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1 /*******************************************************************************
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2 * Copyright (c) 2006, 2007 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 *******************************************************************************/
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11
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12 module org.eclipse.core.databinding.observable.ChangeSupport;
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81
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13 import org.eclipse.core.databinding.observable.IChangeListener;
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14 import org.eclipse.core.databinding.observable.ChangeEvent;
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15 import org.eclipse.core.databinding.observable.Realm;
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16 import org.eclipse.core.databinding.observable.IStaleListener;
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17 import org.eclipse.core.databinding.observable.IObservablesListener;
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18 import org.eclipse.core.databinding.observable.ObservableEvent;
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19 import org.eclipse.core.databinding.observable.StaleEvent;
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20 import org.eclipse.core.databinding.observable.ChangeManager;
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78
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21
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22 import java.lang.all;
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23
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24 /**
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25 * @since 1.0
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26 *
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27 */
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28 public abstract class ChangeSupport : ChangeManager {
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29
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30 /**
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31 * @param realm
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32 */
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33 public this(Realm realm) {
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34 super(realm);
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35 }
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36
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37 public void addListener(Object listenerType,
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38 IObservablesListener listener) {
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39 super.addListener(listenerType, listener);
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40 }
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41
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42 public void removeListener(Object listenerType,
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43 IObservablesListener listener) {
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44 super.removeListener(listenerType, listener);
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45 }
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46
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47 public void fireEvent(ObservableEvent event) {
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48 super.fireEvent(event);
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49 }
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50
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51 /**
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52 *
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53 */
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54 protected abstract void firstListenerAdded();
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55
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56 /**
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57 *
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58 */
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59 protected abstract void lastListenerRemoved();
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60
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61 /**
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62 * @param listener
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63 */
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64 public void addChangeListener(IChangeListener listener) {
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65 addListener(ChangeEvent.TYPE, listener);
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66 }
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67
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68 /**
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69 * @param listener
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70 */
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71 public void removeChangeListener(IChangeListener listener) {
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72 removeListener(ChangeEvent.TYPE, listener);
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73 }
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74
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75 /**
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76 * @param listener
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77 */
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78 public void addStaleListener(IStaleListener listener) {
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79 addListener(StaleEvent.TYPE, listener);
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80 }
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81
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82 /**
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83 * @param listener
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84 */
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85 public void removeStaleListener(IStaleListener listener) {
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86 removeListener(StaleEvent.TYPE, listener);
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87 }
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88
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89 }
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