Java tutorial
/** * Copyright (C) 2012-2015 52North Initiative for Geospatial Open Source * Software GmbH * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. * * If the program is linked with libraries which are licensed under one of * the following licenses, the combination of the program with the linked * library is not considered a "derivative work" of the program: * * - Apache License, version 2.0 * - Apache Software License, version 1.0 * - GNU Lesser General Public License, version 3 * - Mozilla Public License, versions 1.0, 1.1 and 2.0 * - Common Development and Distribution License (CDDL), version 1.0 * * Therefore the distribution of the program linked with libraries licensed * under the aforementioned licenses, is permitted by the copyright holders * if the distribution is compliant with both the GNU General Public * License version 2 and the aforementioned licenses. * * This program 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. */ package org.n52.sos.ds.hibernate.dao.ereporting; import org.hibernate.Criteria; import org.hibernate.Session; import org.hibernate.criterion.Restrictions; import org.n52.sos.aqd.AqdSamplingPoint; import org.n52.sos.ds.hibernate.dao.AbstractIdentifierNameDescriptionDAO; import org.n52.sos.ds.hibernate.entities.ereporting.EReportingSamplingPoint; import org.n52.sos.ds.hibernate.util.HibernateHelper; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * DAO class for entity {@link EReportingSamplingPoint} * * @author Carsten Hollmann <c.hollmann@52north.org> * @since 4.3.0 * */ public class EReportingSamplingPointDAO extends AbstractIdentifierNameDescriptionDAO { private static final Logger LOGGER = LoggerFactory.getLogger(EReportingSamplingPointDAO.class); /** * Get default Hibernate Criteria for querying sampling point * * @param session * Hibernate Session * @return Default criteria */ public Criteria getDefaultCriteria(Session session) { return session.createCriteria(EReportingSamplingPoint.class) .setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY); } /** * Get the {@link EReportingSamplingPoint} for the id * * @param samplingPointId * Id to get {@link EReportingSamplingPoint} for * @param session * Hibernate session * @return The resulting {@link EReportingSamplingPoint} */ public EReportingSamplingPoint getEReportingSamplingPoint(long samplingPointId, Session session) { Criteria c = getDefaultCriteria(session); c.add(Restrictions.eq(EReportingSamplingPoint.ID, samplingPointId)); LOGGER.debug("QUERY getEReportingSamplingPoint(samplingPointId): {}", HibernateHelper.getSqlString(c)); return (EReportingSamplingPoint) c.uniqueResult(); } /** * Get the {@link EReportingSamplingPoint} for the identifier * * @param identifier * Identifier to get {@link EReportingSamplingPoint} for * @param session * Hibernate session * @return The resulting {@link EReportingSamplingPoint} */ public EReportingSamplingPoint getEReportingSamplingPoint(String identifier, Session session) { Criteria c = getDefaultCriteria(session); c.add(Restrictions.eq(EReportingSamplingPoint.IDENTIFIER, identifier)); LOGGER.debug("QUERY getEReportingSamplingPoint(identifier): {}", HibernateHelper.getSqlString(c)); return (EReportingSamplingPoint) c.uniqueResult(); } /** * Get or insert {@link AqdSamplingPoint} * * @param samplingPoint * {@link AqdSamplingPoint} to insert * @param session * Hibernate session * @return The resulting {@link EReportingSamplingPoint} */ public EReportingSamplingPoint getOrInsert(AqdSamplingPoint samplingPoint, Session session) { Criteria c = getDefaultCriteria(session); c.add(Restrictions.eq(EReportingSamplingPoint.IDENTIFIER, samplingPoint.getIdentifier())); LOGGER.debug("QUERY getOrIntert(samplingPoint): {}", HibernateHelper.getSqlString(c)); EReportingSamplingPoint eReportingSamplingPoint = (EReportingSamplingPoint) c.uniqueResult(); if (eReportingSamplingPoint == null) { eReportingSamplingPoint = new EReportingSamplingPoint(); addIdentifierNameDescription(samplingPoint, eReportingSamplingPoint, session); eReportingSamplingPoint.setAssessmentType( new EReportingAssessmentTypeDAO().getOrInsert(samplingPoint.getAssessmentType(), session)); session.save(eReportingSamplingPoint); session.flush(); session.refresh(eReportingSamplingPoint); } return eReportingSamplingPoint; } }