Mercurial > projects > dwt2
annotate org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/value/IObservableValue.d @ 97:c86eb8b3098e
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author | Frank Benoit <benoit@tionex.de> |
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date | Tue, 21 Apr 2009 11:18:25 +0200 |
parents | b74ac5dfcc06 |
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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 *******************************************************************************/ |
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11 |
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12 module org.eclipse.core.databinding.observable.value.IObservableValue; |
97 | 13 import org.eclipse.core.databinding.observable.value.IValueChangeListener; |
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14 |
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15 import java.lang.all; |
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16 |
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17 import org.eclipse.core.databinding.observable.IObservable; |
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18 import org.eclipse.core.databinding.observable.Realm; |
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19 |
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20 /** |
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21 * A value whose changes can be tracked by value change listeners. |
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22 * |
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23 * @noextend This interface is not intended to be extended by clients. |
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24 * @noimplement This interface is not intended to be implemented by clients. |
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25 * Clients should instead subclass one of the classes that |
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26 * implement this interface. Note that direct implementers of this |
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27 * interface outside of the framework will be broken in future |
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28 * releases when methods are added to this interface. |
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29 * |
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30 * @see AbstractObservableValue |
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31 * |
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32 * @since 1.0 |
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33 */ |
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34 public interface IObservableValue : IObservable { |
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35 |
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36 /** |
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37 * The value type of this observable value, or <code>null</code> if this |
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38 * observable value is untyped. |
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39 * |
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40 * @return the value type, or <code>null</null> |
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41 */ |
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42 public Object getValueType(); |
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43 |
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44 /** |
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45 * Returns the value. Must be invoked in the {@link Realm} of the observable. |
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46 * |
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47 * @return the current value |
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48 * @TrackedGetter |
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49 */ |
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50 public Object getValue(); |
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51 |
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52 /** |
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53 * Sets the value. Must be invoked in the {@link Realm} of the observable. |
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54 * |
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55 * @param value |
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56 * the value to set |
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57 * @throws UnsupportedOperationException |
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58 * if this observable value cannot be set. |
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59 */ |
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60 public void setValue(Object value); |
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61 |
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62 /** |
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63 * |
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64 * @param listener |
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65 */ |
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66 public void addValueChangeListener(IValueChangeListener listener); |
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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 removeValueChangeListener(IValueChangeListener listener); |
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72 } |