code: public static Class<? extends FromCobolChoiceStrategy> getInputChoiceStrategy(Configuration conf) {
        return conf.getClass(CONF_INPUT_RECORD_CHOICE_STRATEGY_CLASS, null, FromCobolChoiceStrategy.class);
      }
docs: Gets the job input record choice strategy class.
  
  @param conf The job configuration.
  @return The job input record choice strategy class, or null if not set.