ThreadManager


1   /*
2   * Licensed to the Apache Software Foundation (ASF) under one or more
3   *  contributor license agreements.  The ASF licenses this file to You
4   * under the Apache License, Version 2.0 (the "License"); you may not
5   * use this file except in compliance with the License.
6   * 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,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.  For additional information regarding
15  * copyright in this work, please see the NOTICE file in the top level
16  * directory of this distribution.
17  */
18  package org.apache.roller.model;
19  
20  import java.util.TimerTask  ;
21  import java.sql.Date  ;
22  
23  /**
24   * Thread management for executing scheduled and asynchronous tasks.
25   */
26  public interface ThreadManager
27  {
28      public static final long MIN_RATE_INTERVAL_MINS = 1;
29  
30      /**
31       * Execute runnable in background (asynchronously).
32       * @param runnable 
33       * @throws java.lang.InterruptedException 
34       */
35      public void executeInBackground(Runnable   runnable)
36              throws InterruptedException  ;
37  
38      /**
39       * Execute runnable in foreground (synchronously).
40       */
41      public void executeInForeground(Runnable   runnable)
42              throws InterruptedException  ;
43  
44      /**
45       * Schedule task to run once a day.
46       */
47      public void scheduleDailyTimerTask(TimerTask   task);
48  
49      /**
50       * Schedule task to run once per hour.
51       */
52      public void scheduleHourlyTimerTask(TimerTask   task);
53  
54      /**
55       * Schedule task to run at fixed rate.
56       */
57      public void scheduleFixedRateTimerTask(TimerTask   task, long delayMins, long periodMins);
58  
59      /**
60       * Shutdown
61       */
62      public void shutdown();
63  
64      /**
65       * Release all resources associated with Roller session.
66       */
67      public void release();
68  }
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