01 /*
02 * Copyright 2009-2012 the original author or authors.
03 *
04 * Licensed under the Apache License, Version 2.0 (the "License");
05 * you may not use this file except in compliance with the License.
06 * You may obtain a copy of the License at
07 *
08 * http://www.apache.org/licenses/LICENSE-2.0
09 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.codehaus.griffon.runtime.core;
17
18 import griffon.core.Observable;
19
20 import java.beans.PropertyChangeEvent;
21 import java.beans.PropertyChangeListener;
22 import java.beans.PropertyChangeSupport;
23
24 /**
25 * @author Andres Almiray
26 * @since 0.9.1
27 */
28 public abstract class AbstractObservable implements Observable {
29 protected PropertyChangeSupport pcs;
30
31 public AbstractObservable() {
32 pcs = new PropertyChangeSupport(this);
33 }
34
35 public void addPropertyChangeListener(PropertyChangeListener listener) {
36 pcs.addPropertyChangeListener(listener);
37 }
38
39 public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener) {
40 pcs.addPropertyChangeListener(propertyName, listener);
41 }
42
43 public void removePropertyChangeListener(PropertyChangeListener listener) {
44 pcs.removePropertyChangeListener(listener);
45 }
46
47 public void removePropertyChangeListener(String propertyName, PropertyChangeListener listener) {
48 pcs.removePropertyChangeListener(propertyName, listener);
49 }
50
51 public PropertyChangeListener[] getPropertyChangeListeners() {
52 return pcs.getPropertyChangeListeners();
53 }
54
55 public PropertyChangeListener[] getPropertyChangeListeners(String propertyName) {
56 return pcs.getPropertyChangeListeners(propertyName);
57 }
58
59 protected void firePropertyChange(PropertyChangeEvent event) {
60 pcs.firePropertyChange(event);
61 }
62
63 protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {
64 pcs.firePropertyChange(propertyName, oldValue, newValue);
65 }
66 }
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