Entry.java 文件源码

/**
 * Returns an observable map of properties on this entry for use primarily
 * by application developers.
 *
 * @return an observable map of properties on this entry for use primarily
 * by application developers
 */
public final ObservableMap<Object, Object> getProperties() {
    if (properties == null) {
        properties = FXCollections.observableMap(new HashMap<>());

        MapChangeListener<? super Object, ? super Object> changeListener = change -> {
            if (change.getKey().equals("com.calendarfx.recurrence.source")) { //$NON-NLS-1$
                if (change.getValueAdded() != null) {
                    @SuppressWarnings("unchecked")
                    Entry<T> source = (Entry<T>) change.getValueAdded();

                    // lookup of property first to instantiate
                    recurrenceSourceProperty();
                    recurrenceSource.set(source);
                }
            } else if (change.getKey().equals("com.calendarfx.recurrence.id")) { //$NON-NLS-1$
                if (change.getValueAdded() != null) {
                    setRecurrenceId((String) change.getValueAdded());
                }
            }
        };

        properties.addListener(changeListener);
    }

    return properties;
}