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
   * <p/>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p/>
   * 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.inject.Inject;
  import jakarta.inject.Provider;
  import jakarta.inject.Singleton;
  import jakarta.persistence.EntityManager;
  import jakarta.persistence.TypedQuery;
  
  import org.apache.ambari.server.orm.RequiresSession;
  import org.apache.ambari.server.orm.entities.KerberosDescriptorEntity;
  
  import com.google.inject.persist.Transactional;
  
  @Singleton
  public class KerberosDescriptorDAO {
  
    @Inject
    private Provider<EntityManager> entityManagerProvider;
  
    @RequiresSession
    public KerberosDescriptorEntity findByName(String kerberosDescriptorName) {
      return entityManagerProvider.get().find(KerberosDescriptorEntity.class, kerberosDescriptorName);
    }
  
    /**
     * Find all kerberos descriptors.
     *
     * @return all kerberos descriptors or an empty List
     */
    @RequiresSession
    public List<KerberosDescriptorEntity> findAll() {
      TypedQuery<KerberosDescriptorEntity> query = entityManagerProvider.get().
              createNamedQuery("allKerberosDescriptors", KerberosDescriptorEntity.class);
      return query.getResultList();
    }
  
    @Transactional
    public void create(KerberosDescriptorEntity kerberosDescriptorEntity) {
      entityManagerProvider.get().persist(kerberosDescriptorEntity);
    }
  
  
    /**
     * Refresh the state of the instance from the database,
     * overwriting changes made to the entity, if any.
     *
     * @param kerberosDescriptorEntity entity to refresh
     */
    @Transactional
    public void refresh(KerberosDescriptorEntity kerberosDescriptorEntity) {
      entityManagerProvider.get().refresh(kerberosDescriptorEntity);
    }
  
    /**
     * Merge the state of the given entity into the current persistence context.
     *
     * @param kerberosDescriptorEntity entity to merge
     * @return the merged entity
     */
    @Transactional
    public KerberosDescriptorEntity merge(KerberosDescriptorEntity kerberosDescriptorEntity) {
      return entityManagerProvider.get().merge(kerberosDescriptorEntity);
    }
  
    /**
     * Remove the entity instance.
     *
     * @param kerberosDescriptorEntity entity to remove
     */
    @Transactional
    public void remove(KerberosDescriptorEntity kerberosDescriptorEntity) {
      entityManagerProvider.get().remove(merge(kerberosDescriptorEntity));
    }
  
    /**
     * Remove entity instance by primary key
     *
     * @param name Primary key: kerberos descriptor name
     */
    @Transactional
    public void removeByName(String name) {
      entityManagerProvider.get().remove(findByName(name));
    }
  
  
  }
  