Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.shouldSeek()

Package org.apache.hadoop.hbase.io.hfile

Class org.apache.hadoop.hbase.io.hfile.HFileScanner

Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.shouldSeek()

org.apache.hadoop.hbase.io.hfile.HFileScanner.shouldSeek()
Optimization for single key lookups. If the file has a filter, perform a lookup on the key. @param row the row to scan @param family the column family to scan @param columns the array of column qualifiers to scan @return False if the key definitely does not exist in this ScanFile @throws IOException

    for (int i = 0; i < 2000; i++) {
      String row = String.format(localFormatter, Integer.valueOf(i));
      TreeSet<byte[]> columns = new TreeSet<byte[]>();
      columns.add("family:col".getBytes());
      
      boolean exists = scanner.shouldSeek(row.getBytes(), columns);
      if (i % 2 == 0) {
        if (!exists) falseNeg++;
      } else {
        if (exists) falsePos++;
      }

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          String row = String.format(localFormatter, Integer.valueOf(i));
          String col = String.format(localFormatter, Integer.valueOf(j)); 
          TreeSet<byte[]> columns = new TreeSet<byte[]>();
          columns.add(("col" + col).getBytes());


          boolean exists = scanner.shouldSeek(row.getBytes(), columns);
          boolean shouldRowExist = i % 2 == 0;
          boolean shouldColExist = j % 2 == 0;
          shouldColExist = shouldColExist || bt[x] == StoreFile.BloomType.ROW;
          if (shouldRowExist && shouldColExist) {
            if (!exists) falseNeg++;

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