/** @param config */
  @Override
  public void saveProperties() {

    AppConfig.getInstance().setProperty("db.engine", comboValue(jcboDBDriver.getSelectedItem()));
    AppConfig.getInstance().setProperty("db.driverlib", jtxtDbDriverLib.getText());
    AppConfig.getInstance().setProperty("db.driver", jtxtDbDriver.getText());
    AppConfig.getInstance().setProperty("db.URL", jtxtDbURL.getText());
    AppConfig.getInstance().setProperty("db.user", jtxtDbUser.getText());
    AltEncrypter cypher = new AltEncrypter("cypherkey" + jtxtDbUser.getText());
    AppConfig.getInstance()
        .setProperty(
            "db.password", "crypt:" + cypher.encrypt(new String(jtxtDbPassword.getPassword())));

    dirty.setDirty(false);
  }
  /** @param config */
  @Override
  public void loadProperties() {

    jcboDBDriver.setSelectedItem(AppConfig.getInstance().getProperty("db.engine"));
    jtxtDbDriverLib.setText(AppConfig.getInstance().getProperty("db.driverlib"));
    jtxtDbDriver.setText(AppConfig.getInstance().getProperty("db.driver"));
    jtxtDbURL.setText(AppConfig.getInstance().getProperty("db.URL"));

    String sDBUser = AppConfig.getInstance().getProperty("db.user");
    String sDBPassword = AppConfig.getInstance().getProperty("db.password");
    if (sDBUser != null && sDBPassword != null && sDBPassword.startsWith("crypt:")) {
      // La clave esta encriptada.
      AltEncrypter cypher = new AltEncrypter("cypherkey" + sDBUser);
      sDBPassword = cypher.decrypt(sDBPassword.substring(6));
    }
    jtxtDbUser.setText(sDBUser);
    jtxtDbPassword.setText(sDBPassword);

    dirty.setDirty(false);
  }