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annotate org.eclipse.core.databinding.beans/src/org/eclipse/core/internal/databinding/beans/BeanObservableValueDecorator.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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1 /*******************************************************************************
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2 * Copyright (c) 2007 Brad Reynolds 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 * Brad Reynolds - initial API and implementation
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10 * Matthew Hall - bug 245183
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11 ******************************************************************************/
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12
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13 package org.eclipse.core.internal.databinding.beans;
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14
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15 import java.beans.PropertyDescriptor;
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16
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17 import org.eclipse.core.databinding.beans.IBeanObservable;
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18 import org.eclipse.core.databinding.observable.IChangeListener;
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19 import org.eclipse.core.databinding.observable.IStaleListener;
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20 import org.eclipse.core.databinding.observable.Realm;
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21 import org.eclipse.core.databinding.observable.value.IObservableValue;
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22 import org.eclipse.core.databinding.observable.value.IValueChangeListener;
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23 import org.eclipse.core.internal.databinding.Util;
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24
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25 /**
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26 * {@link IBeanObservable} decorator for an {@link IObservableValue}.
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27 *
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28 * @since 3.3
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29 */
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30 public class BeanObservableValueDecorator : IObservableValue,
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31 IBeanObservable {
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32 private final IObservableValue delegate;
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33 private final PropertyDescriptor descriptor;
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34 private final IObservableValue observed;
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35
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36 /**
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37 * @param delegate
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38 * @param observed
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39 * @param descriptor
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40 */
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41 public this(IObservableValue delegate, IObservableValue observed,
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42 PropertyDescriptor descriptor) {
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43 this.delegate = delegate;
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44 this.observed = observed;
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45 this.descriptor = descriptor;
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46 }
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47
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48 public void addChangeListener(IChangeListener listener) {
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49 delegate.addChangeListener(listener);
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50 }
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51
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52 public void addStaleListener(IStaleListener listener) {
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53 delegate.addStaleListener(listener);
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54 }
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55
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56 public void addValueChangeListener(IValueChangeListener listener) {
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57 delegate.addValueChangeListener(listener);
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58 }
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59
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60 public void dispose() {
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61 delegate.dispose();
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62 }
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63
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64 public override equals_t opEquals(Object obj) {
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65 if (obj is this)
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66 return true;
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67 if (obj is null)
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68 return false;
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69 if (getClass() is obj.getClass()) {
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70 BeanObservableValueDecorator other = cast(BeanObservableValueDecorator) obj;
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71 return Util.equals(other.delegate, delegate);
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72 }
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73 return delegate.equals(obj);
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74 }
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75
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76 public Realm getRealm() {
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77 return delegate.getRealm();
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78 }
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79
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80 public Object getValue() {
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81 return delegate.getValue();
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82 }
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83
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84 public Object getValueType() {
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85 return delegate.getValueType();
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86 }
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87
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88 public override hash_t toHash() {
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89 return delegate.hashCode();
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90 }
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91
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92 public bool isStale() {
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93 return delegate.isStale();
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94 }
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95
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96 public void removeChangeListener(IChangeListener listener) {
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97 delegate.removeChangeListener(listener);
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98 }
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99
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100 public void removeStaleListener(IStaleListener listener) {
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101 delegate.removeStaleListener(listener);
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102 }
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103
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104 public void removeValueChangeListener(IValueChangeListener listener) {
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105 delegate.removeValueChangeListener(listener);
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106 }
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107
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108 public void setValue(Object value) {
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109 delegate.setValue(value);
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110 }
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111
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112 /*
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113 * (non-Javadoc)
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114 *
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115 * @see org.eclipse.core.databinding.beans.IBeanObservable#getObserved()
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116 */
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117 public Object getObserved() {
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118 return observed.getValue();
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119 }
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120
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121 /*
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122 * (non-Javadoc)
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123 *
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124 * @see org.eclipse.core.databinding.beans.IBeanObservable#getPropertyDescriptor()
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125 */
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126 public PropertyDescriptor getPropertyDescriptor() {
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127 return descriptor;
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128 }
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129
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130 /**
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131 * @return observable value delegate
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132 */
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133 public IObservableValue getDelegate() {
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134 return delegate;
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135 }
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136 }