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1 /*******************************************************************************
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2 * Copyright (c) 2006, 2008 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 * Brad Reynolds - bug 164653
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11 * Matthew Hall - bug 118516
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12 *******************************************************************************/
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13
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14 module org.eclipse.core.databinding.observable.AbstractObservable;
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15
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16 import java.lang.all;
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17
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18 import org.eclipse.core.runtime.Assert;
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19 import org.eclipse.core.runtime.AssertionFailedException;
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20
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21 /**
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22 * @since 1.0
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23 */
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24 public abstract class AbstractObservable : ChangeManager , IObservable {
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25
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26 /**
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27 * @param realm
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28 */
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29 public this(Realm realm) {
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30 super(realm);
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31 }
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32
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33 public synchronized void addChangeListener(IChangeListener listener) {
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34 addListener(ChangeEvent.TYPE, listener);
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35 }
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36
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37 public synchronized void removeChangeListener(IChangeListener listener) {
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38 removeListener(ChangeEvent.TYPE, listener);
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39 }
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40
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41 public synchronized void addStaleListener(IStaleListener listener) {
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42 addListener(StaleEvent.TYPE, listener);
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43 }
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44
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45 public synchronized void removeStaleListener(IStaleListener listener) {
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46 removeListener(StaleEvent.TYPE, listener);
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47 }
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48
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49 protected void fireChange() {
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50 checkRealm();
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51 fireEvent(new ChangeEvent(this));
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52 }
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53
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54 protected void fireStale() {
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55 checkRealm();
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56 fireEvent(new StaleEvent(this));
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57 }
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58
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59 /**
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60 *
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61 */
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62 public synchronized void dispose() {
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63 super.dispose();
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64 }
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65
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66 /**
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67 * Asserts that the realm is the current realm.
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68 *
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69 * @see Realm#isCurrent()
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70 * @throws AssertionFailedException if the realm is not the current realm
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71 */
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72 protected void checkRealm() {
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73 Assert.isTrue(getRealm().isCurrent(),
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74 "This operation must be run within the observable's realm"); //$NON-NLS-1$
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75 }
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76 }
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