code: public static void setInputRecordMatcher(Job job, Class<? extends CobolTypeFinder> matcherClass) {
        job.getConfiguration().setClass(CONF_INPUT_RECORD_MATCHER_CLASS, matcherClass, CobolTypeFinder.class);
      }
docs: Sets the job input record matcher class.
  
  @param job The job to configure.
  @param matcherClass The input record matcher class.