Java tutorial
/* Developed by the European Commission - Directorate General for Maritime Affairs and Fisheries @ European Union, 2015-2016. This file is part of the Integrated Fisheries Data Management (IFDM) Suite. The IFDM Suite 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. The IFDM Suite 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 the IFDM Suite. If not, see <http://www.gnu.org/licenses/>. */ package eu.europa.ec.fisheries.uvms.spatial.service.dao; import static eu.europa.ec.fisheries.uvms.commons.service.dao.QueryParameter.with; import static org.apache.commons.collections.CollectionUtils.isNotEmpty; import javax.persistence.EntityManager; import java.util.List; import java.util.Map; import com.google.common.collect.ImmutableMap; import eu.europa.ec.fisheries.uvms.commons.service.exception.ServiceException; import eu.europa.ec.fisheries.uvms.commons.service.dao.AbstractDAO; import eu.europa.ec.fisheries.uvms.spatial.service.dto.config.ProjectionDto; import eu.europa.ec.fisheries.uvms.spatial.service.entity.ReportConnectSpatialEntity; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.transform.Transformers; public class ReportConnectSpatialDao extends AbstractDAO<ReportConnectSpatialEntity> { private static final String REPORT_ID = "reportId"; private EntityManager em; public ReportConnectSpatialDao(EntityManager em) { this.em = em; } @Override public EntityManager getEntityManager() { return em; } public ReportConnectSpatialEntity findByReportId(Long reportId) throws ServiceException { ReportConnectSpatialEntity entity = null; List<ReportConnectSpatialEntity> list = findEntityByNamedQuery(ReportConnectSpatialEntity.class, ReportConnectSpatialEntity.FIND_BY_REPORT_ID, with(REPORT_ID, reportId).parameters(), 1); if (isNotEmpty(list)) { entity = list.get(0); } return entity; } public List<ReportConnectSpatialEntity> findByConnectId(Long id) throws ServiceException { return findEntityByNamedQuery(ReportConnectSpatialEntity.class, ReportConnectSpatialEntity.FIND_BY_REPORT_CONNECT_ID, with("id", id).parameters(), 1); } public List<ReportConnectSpatialEntity> findByReportIdAndConnectId(Long reportId, Long id) throws ServiceException { return findEntityByNamedQuery(ReportConnectSpatialEntity.class, ReportConnectSpatialEntity.FIND_BY_ID, with(REPORT_ID, reportId).and("id", id).parameters(), 1); } public void deleteById(List<Long> reportIds) throws ServiceException { if (isNotEmpty(reportIds)) { deleteEntityByNamedQuery(ReportConnectSpatialEntity.class, ReportConnectSpatialEntity.DELETE_BY_ID_LIST, with("idList", reportIds).parameters()); } } public List<ProjectionDto> findProjectionByMap(long reportId) { Map<String, Object> parameters = ImmutableMap.<String, Object>builder().put(REPORT_ID, reportId).build(); Query query = em.unwrap(Session.class).getNamedQuery(ReportConnectSpatialEntity.FIND_MAP_PROJ_BY_ID); for (Map.Entry<String, Object> entry : parameters.entrySet()) { query.setParameter(entry.getKey(), entry.getValue()); } query.setResultTransformer(Transformers.aliasToBean(ProjectionDto.class)); return query.list(); } }