Java tutorial
/* * Copyright (c) 2004-2013 YAMJ Members * https://github.com/organizations/YAMJ/teams * * This file is part of the Yet Another Media Jukebox (YAMJ). * * YAMJ is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * YAMJ is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with YAMJ. If not, see <http://www.gnu.org/licenses/>. * * Web: https://github.com/YAMJ/yamj-v3 * */ package org.yamj.core.database.dao; import java.util.ArrayList; import java.util.Collections; import java.util.List; import org.hibernate.SQLQuery; import org.yamj.core.database.model.dto.QueueDTO; import org.yamj.core.database.model.dto.QueueDTOComparator; import org.springframework.stereotype.Service; import org.yamj.core.database.model.MediaFile; import org.yamj.core.hibernate.HibernateDao; @Service("mediaDao") public class MediaDao extends HibernateDao { public MediaFile getMediaFile(Long id) { return getById(MediaFile.class, id); } public MediaFile getMediaFile(String fileName) { return (MediaFile) getSession().byNaturalId(MediaFile.class).using("fileName", fileName).load(); } @SuppressWarnings("unchecked") public List<QueueDTO> getMediaQueue(final CharSequence sql, final int maxResults) { SQLQuery query = getSession().createSQLQuery(sql.toString()); query.setReadOnly(true); query.setCacheable(true); if (maxResults > 0) { query.setMaxResults(maxResults); } List<QueueDTO> queueElements = new ArrayList<QueueDTO>(); List<Object[]> objects = query.list(); for (Object[] object : objects) { QueueDTO queueElement = new QueueDTO(); queueElement.setId(convertRowElementToLong(object[0])); queueElement.setDate(convertRowElementToDate(object[2])); if (queueElement.getDate() == null) { queueElement.setDate(convertRowElementToDate(object[1])); } queueElements.add(queueElement); } Collections.sort(queueElements, new QueueDTOComparator()); return queueElements; } }