/**
 * 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.activemq.transport.amqp.client.util;

/**
 * Defines a result interface for Asynchronous operations.
 */
public interface AsyncResult {

   /**
    * If the operation fails this method is invoked with the Exception
    * that caused the failure.
    *
    * @param result The error that resulted in this asynchronous operation failing.
    */
   void onFailure(Throwable result);

   /**
    * If the operation succeeds the resulting value produced is set to null and
    * the waiting parties are signaled.
    */
   void onSuccess();

   /**
    * Returns true if the AsyncResult has completed.  The task is considered complete
    * regardless if it succeeded or failed.
    *
    * @return returns true if the asynchronous operation has completed.
    */
   boolean isComplete();

}
