Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 org.openmeetings.app.data.flvrecord; import java.util.List; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import javax.persistence.TypedQuery; import org.openmeetings.app.OpenmeetingsVariables; import org.openmeetings.app.persistence.beans.flvrecord.FlvRecordingMetaDelta; import org.red5.logging.Red5LoggerFactory; import org.slf4j.Logger; import org.springframework.transaction.annotation.Transactional; /** * @author sebastianwagner * */ @Transactional public class FlvRecordingMetaDeltaDaoImpl { private static final Logger log = Red5LoggerFactory.getLogger(FlvRecordingMetaDeltaDaoImpl.class, OpenmeetingsVariables.webAppRootKey); @PersistenceContext private EntityManager em; public List<FlvRecordingMetaDelta> getFlvRecordingMetaDeltaByMetaId(Long flvRecordingMetaDataId) { try { String hql = "SELECT c FROM FlvRecordingMetaDelta c " + "WHERE c.flvRecordingMetaDataId = :flvRecordingMetaDataId"; TypedQuery<FlvRecordingMetaDelta> query = em.createQuery(hql, FlvRecordingMetaDelta.class); query.setParameter("flvRecordingMetaDataId", flvRecordingMetaDataId); List<FlvRecordingMetaDelta> flvRecordingMetaDeltas = query.getResultList(); return flvRecordingMetaDeltas; } catch (Exception ex2) { log.error("[getFlvRecordingMetaDeltaByMetaId]: ", ex2); } return null; } public Long addFlvRecordingMetaDelta(FlvRecordingMetaDelta flvRecordingMetaDelta) { try { flvRecordingMetaDelta = em.merge(flvRecordingMetaDelta); Long flvRecordingMetaDeltaId = flvRecordingMetaDelta.getFlvRecordingMetaDeltaId(); log.debug("flvRecordingMetaDeltaId " + flvRecordingMetaDeltaId); return flvRecordingMetaDeltaId; } catch (Exception ex2) { log.error("[addFlvRecordingMetaDelta]: ", ex2); } return null; } public Long updateFlvRecordingMetaDelta(FlvRecordingMetaDelta flvRecordingMetaDelta) { try { if (flvRecordingMetaDelta.getFlvRecordingMetaDataId() == 0) { em.persist(flvRecordingMetaDelta); } else { if (!em.contains(flvRecordingMetaDelta)) { em.merge(flvRecordingMetaDelta); } } return flvRecordingMetaDelta.getFlvRecordingMetaDataId(); } catch (Exception ex2) { log.error("[updateFlvRecordingMetaDelta]: ", ex2); } return null; } }