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

Class org.apache.hadoop.hbase.client.Increment

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

org.apache.hadoop.hbase.client.Increment.addColumn()
Increment the column from the specific family with the specified qualifier by the specified amount.
Overrides previous calls to addColumn for this family and qualifier. @param family family name @param qualifier column qualifier @param amount amount to increment by @return the Increment object

    byte[] TABLE = Bytes.toBytes("readOnlyTable");
    this.region = initHRegion(TABLE, getName(), CONF, true, Bytes.toBytes("somefamily"));
    boolean exceptionCaught = false;
    Increment inc = new Increment(Bytes.toBytes("somerow"));
    inc.setDurability(Durability.SKIP_WAL);
    inc.addColumn(Bytes.toBytes("somefamily"), Bytes.toBytes("somequalifier"), 1L);
    try {
      region.increment(inc);
    } catch (IOException e) {
      exceptionCaught = true;
    } finally {

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    @Override
    public void run() {
      int count = 0;
      while (count < incCounter) {
        Increment inc = new Increment(incRow);
        inc.addColumn(family, qualifier, ONE);
        count++;
        try {
          region.increment(inc);
        } catch (IOException e) {
          e.printStackTrace();

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      assertTrue(result.isEmpty());
      table.incrementColumnValue(row1, fam, qual, 2L);
      result = table.get(get);
      assertTrue(result.isEmpty());
      Increment increment = new Increment(row1);
      increment.addColumn(fam, qual, 2L);
      increment.setCellVisibility(new CellVisibility(SECRET));
      table.increment(increment);
      result = table.get(get);
      assertTrue(!result.isEmpty());
    } finally {

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    // increment action
    PrivilegedExceptionAction incrementAction = new PrivilegedExceptionAction() {
      public Object run() throws Exception {
        Increment inc = new Increment(Bytes.toBytes("random_row"));
        inc.addColumn(TEST_FAMILY, Bytes.toBytes("Qualifier"), 1);
        HTable t = new HTable(conf, TEST_TABLE);
        try {
          t.increment(inc);
        } finally {
          t.close();

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      Increment even = new Increment(rows[0]);
      Increment all = new Increment(rows[0]);
      for (int i=0;i<numQualifiers;i++) {
        if (i % 2 == 0) even.addColumn(families[0], qualifiers[i], 1);
        else odd.addColumn(families[0], qualifiers[i], 1);
        all.addColumn(families[0], qualifiers[i], 1);
      }


      // increment odd qualifiers 5 times and flush
      for (int i=0;i<5;i++) region.increment(odd, false);
      region.flushcache();

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  public void testIncrWithReadOnlyTable() throws Exception {
    byte[] TABLE = Bytes.toBytes("readOnlyTable");
    this.region = initHRegion(TABLE, getName(), conf, true, Bytes.toBytes("somefamily"));
    boolean exceptionCaught = false;
    Increment inc = new Increment(Bytes.toBytes("somerow"));
    inc.addColumn(Bytes.toBytes("somefamily"), Bytes.toBytes("somequalifier"), 1L);
    try {
      region.increment(inc, false);
    } catch (IOException e) {
      exceptionCaught = true;
    } finally {

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    @Override
    public void run() {
      int count = 0;
      while (count < incCounter) {
        Increment inc = new Increment(incRow);
        inc.addColumn(family, qualifier, ONE);
        count++;
        try {
          region.increment(inc, true);
        } catch (IOException e) {
          e.printStackTrace();

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   */
  public static Increment incrementFromThrift(TIncrement tincrement) {
    Increment inc = new Increment(tincrement.getRow());
    byte[][] famAndQf = KeyValue.parseColumn(tincrement.getColumn());
    if (famAndQf.length != 2) return null;
    inc.addColumn(famAndQf[0], famAndQf[1], tincrement.getAmmount());
    return inc;
  }


  /**
   * From a {@link TAppend} create an {@link Append}.

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  }


  public static Increment incrementFromThrift(TIncrement in) throws IOException {
    Increment out = new Increment(in.getRow());
    for (TColumnIncrement column : in.getColumns()) {
      out.addColumn(column.getFamily(), column.getQualifier(), column.getAmount());
    }


    if (in.isSetAttributes()) {
      addAttributes(out,in.getAttributes());
    }

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    byte[] tableName = Bytes.toBytes("TestIncrement");
    HRegion region = createHRegion(tableName, "increment", wal, Durability.USE_DEFAULT);


    // col1: amount = 1, 1 write back to WAL
    Increment inc1 = new Increment(row1);
    inc1.addColumn(FAMILY, col1, 1);
    Result res = region.increment(inc1);
    assertEquals(1, res.size());
    assertEquals(1, Bytes.toLong(res.getValue(FAMILY, col1)));
    verifyHLogCount(wal, 1);

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