Examples of org.apache.hadoop.hbase.client.Delete.deleteColumn()

Class org.apache.hadoop.hbase.client.Delete

Examples of org.apache.hadoop.hbase.client.Delete.deleteColumn()

org.apache.hadoop.hbase.client.Delete.deleteColumn()
Delete the latest version of the specified column. This is an expensive call in that on the server-side, it first does a get to find the latest versions timestamp. Then it adds a delete using the fetched cells timestamp. @param family family name @param qualifier column qualifier @return this for invocation chaining

    put.add(A, A, A);
    put.add(B, B, B);
    put.add(C, C, C);


    Delete delete = new Delete(ROW);
    delete.deleteColumn(A, A);
    delete.deleteColumn(B, B);
    delete.deleteColumn(C, C);


    RowMutations arm = new RowMutations(ROW);
    arm.add(put);

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    put.add(B, B, B);
    put.add(C, C, C);


    Delete delete = new Delete(ROW);
    delete.deleteColumn(A, A);
    delete.deleteColumn(B, B);
    delete.deleteColumn(C, C);


    RowMutations arm = new RowMutations(ROW);
    arm.add(put);
    arm.add(delete);

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    put.add(C, C, C);


    Delete delete = new Delete(ROW);
    delete.deleteColumn(A, A);
    delete.deleteColumn(B, B);
    delete.deleteColumn(C, C);


    RowMutations arm = new RowMutations(ROW);
    arm.add(put);
    arm.add(delete);
    table.mutateRow(arm);

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            final byte[] value = Bytes.toBytes("value_for_row_" + iRow +
                "_cf_" + Bytes.toStringBinary(cf) + "_col_" + iCol + "_ts_" +
                ts + "_random_" + rand.nextLong());
            put.add(cf, qual, ts, value);
          } else if (rand.nextDouble() < 0.8) {
            del.deleteColumn(cf, qual, ts);
          } else {
            del.deleteColumns(cf, qual, ts);
          }
        }

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          long ts = HConstants.LATEST_TIMESTAMP;
          if (qv.hasTimestamp()) {
            ts = qv.getTimestamp();
          }
          if (deleteType == DeleteType.DELETE_ONE_VERSION) {
            delete.deleteColumn(family, qualifier, ts);
          } else if (deleteType == DeleteType.DELETE_MULTIPLE_VERSIONS) {
            delete.deleteColumns(family, qualifier, ts);
          } else if (deleteType == DeleteType.DELETE_FAMILY_VERSION) {
            delete.deleteFamilyVersion(family, ts);
          } else {

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   * Reset the split parent region info in meta table
   */
  private void resetSplitParent(HbckInfo hi) throws IOException {
    RowMutations mutations = new RowMutations(hi.metaEntry.getRegionName());
    Delete d = new Delete(hi.metaEntry.getRegionName());
    d.deleteColumn(HConstants.CATALOG_FAMILY, HConstants.SPLITA_QUALIFIER);
    d.deleteColumn(HConstants.CATALOG_FAMILY, HConstants.SPLITB_QUALIFIER);
    mutations.add(d);


    HRegionInfo hri = new HRegionInfo(hi.metaEntry);
    hri.setOffline(false);

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   */
  private void resetSplitParent(HbckInfo hi) throws IOException {
    RowMutations mutations = new RowMutations(hi.metaEntry.getRegionName());
    Delete d = new Delete(hi.metaEntry.getRegionName());
    d.deleteColumn(HConstants.CATALOG_FAMILY, HConstants.SPLITA_QUALIFIER);
    d.deleteColumn(HConstants.CATALOG_FAMILY, HConstants.SPLITB_QUALIFIER);
    mutations.add(d);


    HRegionInfo hri = new HRegionInfo(hi.metaEntry);
    hri.setOffline(false);
    hri.setSplit(false);

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    assertTrue(Bytes.equals(VALUE_1, value1));
    assertNotNull(value2);
    assertTrue(Bytes.equals(VALUE_2, value2));


    Delete delete = new Delete(ROW_3);
    delete.deleteColumn(COLUMN_2, QUALIFIER_2);
    remoteTable.delete(delete);


    get = new Get(ROW_3);
    get.addFamily(COLUMN_1);
    get.addFamily(COLUMN_2);

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      if (results != null && !results.isEmpty())
        count++;
      else
        break;
      Delete delete = new Delete(results.get(0).getRow());
      delete.deleteColumn(Bytes.toBytes("trans-tags"), Bytes.toBytes("qual2"));
      r.delete(delete, null, false);
      results.clear();
    } while (more);
    assertEquals("Did not perform correct number of deletes", 3, count);
  }

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      res = region.checkAndMutate(row1, fam1, qf1, CompareOp.EQUAL,
          new BinaryComparator(emptyVal), put, lockId, true);
      assertFalse(res);


      Delete delete = new Delete(row1);
      delete.deleteColumn(fam1, qf1);
      res = region.checkAndMutate(row1, fam1, qf1, CompareOp.EQUAL,
          new BinaryComparator(emptyVal), delete, lockId, true);
      assertFalse(res);


      put = new Put(row1);

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