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1 /*******************************************************************************
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2 * Copyright (c) 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 * Boris Bokowski - initial API and implementation (bug 218269)
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10 * Matthew Hall - bug 218269
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11 ******************************************************************************/
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12
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13 module org.eclipse.core.databinding.ValidationStatusProvider;
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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.list.IObservableList;
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19 import org.eclipse.core.databinding.observable.value.IObservableValue;
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20
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21 /**
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22 * A validation status provider tracks the state of zero or more target
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23 * observables and zero or more model observables and produces a validation
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24 * result.
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25 *
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26 * @since 1.1
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27 *
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28 */
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29 public abstract class ValidationStatusProvider {
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30
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31 protected bool disposed = false;
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32
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33 /**
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34 * @return an observable value containing the current validation status
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35 */
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36 public abstract IObservableValue getValidationStatus();
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37
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38 /**
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39 * Returns the list of target observables (if any) that are being tracked by
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40 * this validation status provider.
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41 *
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42 * @return an observable list of target {@link IObservable}s (may be empty)
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43 */
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44 public abstract IObservableList getTargets();
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45
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46 /**
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47 * Returns the model observables (if any) that are being tracked by this
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48 * validation status provider.
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49 *
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50 * @return an observable list of model {@link IObservable}s (may be empty)
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51 */
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52 public abstract IObservableList getModels();
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53
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54 /**
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55 * Disposes of this ValidationStatusProvider. Subclasses may extend, but
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56 * must call super.dispose().
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57 */
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58 public void dispose() {
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59 disposed = true;
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60 }
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61
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62 /**
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63 * @return true if the binding has been disposed. false otherwise.
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64 */
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65 public bool isDisposed() {
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66 return disposed;
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67 }
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68 }
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