Examples of java.beans.PropertyChangeEvent

java.beans.PropertyChangeEvent
A "PropertyChange" event gets delivered whenever a bean changes a "bound" or "constrained" property. A PropertyChangeEvent object is sent as an argument to the PropertyChangeListener and VetoableChangeListener methods.
Normally PropertyChangeEvents are accompanied by the name and the old and new value of the changed property. If the new value is a primitive type (such as int or boolean) it must be wrapped as the corresponding java.lang.* Object type (such as Integer or Boolean).
Null values may be provided for the old and the new values if their true values are not known.
An event source may send a null object as the name to indicate that an arbitrary set of if its properties have changed. In this case the old and new values should also be null.

                listeners.size());
        synchronized (listeners) {
            copy.addAll(listeners);
        }


        PropertyChangeEvent changeAllEvent = new PropertyChangeEvent(source,
                null, null, null);
        for (Iterator<PropertyChangeListener> listenersItr = copy.iterator(); listenersItr
                .hasNext();) {
            PropertyChangeListener listna = listenersItr.next();
            listna.propertyChange(changeAllEvent);

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            // TODO for the future we should deliver a messagebox when two different sorting modes have been applied to one field
            int iduplicate = JavaTools.getDuplicateFieldIndex(SortDescriptions);
            if (iduplicate != -1) {
                String sLocSortCriteriaisduplicate = JavaTools.replaceSubString(sSortCriteriaisduplicate, SortFieldNames[iduplicate][0], "<FIELDNAME>");
                CurUnoDialog.showMessageBox("WarningBox", VclWindowPeerAttribute.OK, sLocSortCriteriaisduplicate);
                CurUnoDialog.vetoableChange(new PropertyChangeEvent(CurUnoDialog, "Steps", new Integer(1), new Integer(2)));
                CurUnoDialog.setFocus("lstSort" + (iduplicate + 1));
                return new String[][] {
                };
            }
            else

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    }


    public void setLookAndFeel(LookAndFeelInfo lookAndFeelInfo) throws Exception {
        UIManager.setLookAndFeel(lookAndFeelInfo.getClassName());
        UIManager.getLookAndFeelDefaults().put("Slider.paintValue", false);
        PropertyChangeEvent changeEvent = new PropertyChangeEvent(UIManager.getLookAndFeelDefaults(), "Slider.paintValue", true, false);
        PropertyChangeListener[] propertyChangeListeners = UIManager.getLookAndFeel().getDefaults().getPropertyChangeListeners();
        for (PropertyChangeListener propertyChangeListener : propertyChangeListeners) {
            propertyChangeListener.propertyChange(changeEvent);
        }
        for (JCheckBoxMenuItem jCheckBoxMenuItem : menusLnF) {

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     * If there is no listener then this call is a no-op
     */
    public void raiseInternalPropertyChangeEvent(Object source, String propertyName, Object oldValue, Object newValue) {
        ObjectChangeListener listener = (ObjectChangeListener)((ChangeTracker)source)._persistence_getPropertyChangeListener();
        if (listener != null) {
            listener.internalPropertyChange(new PropertyChangeEvent(source, propertyName, oldValue, newValue));
        }
    }

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    public void setAttributeValueInObject(Object object, Object value) {
        if(isChangeTracking) {
            Object oldValue = getAttributeValueFromObject(object);
            PropertyChangeListener listener = ((ChangeTracker)object)._persistence_getPropertyChangeListener();
            if(listener != null) {
                listener.propertyChange(new PropertyChangeEvent(object, oxmAccessor.getAttributeName(), value, oldValue));
            }
        }
        if(isValueHolderProperty) {
            ValueHolderInterface vh = (ValueHolderInterface)ormAccessor.getAttributeValueFromObject(object);
            if(vh == null) {

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        }


        public Object put(Object key, Object value)
        {
            Object oldValue = super.put(key, value);
            PropertyChangeEvent event = new PropertyChangeEvent(source, propertyName, null, value);
            listener.propertyChange(event);
            return oldValue;
        }

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        }


        public Object remove(Object key)
        {
            Object value = super.remove(key);
            PropertyChangeEvent event = new PropertyChangeEvent(source, propertyName, value, null);
            listener.propertyChange(event);
            return value;
        }

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        }


        public Object put(Object key, Object value)
        {
            Object oldValue = super.put(key, value);
            PropertyChangeEvent event = new PropertyChangeEvent(source, propertyName, null, value);
            listener.propertyChange(event);
            return oldValue;
        }

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        }


        public Object remove(Object key)
        {
            Object value = super.remove(key);
            PropertyChangeEvent event = new PropertyChangeEvent(source, propertyName, value, null);
            listener.propertyChange(event);
            return value;
        }

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    harness.check(label.getHorizontalAlignment(), JLabel.LEADING);
    label.addPropertyChangeListener(this);
    label.setHorizontalAlignment(JLabel.RIGHT);
    harness.check(label.getHorizontalAlignment(), JLabel.RIGHT);
    harness.check(events.size(), 1);
    PropertyChangeEvent e0 = (PropertyChangeEvent) events.get(0);
    harness.check(e0.getSource(), label);
    harness.check(e0.getPropertyName(), "horizontalAlignment");
    harness.check(e0.getOldValue(), new Integer(JLabel.LEADING));
    harness.check(e0.getNewValue(), new Integer(JLabel.RIGHT));
    
    // try a bad value
    boolean pass = false;
    try
    {

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