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;
  
  
  import org.apache.ambari.server.api.util.TreeNode;
  import org.apache.ambari.server.controller.spi.Resource;
  
  /**
   * Represents a result from a request handler invocation.
   */
  public interface Result {
  
    /**
     * Obtain the results of the request invocation as a Tree structure.
     *
     * @return the results of the request as a Tree structure
     */
    TreeNode<Resource> getResultTree();
  
    /**
     * Determine whether the request was handled synchronously.
     * If the request is synchronous, all work was completed prior to returning.
     *
     * @return true if the request was synchronous, false if it was asynchronous
     */
    boolean isSynchronous();
  
    ResultStatus getStatus();
  
    void setResultStatus(ResultStatus status);
  
    void setResultMetadata(ResultMetadata resultMetadata);
  
    ResultMetadata getResultMetadata();
  }
  