AccumuloIndexDefinition createIndexDefinition(JobConf job, String tname, String iname) {
      AccumuloIndexDefinition def = new AccumuloIndexDefinition(tname, iname);
      String cols = AccumuloIndexedOutputFormat.getIndexColumns(job);
      LOG.info("Index Cols = {}", cols);
      def.setColumnTuples(cols);
      return def;
    }
Extension of AccumuloOutputFormat to support indexing.
accumulo-handler/src/java/org/apache/hadoop/hive/accumulo/mr/AccumuloIndexedOutputFormat.java