Package org.apache.hadoop.hbase.client

Examples of org.apache.hadoop.hbase.client.HTable.incrementColumnValue()

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        try {
          Increment inc = new Increment(TEST_ROW1);
          inc.setTimeRange(0, 123);
          inc.addColumn(TEST_FAMILY1, TEST_Q1, 2L);
          t.increment(inc);
          t.incrementColumnValue(TEST_ROW1, TEST_FAMILY1, TEST_Q2, 1L);
        } finally {
          t.close();
        }
        return null;
      }
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    helper.dropTable("counters");
    helper.createTable("counters", "daily");
    // vv IncrementSingleExample
    HTable table = new HTable(conf, "counters");

    long cnt1 = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-1-Incr1 Increase counter by one.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), 1);
    long cnt2 = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-2-Incr2 Increase counter by one a second time.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), 1);

    long current = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-3-GetCurrent Get current value of the counter without increasing it.
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    // vv IncrementSingleExample
    HTable table = new HTable(conf, "counters");

    long cnt1 = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-1-Incr1 Increase counter by one.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), 1);
    long cnt2 = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-2-Incr2 Increase counter by one a second time.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), 1);

    long current = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-3-GetCurrent Get current value of the counter without increasing it.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), 0);
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    long cnt1 = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-1-Incr1 Increase counter by one.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), 1);
    long cnt2 = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-2-Incr2 Increase counter by one a second time.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), 1);

    long current = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-3-GetCurrent Get current value of the counter without increasing it.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), 0);

    long cnt3 = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-4-Decr1 Decrease counter by one.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), -1);
    // ^^ IncrementSingleExample
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      Bytes.toBytes("daily"), Bytes.toBytes("hits"), 1);

    long current = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-3-GetCurrent Get current value of the counter without increasing it.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), 0);

    long cnt3 = table.incrementColumnValue(Bytes.toBytes("20110101"), // co IncrementSingleExample-4-Decr1 Decrease counter by one.
      Bytes.toBytes("daily"), Bytes.toBytes("hits"), -1);
    // ^^ IncrementSingleExample
    System.out.println("cnt1: " + cnt1 + ", cnt2: " + cnt2 +
      ", current: " + current + ", cnt3: " + cnt3);
  }
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            deletes.add(new Delete(result.getRow()));
        }
        long totalDeletes = deletes.size();
        scanner.close();
        messages.delete(deletes);
        mailboxes.incrementColumnValue(mailboxRowKey(mailbox.getMailboxId()), MAILBOX_CF, MAILBOX_MESSAGE_COUNT, -(totalDeletes - deletes.size()));
        mailboxes.incrementColumnValue(mailboxRowKey(mailbox.getMailboxId()), MAILBOX_CF, MAILBOX_HIGHEST_MODSEQ, 1);
        mailboxes.close();
        messages.close();
    }
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        }
        long totalDeletes = deletes.size();
        scanner.close();
        messages.delete(deletes);
        mailboxes.incrementColumnValue(mailboxRowKey(mailbox.getMailboxId()), MAILBOX_CF, MAILBOX_MESSAGE_COUNT, -(totalDeletes - deletes.size()));
        mailboxes.incrementColumnValue(mailboxRowKey(mailbox.getMailboxId()), MAILBOX_CF, MAILBOX_HIGHEST_MODSEQ, 1);
        mailboxes.close();
        messages.close();
    }

    private void deleteDeletedMessagesInMailboxAfterUID(Mailbox<UUID> mailbox, long fromUid) throws IOException {
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            deletes.add(new Delete(result.getRow()));
        }
        long totalDeletes = deletes.size();
        scanner.close();
        messages.delete(deletes);
        mailboxes.incrementColumnValue(mailboxRowKey(mailbox.getMailboxId()), MAILBOX_CF, MAILBOX_MESSAGE_COUNT, -(totalDeletes - deletes.size()));
        mailboxes.incrementColumnValue(mailboxRowKey(mailbox.getMailboxId()), MAILBOX_CF, MAILBOX_HIGHEST_MODSEQ, 1);
        mailboxes.close();
        messages.close();
    }
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        }
        long totalDeletes = deletes.size();
        scanner.close();
        messages.delete(deletes);
        mailboxes.incrementColumnValue(mailboxRowKey(mailbox.getMailboxId()), MAILBOX_CF, MAILBOX_MESSAGE_COUNT, -(totalDeletes - deletes.size()));
        mailboxes.incrementColumnValue(mailboxRowKey(mailbox.getMailboxId()), MAILBOX_CF, MAILBOX_HIGHEST_MODSEQ, 1);
        mailboxes.close();
        messages.close();
    }

    private void deleteDeletedMessagesInMailbox(Mailbox<UUID> mailbox) throws IOException {
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            deletes.add(new Delete(result.getRow()));
        }
        long totalDeletes = deletes.size();
        scanner.close();
        messages.delete(deletes);
        mailboxes.incrementColumnValue(mailboxRowKey(mailbox.getMailboxId()), MAILBOX_CF, MAILBOX_MESSAGE_COUNT, -(totalDeletes - deletes.size()));
        mailboxes.incrementColumnValue(mailboxRowKey(mailbox.getMailboxId()), MAILBOX_CF, MAILBOX_HIGHEST_MODSEQ, 1);
        mailboxes.close();
        messages.close();
    }
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