@Override
public void save(String id, String filePath) throws PreferenceException
{
try{
XMLConfiguration preferences = (XMLConfiguration)configuration.getConfiguration(id);
preferences.save(new File(filePath));
// Es recarreguen les preferencies guardades amb les dades guardades
XMLConfiguration newPreferences = new XMLConfiguration(filePath);
configuration.removeConfiguration(id);
configuration.addConfiguration(newPreferences, id);