Package org.apache.hadoop.hbase.filter

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

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      put.add(FAMILY, QUALIFIERS[i], VALUE);
      ht.put(put);
    }
    Scan scan = new Scan();
    scan.addFamily(FAMILY);
    Filter filter = new KeyOnlyFilter(true);
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int count = 0;
    for(Result result : ht.getScanner(scan)) {
      assertEquals(result.size(), 1);
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      put.add(FAMILY, QUALIFIERS[i], VALUE);
      ht.put(put);
    }
    Scan scan = new Scan();
    scan.addFamily(FAMILY);
    Filter filter = new KeyOnlyFilter(true);
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int count = 0;
    for(Result result : ht.getScanner(scan)) {
      assertEquals(result.size(), 1);
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      put.add(FAMILY, QUALIFIERS[i], VALUE);
      ht.put(put);
    }
    Scan scan = new Scan();
    scan.addFamily(FAMILY);
    Filter filter = new KeyOnlyFilter(true);
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int count = 0;
    for(Result result : ht.getScanner(scan)) {
      assertEquals(result.size(), 1);
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      put.add(FAMILY, QUALIFIERS[i], VALUE);
      ht.put(put);
    }
    Scan scan = new Scan();
    scan.addFamily(FAMILY);
    Filter filter = new KeyOnlyFilter(true);
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int count = 0;
    for(Result result : ht.getScanner(scan)) {
      assertEquals(result.size(), 1);
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      ResultScanner rs = null;
      try {
      Scan s = new Scan();
      s.setBatch(2);
      s.addFamily(FAMILY);
      s.setFilter(new KeyOnlyFilter());
      s.setMaxVersions(1);

      rs = table.getScanner(s);
      Result result = rs.next();
      return rs != null && result != null && result.size() > 0;
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        break;
      case InclusiveStopFilter:
        filter = new InclusiveStopFilter(Base64.decode(value));
        break;
      case KeyOnlyFilter:
        filter = new KeyOnlyFilter();
        break;
      case MultipleColumnPrefixFilter: {
        byte[][] values = new byte[prefixes.size()][];
        for (int i = 0; i < prefixes.size(); i++) {
          values[i] = Base64.decode(prefixes.get(i));
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      put.add(FAMILY, QUALIFIERS[i], VALUE);
      ht.put(put);
    }
    Scan scan = new Scan();
    scan.addFamily(FAMILY);
    Filter filter = new KeyOnlyFilter(true);
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int count = 0;
    for(Result result : ht.getScanner(scan)) {
      assertEquals(result.size(), 1);
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      ht.put(put);
    }
    Scan scan = new Scan();
    scan.setReversed(true);
    scan.addFamily(FAMILY);
    Filter filter = new KeyOnlyFilter(true);
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int count = 0;
    for (Result result : ht.getScanner(scan)) {
      assertEquals(result.size(), 1);
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   */
  private synchronized void refreshItemIDs() throws IOException {
    // Get the list of item ids
    HTableInterface table = pool.getTable(tableName);
    Scan scan = new Scan(new byte[]{0x69}, new byte[]{0x70});
    scan.setFilter(new FilterList(FilterList.Operator.MUST_PASS_ALL, new KeyOnlyFilter(), new FirstKeyOnlyFilter()));
    ResultScanner scanner = table.getScanner(scan);
    Collection<Long> ids = Lists.newLinkedList();
    for (Result result : scanner) {
      ids.add(bytesToUserOrItemID(result.getRow()));
    }
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   */
  private synchronized void refreshUserIDs() throws IOException {
    // Get the list of user ids
    HTableInterface table = pool.getTable(tableName);
    Scan scan = new Scan(new byte[]{0x75}, new byte[]{0x76});
    scan.setFilter(new FilterList(FilterList.Operator.MUST_PASS_ALL, new KeyOnlyFilter(), new FirstKeyOnlyFilter()));
    ResultScanner scanner = table.getScanner(scan);
    Collection<Long> ids = Lists.newLinkedList();
    for (Result result : scanner) {
      ids.add(bytesToUserOrItemID(result.getRow()));
    }
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