CollectionFieldHandler.java 文件源码

@Override
public void store(final PortletPreferences preferences, final String key, final Collection<E> values)
        throws ReadOnlyException {
    int index = 0;
    if (values != null) {
        for (final E element : values) {
            this.elementHandler.store(preferences, key + '.' + index, element);
            index++;
        }
    }
    preferences.setValue(key + ".length", String.valueOf(index));
}