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.TypedQuery;
  
  import org.apache.ambari.server.orm.RequiresSession;
  import org.apache.ambari.server.orm.entities.TopologyHostGroupEntity;
  
  import com.google.inject.Inject;
  import com.google.inject.Provider;
  import com.google.inject.Singleton;
  import com.google.inject.persist.Transactional;
  
  @Singleton
  public class TopologyHostGroupDAO {
    @Inject
    Provider<EntityManager> entityManagerProvider;
  
    @Inject
    DaoUtils daoUtils;
  
    @RequiresSession
    public TopologyHostGroupEntity findById(Long id) {
      return entityManagerProvider.get().find(TopologyHostGroupEntity.class, id);
    }
  
    @RequiresSession
    public TopologyHostGroupEntity findByRequestIdAndName(long topologyRequestId, String name) {
      TypedQuery<TopologyHostGroupEntity> query = entityManagerProvider.get().createNamedQuery(
          "TopologyHostGroupEntity.findByRequestIdAndName", TopologyHostGroupEntity.class);
  
      query.setParameter("requestId", topologyRequestId);
      query.setParameter("name", name);
  
      return query.getSingleResult();
    }
  
    @RequiresSession
    public List<TopologyHostGroupEntity> findAll() {
      return daoUtils.selectAll(entityManagerProvider.get(), TopologyHostGroupEntity.class);
    }
  
    @Transactional
    public void create(TopologyHostGroupEntity hostGroupEntity) {
      entityManagerProvider.get().persist(hostGroupEntity);
    }
  
    @Transactional
    public TopologyHostGroupEntity merge(TopologyHostGroupEntity hostGroupEntity) {
      return entityManagerProvider.get().merge(hostGroupEntity);
    }
  
    @Transactional
    public void remove(TopologyHostGroupEntity hostGroupEntity) {
      entityManagerProvider.get().remove(hostGroupEntity);
    }
  }
  