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1   /*
2    * Copyright 2014 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.internal;
17  
18  import io.netty.util.concurrent.EventExecutor;
19  
20  /**
21   * {@link Runnable} which represent a one time task which may allow the {@link EventExecutor} to reduce the amount of
22   * produced garbage when queue it for execution.
23   *
24   * <strong>It is important this will not be reused. After submitted it is not allowed to get submitted again!</strong>
25   */
26  public abstract class OneTimeTask extends MpscLinkedQueueNode<Runnable> implements Runnable {
27  
28      @Override
29      public Runnable value() {
30          return this;
31      }
32  }