protected Scan constructScan(byte[] valuePrefix) {
      Filter filter = new SingleColumnValueFilter(FAMILY_NAME, QUALIFIER_NAME,
        CompareOperator.EQUAL, new BinaryComparator(valuePrefix));
      Scan scan = new Scan();
      scan.addColumn(FAMILY_NAME, QUALIFIER_NAME);
      scan.setFilter(filter);
      return scan;
    }
Test for individual row.
@param i Row index.
hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/PerformanceEvaluation.java