Examples of org.apache.hadoop.hbase.client.Scan.addColumn()

Class org.apache.hadoop.hbase.client.Scan

Examples of org.apache.hadoop.hbase.client.Scan.addColumn()

org.apache.hadoop.hbase.client.Scan.addColumn()
Get the column from the specified family with the specified qualifier.
Overrides previous calls to addFamily for this family. @param family family name @param qualifier column qualifier @return this

   */
  @Test
  public void testMaxWithValidRange2() throws Throwable {
    AggregationClient aClient = new AggregationClient(conf);
    Scan scan = new Scan();
    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    scan.setStartRow(ROWS[5]);
    scan.setStopRow(ROWS[15]);
    final ColumnInterpreter<BigDecimal, BigDecimal> ci = new BigDecimalColumnInterpreter();
    BigDecimal max = aClient.max(TEST_TABLE, ci, scan);
    assertEquals(new BigDecimal("14.00"), max);

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    AggregationClient aClient = new AggregationClient(conf);
    final ColumnInterpreter<BigDecimal, BigDecimal> ci = new BigDecimalColumnInterpreter();
    Scan scan = new Scan();
    scan.setStartRow(ROWS[4]);
    scan.setStopRow(ROWS[2]);
    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    BigDecimal max = new BigDecimal(Long.MIN_VALUE);
    ;
    try {
      max = aClient.max(TEST_TABLE, ci, scan);
    } catch (Throwable e) {

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  @Test
  public void testMaxWithInvalidRange2() throws Throwable {
    BigDecimal max = new BigDecimal(Long.MIN_VALUE);
    Scan scan = new Scan();
    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    scan.setStartRow(ROWS[4]);
    scan.setStopRow(ROWS[4]);
    try {
      AggregationClient aClient = new AggregationClient(conf);
      final ColumnInterpreter<BigDecimal, BigDecimal> ci = new BigDecimalColumnInterpreter();

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  @Test
  public void testMaxWithFilter() throws Throwable {
    BigDecimal max = BigDecimal.ZERO;
    AggregationClient aClient = new AggregationClient(conf);
    Scan scan = new Scan();
    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    Filter f = new PrefixFilter(Bytes.toBytes("foo:bar"));
    scan.setFilter(f);
    final ColumnInterpreter<BigDecimal, BigDecimal> ci = new BigDecimalColumnInterpreter();
    max = aClient.max(TEST_TABLE, ci, scan);
    assertEquals(null, max);

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   */
  @Test
  public void testMinWithValidRange() throws Throwable {
    AggregationClient aClient = new AggregationClient(conf);
    Scan scan = new Scan();
    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    scan.setStartRow(HConstants.EMPTY_START_ROW);
    scan.setStopRow(HConstants.EMPTY_END_ROW);
    final ColumnInterpreter<BigDecimal, BigDecimal> ci = new BigDecimalColumnInterpreter();
    BigDecimal min = aClient.min(TEST_TABLE, ci, scan);
    assertEquals(new BigDecimal("0.00"), min);

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   */
  @Test
  public void testMinWithValidRange2() throws Throwable {
    AggregationClient aClient = new AggregationClient(conf);
    Scan scan = new Scan();
    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    scan.setStartRow(ROWS[5]);
    scan.setStopRow(ROWS[15]);
    final ColumnInterpreter<BigDecimal, BigDecimal> ci = new BigDecimalColumnInterpreter();
    BigDecimal min = aClient.min(TEST_TABLE, ci, scan);
    assertEquals(new BigDecimal("5.00"), min);

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          for(ByteBuffer column : tScan.getColumns()) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));
            if(famQf.length == 1) {
              scan.addFamily(famQf[0]);
            } else {
              scan.addColumn(famQf[0], famQf[1]);
            }
          }
        }
        if (tScan.isSetFilterString()) {
          ParseFilter parseFilter = new ParseFilter();

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          for(ByteBuffer column : columns) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));
            if(famQf.length == 1) {
              scan.addFamily(famQf[0]);
            } else {
              scan.addColumn(famQf[0], famQf[1]);
            }
          }
        }
        return addScanner(table.getScanner(scan), false);
      } catch (IOException e) {

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          for(ByteBuffer column : columns) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));
            if(famQf.length == 1) {
              scan.addFamily(famQf[0]);
            } else {
              scan.addColumn(famQf[0], famQf[1]);
            }
          }
        }
        return addScanner(table.getScanner(scan), false);
      } catch (IOException e) {

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          for(ByteBuffer column : columns) {
            byte [][] famQf = KeyValue.parseColumn(getBytes(column));
            if(famQf.length == 1) {
              scan.addFamily(famQf[0]);
            } else {
              scan.addColumn(famQf[0], famQf[1]);
            }
          }
        }
        return addScanner(table.getScanner(scan), false);
      } catch (IOException e) {

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