Examples of org.apache.hadoop.hbase.filter.WhileMatchFilter

org.apache.hadoop.hbase.filter.WhileMatchFilter
A wrapper filter that returns true from {@link #filterAllRemaining()} as soonas the wrapped filters {@link Filter#filterRowKey(byte[],int,int)}, {@link Filter#filterKeyValue(org.apache.hadoop.hbase.KeyValue)}, {@link org.apache.hadoop.hbase.filter.Filter#filterRow()} or{@link org.apache.hadoop.hbase.filter.Filter#filterAllRemaining()} methodsreturns true.

      } break;
      case ValueFilter: {
        filter = new ValueFilter(CompareOp.valueOf(op), comparator.build());
      } break;
      case WhileMatchFilter: {
        filter = new WhileMatchFilter(filters.get(0).build());
      } break;
      default:
        throw new RuntimeException("unhandled filter type: " + type);
      }
      return filter;

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    assertTrue(key != null && key.length > 0 &&
      Bytes.BYTES_COMPARATOR.compare(key, new byte [] {'a', 'a', 'a'}) >= 0);
    LOG.info("Key=" + Bytes.toString(key));
    Scan s = startRow == null? new Scan(): new Scan(startRow);
    Filter f = new RowFilter(op, new BinaryComparator(key));
    f = new WhileMatchFilter(f);
    s.setFilter(f);
    return s;
  }

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      Scan scan = new Scan();
      scan.setFilter(newFilter);
      rowPrefixFilter(scan);


      byte[] stopRow = Bytes.toBytes("bbc");
      newFilter = new WhileMatchFilter(new InclusiveStopFilter(stopRow));
      scan = new Scan();
      scan.setFilter(newFilter);
      rowInclusiveStopFilter(scan, stopRow);


    } finally {

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        throws IOError, TException {
      try {
        HTable table = getTable(tableName);
        Scan scan = new Scan(getBytes(startAndPrefix));
        addAttributes(scan, attributes);
        Filter f = new WhileMatchFilter(
            new PrefixFilter(getBytes(startAndPrefix)));
        scan.setFilter(f);
        if (columns != null && columns.size() != 0) {
          for(ByteBuffer column : columns) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));

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    assertTrue(key != null && key.length > 0 &&
      Bytes.BYTES_COMPARATOR.compare(key, new byte [] {'a', 'a', 'a'}) >= 0);
    LOG.info("Key=" + Bytes.toString(key));
    Scan s = startRow == null? new Scan(): new Scan(startRow);
    Filter f = new RowFilter(op, new BinaryComparator(key));
    f = new WhileMatchFilter(f);
    s.setFilter(f);
    return s;
  }

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      Scan scan = new Scan();
      scan.setFilter(newFilter);
      rowPrefixFilter(scan);


      byte[] stopRow = Bytes.toBytes("bbc");
      newFilter = new WhileMatchFilter(new InclusiveStopFilter(stopRow));
      scan = new Scan();
      scan.setFilter(newFilter);
      rowInclusiveStopFilter(scan, stopRow);


    } finally {

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        throws IOError, TException {
      try {
        HTable table = getTable(tableName);
        Scan scan = new Scan(getBytes(startAndPrefix));
        addAttributes(scan, attributes);
        Filter f = new WhileMatchFilter(
            new PrefixFilter(getBytes(startAndPrefix)));
        scan.setFilter(f);
        if (columns != null && columns.size() != 0) {
          for(ByteBuffer column : columns) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));

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    assertTrue(key != null && key.length > 0 &&
      Bytes.BYTES_COMPARATOR.compare(key, new byte [] {'a', 'a', 'a'}) >= 0);
    LOG.info("Key=" + Bytes.toString(key));
    Scan s = startRow == null? new Scan(): new Scan(startRow);
    Filter f = new RowFilter(op, new BinaryComparator(key));
    f = new WhileMatchFilter(f);
    s.setFilter(f);
    return s;
  }

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    // Add a WhileMatchFilter to make the scan terminate as soon
    // as we see a non-matching key.  This is probably redundant
    // since the stopRow above should already take care of it for us.
    scan.setFilter(
      new WhileMatchFilter(
        new RowFilter(
          CompareFilter.CompareOp.EQUAL,
          new BinaryComparator(startRow))));
    return tableSplit;
  }

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        break;
      case ValueFilter:
        filter = new ValueFilter(CompareOp.valueOf(op), comparator.build());
        break;
      case WhileMatchFilter:
        filter = new WhileMatchFilter(filters.get(0).build());
        break;
      default:
        throw new RuntimeException("unhandled filter type: " + type);
      }
      return filter;

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