code: public static void setInputWhereClauses(Configuration conf, String clauses)
      {
          if (clauses == null || clauses.isEmpty())
              return;
          
          conf.set(INPUT_CQL_WHERE_CLAUSE_CONFIG, clauses);
      }
docs: Set the CQL user defined where clauses for the input of this job.
  
  @param conf Job configuration you are about to run
  @param clauses