annotate org.eclipse.core.jobs/src/org/eclipse/core/runtime/jobs/IJobChangeListener.d @ 12:bc29606a740c

Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
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1 /*******************************************************************************
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2 * Copyright (c) 2003, 2006 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.core.runtime.jobs.IJobChangeListener;
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14
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15 import java.lang.all;
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16 import java.util.Set;
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17 import org.eclipse.core.runtime.jobs.IJobChangeEvent;
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18
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19 /**
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20 * Callback interface for clients interested in being notified when jobs change state.
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21 * <p>
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22 * A single job listener instance can be added either to the job manager, for notification
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23 * of all scheduled jobs, or to any set of individual jobs. A single listener instance should
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24 * not be added to both the job manager, and to individual jobs (such a listener may
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25 * receive duplicate notifications).
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26 * </p><p>
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27 * Clients should not rely on the result of the <code>Job#getState()</code>
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28 * method on jobs for which notification is occurring. Listeners are notified of
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29 * all job state changes, but whether the state change occurs before, during, or
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30 * after listeners are notified is unspecified.
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31 * </p><p>
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32 * Clients may implement this interface.
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33 * </p>
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34 * @see JobChangeAdapter
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35 * @see IJobManager#addJobChangeListener(IJobChangeListener)
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36 * @see IJobManager#removeJobChangeListener(IJobChangeListener)
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37 * @see Job#addJobChangeListener(IJobChangeListener)
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38 * @see Job#getState()
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39 * @see Job#removeJobChangeListener(IJobChangeListener)
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40 * @since 3.0
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41 */
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42 public interface IJobChangeListener {
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43 /**
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44 * Notification that a job is about to be run. Listeners are allowed to sleep, cancel,
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45 * or change the priority of the job before it is started (and as a result may prevent
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46 * the run from actually occurring).
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47 *
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48 * @param event the event details
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49 */
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50 public void aboutToRun(IJobChangeEvent event);
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51
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52 /**
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53 * Notification that a job was previously sleeping and has now been rescheduled
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54 * to run.
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55 *
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56 * @param event the event details
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57 */
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58 public void awake(IJobChangeEvent event);
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59
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60 /**
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61 * Notification that a job has completed execution, either due to cancelation, successful
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62 * completion, or failure. The event status object indicates how the job finished,
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63 * and the reason for failure, if applicable.
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64 *
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65 * @param event the event details
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66 */
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67 public void done(IJobChangeEvent event);
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68
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69 /**
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70 * Notification that a job has started running.
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71 *
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72 * @param event the event details
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73 */
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74 public void running(IJobChangeEvent event);
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75
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76 /**
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77 * Notification that a job is being added to the queue of scheduled jobs.
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78 * The event details includes the scheduling delay before the job should start
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79 * running.
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80 *
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81 * @param event the event details, including the job instance and the scheduling
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82 * delay
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83 */
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84 public void scheduled(IJobChangeEvent event);
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85
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86 /**
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87 * Notification that a job was waiting to run and has now been put in the
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88 * sleeping state.
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89 *
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90 * @param event the event details
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91 */
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92 public void sleeping(IJobChangeEvent event);
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93 }