/*
    * Copyright 2013 The Netty Project
    *
    * The Netty Project 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 io.netty.util.concurrent;
  
  /**
   * A {@link Future} which is used to indicate the progress of an operation.
   */
  public interface ProgressiveFuture<V> extends Future<V> {
  
      @Override
      ProgressiveFuture<V> addListener(GenericFutureListener<? extends Future<? super V>> listener);
  
      @Override
      ProgressiveFuture<V> addListeners(GenericFutureListener<? extends Future<? super V>>... listeners);
  
      @Override
      ProgressiveFuture<V> removeListener(GenericFutureListener<? extends Future<? super V>> listener);
  
      @Override
      ProgressiveFuture<V> removeListeners(GenericFutureListener<? extends Future<? super V>>... listeners);
  
      @Override
      ProgressiveFuture<V> sync() throws InterruptedException;
  
      @Override
      ProgressiveFuture<V> syncUninterruptibly();
  
      @Override
      ProgressiveFuture<V> await() throws InterruptedException;
  
      @Override
      ProgressiveFuture<V> awaitUninterruptibly();
  }