1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package ch.qos.logback.core.util;
15  
16  /**
17   * A strategy for computing a delay.
18   *
19   * @author Carl Harris
20   * @since 1.1.0
21   */
22  public interface DelayStrategy {
23      /**
24       * The value computed by this {@code DelayStrategy} for the next delay.
25       * 
26       * @return a delay value
27       */
28      long nextDelay();
29  }