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
   *
   *     https://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.avro.ipc;
  
  /**
   * Interface for receiving asynchronous callbacks. For each request with an
   * asynchronous callback, either {@link #handleResult(Object)} or
   * {@link #handleError(Throwable)} will be invoked.
   */
  public interface Callback<T> {
    /**
     * Receives a callback result.
     * 
     * @param result the result returned in the callback.
     */
    void handleResult(T result);
  
    /**
     * Receives an error.
     * 
     * @param error the error returned in the callback.
     */
    void handleError(Throwable error);
  }
  