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1 /*******************************************************************************\r
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
3  * in Industry THTH ry.\r
4  * All rights reserved. This program and the accompanying materials\r
5  * are made available under the terms of the Eclipse Public License v1.0\r
6  * which accompanies this distribution, and is available at\r
7  * http://www.eclipse.org/legal/epl-v10.html\r
8  *\r
9  * Contributors:\r
10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
11  *******************************************************************************/\r
12 \r
13 package org.simantics.utils.threads.ua;\r
14 \r
15 import java.util.concurrent.Executor;\r
16 \r
17 /**\r
18  *\r
19  * \r
20  * @author Toni Kalajainen (toni.kalajainen@vtt.fi)\r
21  */\r
22 public interface StatefulExecutor extends IStatefulObject<ExecutorState, RuntimeException>, Executor {\r
23 \r
24         /**\r
25          * Change the status of the executor. \r
26          * <p>\r
27          * To close the executor set the state to <tt>WorkerState.Shutdown</tt>.\r
28          * When all work has been executed and all threads are shut down, \r
29          * the executor will shift to WorkerState.Terminated state.\r
30          * <p>\r
31          * Once worker is terminated it cannot be re-activated.\r
32          *  \r
33          * @param newStatus \r
34          */\r
35         boolean setState(ExecutorState newStatus);      \r
36         \r
37 }\r