class, messageId); } @Override public Message update(Message message) { currentSession().update(message); return message; } @Override public Message get(String name) { Query query = currentSession().getNamedQuery("findMessageByName"); query.setString("name", name); return (Message) query.uniqueResult(); } @Override public Message create(Message message) { currentSession().save(message); return message; } }