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import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
public class MyBean {
PropertyChangeSupport pceListeners = new PropertyChangeSupport(this);
int myProperty;
public int getMyProperty() {
return myProperty;
}
public void setMyProperty(int newValue) {
int oldValue = myProperty;
myProperty = newValue;
pceListeners.firePropertyChange("myProperty", new Integer(oldValue),
new Integer(newValue));
}
public synchronized void addPropertyChangeListener(
PropertyChangeListener listener) {
pceListeners.addPropertyChangeListener(listener);
}
public synchronized void removePropertyChangeListener(
PropertyChangeListener listener) {
pceListeners.removePropertyChangeListener(listener);
}
}
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