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.api.services.persistence;
  
  import org.apache.ambari.server.api.resources.ResourceInstance;
  import org.apache.ambari.server.api.services.RequestBody;
  import org.apache.ambari.server.controller.spi.NoSuchParentResourceException;
  import org.apache.ambari.server.controller.spi.NoSuchResourceException;
  import org.apache.ambari.server.controller.spi.RequestStatus;
  import org.apache.ambari.server.controller.spi.ResourceAlreadyExistsException;
  import org.apache.ambari.server.controller.spi.SystemException;
  import org.apache.ambari.server.controller.spi.UnsupportedPropertyException;
  
  /**
   * Persistence manager which is responsible for persisting a resource state to the back end.
   * This includes create, update and delete operations.
   */
  public interface PersistenceManager {
  
    /**
     * Create resources.
     *
     * @param resource     associated resource representation
     * @param requestBody  body of the current request
     * @return a request status
     *
     * @throws UnsupportedPropertyException
     * @throws ResourceAlreadyExistsException
     * @throws NoSuchParentResourceException
     * @throws SystemException
     */
    RequestStatus create(ResourceInstance resource, RequestBody requestBody)
        throws UnsupportedPropertyException,
               ResourceAlreadyExistsException,
               NoSuchParentResourceException,
               SystemException;
  
    /**
     *
     * @param resource     associated resource representation
     * @param requestBody  body of the current request
     * @return a request status
     *
     * @throws UnsupportedPropertyException
     * @throws SystemException
     * @throws NoSuchParentResourceException
     * @throws NoSuchResourceException
     */
    RequestStatus update(ResourceInstance resource, RequestBody requestBody)
        throws UnsupportedPropertyException, SystemException, NoSuchParentResourceException, NoSuchResourceException;
  
    /**
     *
     * @param resource     associated resource representation
     * @param requestBody  body of the current request
     * @return a request status
     *
     * @throws UnsupportedPropertyException
     * @throws SystemException
     * @throws NoSuchParentResourceException
     * @throws NoSuchResourceException
     */
    RequestStatus delete(ResourceInstance resource, RequestBody requestBody)
        throws UnsupportedPropertyException, SystemException, NoSuchParentResourceException, NoSuchResourceException;
  }
  