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

   * 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);


    Put p = new Put(hi.metaEntry.getRegionName());
    HRegionInfo hri = new HRegionInfo(hi.metaEntry);

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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);


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

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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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      }
    };
    PrivilegedExceptionAction deleteQualifierAction = new PrivilegedExceptionAction() {
      public Object run() throws Exception {
        Delete d = new Delete(Bytes.toBytes("random_row"));
        d.deleteColumn(family1, qualifier);
        // d.deleteFamily(family1);
        HTable t = new HTable(conf, tableName);
        try {
          t.delete(d);
        } finally {

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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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      if (results != null && !results.isEmpty())
        count++;
      else
        break;
      Delete delete = new Delete(CellUtil.cloneRow(results.get(0)));
      delete.deleteColumn(Bytes.toBytes("trans-tags"), Bytes.toBytes("qual2"));
      r.delete(delete);
      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, true);
      assertFalse(res);


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


      put = new Put(row1);

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          put, true);
      assertTrue(res);


      // checkAndDelete with correct value
      delete = new Delete(row1);
      delete.deleteColumn(fam1, qf1);
      delete.deleteColumn(fam1, qf1);
      res = region.checkAndMutate(row1, fam1, qf1, CompareOp.EQUAL, new BinaryComparator(val2),
          delete, true);
      assertTrue(res);

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      assertTrue(res);


      // checkAndDelete with correct value
      delete = new Delete(row1);
      delete.deleteColumn(fam1, qf1);
      delete.deleteColumn(fam1, qf1);
      res = region.checkAndMutate(row1, fam1, qf1, CompareOp.EQUAL, new BinaryComparator(val2),
          delete, true);
      assertTrue(res);


      delete = new Delete(row1);

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          val1), put, true);
      assertEquals(true, res);


      // checkAndDelete with correct value
      Delete delete = new Delete(row1);
      delete.deleteColumn(fam1, qf1);
      res = region.checkAndMutate(row1, fam1, qf1, CompareOp.EQUAL, new BinaryComparator(val1),
          put, true);
      assertEquals(true, res);
    } finally {
      HRegion.closeHRegion(this.region);

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