content: /*
   * 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 jakarta.persistence.EntityManager;
  import jakarta.persistence.NoResultException;
  import jakarta.persistence.TypedQuery;
  
  import org.apache.ambari.server.orm.RequiresSession;
  import org.apache.ambari.server.orm.entities.ServiceDesiredStateEntity;
  import org.apache.ambari.server.orm.entities.ServiceDesiredStateEntityPK;
  
  import com.google.inject.Inject;
  import com.google.inject.Provider;
  import com.google.inject.Singleton;
  import com.google.inject.persist.Transactional;
  
  @Singleton
  public class ServiceDesiredStateDAO {
    @Inject
    Provider<EntityManager> entityManagerProvider;
  
    @RequiresSession
    public ServiceDesiredStateEntity findByPK(ServiceDesiredStateEntityPK primaryKey) {
      return entityManagerProvider.get().find(ServiceDesiredStateEntity.class, primaryKey);
    }
  
    @RequiresSession
    public List<ServiceDesiredStateEntity> findAll() {
      TypedQuery<ServiceDesiredStateEntity> query =
        entityManagerProvider.get().
          createQuery("SELECT sd from ServiceDesiredStateEntity sd", ServiceDesiredStateEntity.class);
      try {
        return query.getResultList();
      } catch (NoResultException ignored) {
      }
      return null;
    }
  
    @Transactional
    public void refresh(ServiceDesiredStateEntity serviceDesiredStateEntity) {
      entityManagerProvider.get().refresh(serviceDesiredStateEntity);
    }
  
    @Transactional
    public void create(ServiceDesiredStateEntity serviceDesiredStateEntity) {
      entityManagerProvider.get().persist(serviceDesiredStateEntity);
    }
  
    @Transactional
    public ServiceDesiredStateEntity merge(ServiceDesiredStateEntity serviceDesiredStateEntity) {
      return entityManagerProvider.get().merge(serviceDesiredStateEntity);
    }
  
    @Transactional
    public void remove(ServiceDesiredStateEntity serviceDesiredStateEntity) {
      entityManagerProvider.get().remove(merge(serviceDesiredStateEntity));
    }
  
    @Transactional
    public void removeByPK(ServiceDesiredStateEntityPK primaryKey) {
      remove(findByPK(primaryKey));
    }
  }
  