/** * 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.apache.ambari.server.orm.dao; import java.util.List; import javax.persistence.EntityManager; import javax.persistence.NoResultException; import javax.persistence.TypedQuery; import org.apache.ambari.server.orm.RequiresSession; import org.apache.ambari.server.orm.entities.ClusterServiceEntity; import org.apache.ambari.server.orm.entities.ClusterServiceEntityPK; import com.google.inject.Inject; import com.google.inject.Provider; import com.google.inject.Singleton; import com.google.inject.persist.Transactional; @Singleton public class ClusterServiceDAO { @Inject Provider<EntityManager> entityManagerProvider; @Inject DaoUtils daoUtils; @RequiresSession public ClusterServiceEntity findByPK(ClusterServiceEntityPK clusterServiceEntityPK) { return entityManagerProvider.get().find(ClusterServiceEntity.class, clusterServiceEntityPK); } @RequiresSession public ClusterServiceEntity findByClusterAndServiceNames(String clusterName, String serviceName) { TypedQuery<ClusterServiceEntity> query = entityManagerProvider.get() .createNamedQuery("clusterServiceByClusterAndServiceNames", ClusterServiceEntity.class); query.setParameter("clusterName", clusterName); query.setParameter("serviceName", serviceName); try { return query.getSingleResult(); } catch (NoResultException ignored) { return null; } } @RequiresSession public List<ClusterServiceEntity> findAll() { return daoUtils.selectAll(entityManagerProvider.get(), ClusterServiceEntity.class); } @Transactional public void refresh(ClusterServiceEntity clusterServiceEntity) { entityManagerProvider.get().refresh(clusterServiceEntity); } @Transactional public void create(ClusterServiceEntity clusterServiceEntity) { entityManagerProvider.get().persist(clusterServiceEntity); } @Transactional public ClusterServiceEntity merge(ClusterServiceEntity clusterServiceEntity) { return entityManagerProvider.get().merge(clusterServiceEntity); } @Transactional public void remove(ClusterServiceEntity clusterServiceEntity) { entityManagerProvider.get().remove(merge(clusterServiceEntity)); } @Transactional public void removeByPK(ClusterServiceEntityPK clusterServiceEntityPK) { ClusterServiceEntity entity = findByPK(clusterServiceEntityPK); entityManagerProvider.get().remove(entity); } }