1 /*
2 * Copyright 2012 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.util.concurrent;
17
18 /**
19 * The {@link CompleteFuture} which is succeeded already. It is
20 * recommended to use {@link EventExecutor#newSucceededFuture(Object)} instead of
21 * calling the constructor of this future.
22 */
23 public final class SucceededFuture<V> extends CompleteFuture<V> {
24 private final V result;
25
26 /**
27 * Creates a new instance.
28 *
29 * @param executor the {@link EventExecutor} associated with this future
30 */
31 public SucceededFuture(EventExecutor executor, V result) {
32 super(executor);
33 this.result = result;
34 }
35
36 @Override
37 public Throwable cause() {
38 return null;
39 }
40
41 @Override
42 public boolean isSuccess() {
43 return true;
44 }
45
46 @Override
47 public V getNow() {
48 return result;
49 }
50 }