Package org.apache.hadoop.hbase.filter

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

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  private InternalScanner buildScanner(String keyPrefix, String value, HRegion r)
  throws IOException {
    // Defaults FilterList.Operator.MUST_PASS_ALL.
    FilterList allFilters = new FilterList();
    allFilters.addFilter(new PrefixFilter(Bytes.toBytes(keyPrefix)));
    // Only return rows where this column value exists in the row.
    SingleColumnValueFilter filter =
      new SingleColumnValueFilter(Bytes.toBytes("trans-tags"),
        Bytes.toBytes("qual2"), CompareOp.EQUAL, Bytes.toBytes(value));
    filter.setFilterIfMissing(true);
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        "-D" + Import.FILTER_ARGS_CONF_KEY + "=" + Bytes.toString(ROW1), IMPORT_TABLE, FQ_OUTPUT_DIR,
        "1000" };
    assertTrue(runImport(args));

    // get the count of the source table for that time range
    PrefixFilter filter = new PrefixFilter(ROW1);
    int count = getCount(exportTable, filter);

    Assert.assertEquals("Unexpected row count between export and import tables", count,
      getCount(importTable, null));
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  public void testFilters() throws IOException {
    try {
      this.r = createNewHRegion(TESTTABLEDESC, null, null);
      addContent(this.r, HConstants.CATALOG_FAMILY);
      byte [] prefix = Bytes.toBytes("ab");
      Filter newFilter = new PrefixFilter(prefix);
      Scan scan = new Scan();
      scan.setFilter(newFilter);
      rowPrefixFilter(scan);

      byte[] stopRow = Bytes.toBytes("bbc");
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  private ResultScanner buildScanner(String keyPrefix, String value, HTable ht)
      throws IOException {
    // OurFilterList allFilters = new OurFilterList();
    FilterList allFilters = new FilterList(/* FilterList.Operator.MUST_PASS_ALL */);
    allFilters.addFilter(new PrefixFilter(Bytes.toBytes(keyPrefix)));
    SingleColumnValueFilter filter = new SingleColumnValueFilter(Bytes
        .toBytes("trans-tags"), Bytes.toBytes("qual2"), CompareOp.EQUAL, Bytes
        .toBytes(value));
    filter.setFilterIfMissing(true);
    allFilters.addFilter(filter);
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      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));
            if(famQf.length == 1) {
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      // Test filters are serialized properly.
      scan = new Scan(startRow);
      final String name = "testScan";
      byte [] prefix = Bytes.toBytes(name);
      scan.setFilter(new PrefixFilter(prefix));
      scanProto = ProtobufUtil.toScan(scan);
      desScan = ProtobufUtil.toScan(scanProto);
      Filter f = desScan.getFilter();
      assertTrue(f instanceof PrefixFilter);
    }
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  private InternalScanner buildScanner(String keyPrefix, String value, HRegion r)
  throws IOException {
    // Defaults FilterList.Operator.MUST_PASS_ALL.
    FilterList allFilters = new FilterList();
    allFilters.addFilter(new PrefixFilter(Bytes.toBytes(keyPrefix)));
    // Only return rows where this column value exists in the row.
    SingleColumnValueFilter filter =
      new SingleColumnValueFilter(Bytes.toBytes("trans-tags"),
        Bytes.toBytes("qual2"), CompareOp.EQUAL, Bytes.toBytes(value));
    filter.setFilterIfMissing(true);
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    public int scannerOpenWithPrefix(byte[] tableName, byte[] startAndPrefix, List<byte[]> columns) throws IOError, TException {
      try {
        HTable table = getTable(tableName);
        Scan scan = new Scan(startAndPrefix);
        Filter f = new WhileMatchFilter(
            new PrefixFilter(startAndPrefix));
        scan.setFilter(f);
        if(columns != null && columns.size() != 0) {
          for(byte [] column : columns) {
            byte [][] famQf = KeyValue.parseColumn(column);
            if(famQf.length == 1) {
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      }

      // Test filters are serialized properly.
      scan = new Scan(startRow);
      byte [] prefix = Bytes.toBytes(getName());
      scan.setFilter(new PrefixFilter(prefix));
      sb = Writables.getBytes(scan);
      desScan = (Scan)Writables.getWritable(sb, new Scan());
      Filter f = desScan.getFilter();
      assertTrue(f instanceof PrefixFilter);
    }
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  private InternalScanner buildScanner(String keyPrefix, String value, HRegion r)
  throws IOException {
    // Defaults FilterList.Operator.MUST_PASS_ALL.
    FilterList allFilters = new FilterList();
    allFilters.addFilter(new PrefixFilter(Bytes.toBytes(keyPrefix)));
    // Only return rows where this column value exists in the row.
    SingleColumnValueFilter filter =
      new SingleColumnValueFilter(Bytes.toBytes("trans-tags"),
        Bytes.toBytes("qual2"), CompareOp.EQUAL, Bytes.toBytes(value));
    filter.setFilterIfMissing(true);
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