code: @Override
  	public void setConfig(JawrConfig config) {
  		super.setConfig(config);
  		String value = this.config.getProperty(JawrConstant.SASS_GENERATOR_URL_MODE, SASS_GENERATOR_DEFAULT_URL_MODE);
  		urlMode = UrlMode.valueOf(value.toUpperCase());
  	}
docs: /*
  (non-Javadoc)
  
  @see
  net.jawr.web.resource.bundle.generator.AbstractCachedGenerator#setConfig(
  net.jawr.web.config.JawrConfig)