Examples of org.apache.hadoop.hbase.client.Result.rawCells()

Class org.apache.hadoop.hbase.client.Result

Examples of org.apache.hadoop.hbase.client.Result.rawCells()

org.apache.hadoop.hbase.client.Result.rawCells()
Return the array of Cells backing this Result instance. The array is sorted from smallest -> largest using the {@link KeyValue#COMPARATOR}. The array only contains what your Get or Scan specifies and no more. For example if you request column "A" 1 version you will have at most 1 Cell in the array. If you request column "A" with 2 version you will have at most 2 Cells, with the first one being the newer timestamp and the second being the older timestamp (this is the sort order defined by {@link KeyValue#COMPARATOR}). If columns don't exist, they won't be present in the result. Therefore if you ask for 1 version all columns, it is safe to iterate over this array and expect to see 1 Cell for each column and no more. This API is faster than using getFamilyMap() and getMap() @return array of Cells; can be null if nothing in the result

    g = new Get(rowKey);
    r = region.get(g);
    if (r != null && r.size() > 0) {
      // create a put for new .META. entry with rowkey as hbase:meta
      Put p = new Put(TableName.META_TABLE_NAME.getName());
      for (Cell c : r.rawCells()) {
        p.addImmutable(CellUtil.cloneFamily(c), CellUtil.cloneQualifier(c), CellUtil.cloneValue(c));
      }
      region.put(p);
      // delete the old entry
      del = new Delete(rowKey);

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      Get get = new Get(row);
      for (byte[] family : families) {
        get.addColumn(family, qf);
      }
      Result result = newReg.get(get);
      Cell[] raw = result.rawCells();
      assertEquals(families.length, result.size());
      for (int j = 0; j < families.length; j++) {
        assertTrue(CellUtil.matchingRow(raw[j], row));
        assertTrue(CellUtil.matchingFamily(raw[j], families[j]));
        assertTrue(CellUtil.matchingQualifier(raw[j], qf));

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    Scan s = new Scan();
    s.setMaxVersions();
    s.setRaw(true);
    ResultScanner scanner = t.getScanner(s);
    Result r = scanner.next();
    Cell[] res = r.rawCells();
    assertTrue(CellUtil.isDeleteFamily(res[0]));
    assertEquals(now+4, res[1].getTimestamp());
    assertEquals(now+3, res[2].getTimestamp());
    assertTrue(CellUtil.isDelete(res[3]));
    assertEquals(now+2, res[4].getTimestamp());

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      table = new HTable(getConf(), tableName);
      Iterator<Result> resultsIt = table.getScanner(scan).iterator();
      Iterator<KeyValue> expectedIt = simple_expected.iterator();
      while (resultsIt.hasNext() && expectedIt.hasNext()) {
        Result r = resultsIt.next();
        for (Cell actual : r.rawCells()) {
          assertTrue(
            "Ran out of expected values prematurely!",
            expectedIt.hasNext());
          KeyValue expected = expectedIt.next();
          assertTrue(

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    Get get = new Get(row);
    get.addColumn(familiy, qualifier);
    Result result = region.get(get);
    assertEquals(1, result.size());


    Cell kv = result.rawCells()[0];
    byte[] r = CellUtil.cloneValue(kv);
    assertTrue(Bytes.compareTo(r, value) == 0);
  }


  private HRegion initHRegion(byte [] tableName, String callingMethod,

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    Scan s = new Scan();
    s.setMaxVersions();
    s.setRaw(true);
    ResultScanner scanner = t.getScanner(s);
    Result r = scanner.next();
    Cell[] res = r.rawCells();
    assertTrue(CellUtil.isDeleteFamily(res[0]));
    assertEquals(now+4, res[1].getTimestamp());
    assertEquals(now+3, res[2].getTimestamp());
    assertTrue(CellUtil.isDelete(res[3]));
    assertEquals(now+2, res[4].getTimestamp());

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    KeyValue[] keys = {
        new KeyValue(Bytes.toBytes("row"), Bytes.toBytes("family"), Bytes.toBytes("qualifier"),
            Bytes.toBytes("value")),
        new KeyValue(Bytes.toBytes("row"), Bytes.toBytes("family"), Bytes.toBytes("qualifier"),
            Bytes.toBytes("value1")) };
    when(value.rawCells()).thenReturn(keys);
    importer.map(new ImmutableBytesWritable(Bytes.toBytes("Key")), value, ctx);


  }


  /**

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    // verify the WAL was player into table 2
    Get g = new Get(ROW);
    Result r = t2.get(g);
    assertEquals(1, r.size());
    assertTrue(CellUtil.matchingQualifier(r.rawCells()[0], COLUMN2));
  }


  /**
   * Test HLogKeyValueMapper setup and map
   */

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    // verify the data was copied into table 2
    for (int i = 0; i < 10; i++) {
      Get g = new Get(Bytes.toBytes("row" + i));
      Result r = t2.get(g);
      assertEquals(1, r.size());
      assertTrue(CellUtil.matchingQualifier(r.rawCells()[0], COLUMN1));
    }
    
    t1.close();
    t2.close();
    TEST_UTIL.deleteTable(TABLENAME1);

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    // verify the data was copied into table 2
    // row1 exist, row0, row2 do not exist
    Get g = new Get(ROW1);
    Result r = t2.get(g);
    assertEquals(1, r.size());
    assertTrue(CellUtil.matchingQualifier(r.rawCells()[0], COLUMN1));


    g = new Get(ROW0);
    r = t2.get(g);
    assertEquals(0, r.size());

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