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annotate org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/AbstractObservable.d @ 95:6208d4f6a277

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Added trees for databinding.beans and observable
author Frank Benoit <benoit@tionex.de>
date Tue, 21 Apr 2009 10:55:51 +0200
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children b74ac5dfcc06
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6208d4f6a277 Added trees for databinding.beans and observable
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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 package org.eclipse.core.databinding.observable;
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15
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16 import org.eclipse.core.runtime.Assert;
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17 import org.eclipse.core.runtime.AssertionFailedException;
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18
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19 /**
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20 * @since 1.0
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21 */
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22 public abstract class AbstractObservable : ChangeManager , IObservable {
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23
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24 /**
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25 * @param realm
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26 */
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27 public this(Realm realm) {
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28 super(realm);
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29 }
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30
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31 public synchronized void addChangeListener(IChangeListener listener) {
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32 addListener(ChangeEvent.TYPE, listener);
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33 }
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34
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35 public synchronized void removeChangeListener(IChangeListener listener) {
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36 removeListener(ChangeEvent.TYPE, listener);
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37 }
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38
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39 public synchronized void addStaleListener(IStaleListener listener) {
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40 addListener(StaleEvent.TYPE, listener);
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41 }
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42
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43 public synchronized void removeStaleListener(IStaleListener listener) {
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44 removeListener(StaleEvent.TYPE, listener);
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45 }
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46
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47 protected void fireChange() {
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48 checkRealm();
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49 fireEvent(new ChangeEvent(this));
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50 }
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51
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52 protected void fireStale() {
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53 checkRealm();
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54 fireEvent(new StaleEvent(this));
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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 */
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60 public synchronized void dispose() {
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61 super.dispose();
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62 }
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63
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64 /**
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65 * Asserts that the realm is the current realm.
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66 *
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67 * @see Realm#isCurrent()
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68 * @throws AssertionFailedException if the realm is not the current realm
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69 */
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70 protected void checkRealm() {
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71 Assert.isTrue(getRealm().isCurrent(),
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72 "This operation must be run within the observable's realm"); //$NON-NLS-1$
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73 }
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74 }