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

      region.put(put);


      // We do support deleting more than 1 'latest' version
      Delete delete = new Delete(row1);
      delete.deleteColumn(fam1, qual);
      delete.deleteColumn(fam1, qual);
      region.delete(delete);


      Get get = new Get(row1);
      get.addFamily(fam1);
      Result r = region.get(get);

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        @Override
        public boolean processRow(Result rowResult) throws IOException {
          if(!MetaScanner.getHRegionInfo(rowResult).getTable().isSystemTable()) {
            Delete delete = new Delete(rowResult.getRow());
            delete.deleteColumn(HConstants.CATALOG_FAMILY, HConstants.REGIONINFO_QUALIFIER);
            deletes.add(delete);
          }
          return true;
        }

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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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  }


  @Test
  public void testMinorCompactionWithDeleteColumn2() throws Exception {
    Delete dc = new Delete(secondRowBytes);
    dc.deleteColumn(fam2, col2);
    /* compactionThreshold is 3. The table has 4 versions: 0, 1, 2, and 3.
     * we only delete the latest version. One might expect to see only
     * versions 1 and 2. HBase differs, and gives us 0, 1 and 2.
     * This is okay as well. Since there was no compaction done before the
     * delete, version 0 seems to stay on.

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  }


  @Test
  public void testMinorCompactionWithDeleteVersion2() throws Exception {
    Delete deleteVersion = new Delete(secondRowBytes);
    deleteVersion.deleteColumn(fam2, col2, 1);
    /*
     * the table has 4 versions: 0, 1, 2, and 3.
     * We delete 1.
     * Should have 3 remaining.
     */

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          if (column.isSetTimestamp()) {
            if (in.isSetDeleteType() &&
                in.getDeleteType().equals(TDeleteType.DELETE_COLUMNS))
              out.deleteColumns(column.getFamily(), column.getQualifier(), column.getTimestamp());
            else
              out.deleteColumn(column.getFamily(), column.getQualifier(), column.getTimestamp());
          } else {
            if (in.isSetDeleteType() &&
                in.getDeleteType().equals(TDeleteType.DELETE_COLUMNS))
              out.deleteColumns(column.getFamily(), column.getQualifier());
            else

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          } else {
            if (in.isSetDeleteType() &&
                in.getDeleteType().equals(TDeleteType.DELETE_COLUMNS))
              out.deleteColumns(column.getFamily(), column.getQualifier());
            else
              out.deleteColumn(column.getFamily(), column.getQualifier());
          }


        } else {
          if (column.isSetTimestamp()) {
            out.deleteFamily(column.getFamily(), column.getTimestamp());

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        TEST_TABLE,
        new Boolean[] {true, true, true, true, false}
    );


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


    verifyMethodResult(SimpleRegionObserver.class,

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        new Boolean[] {true, true, true, true, false}
    );


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


    verifyMethodResult(SimpleRegionObserver.class,
        new String[] {"hadPreGet", "hadPostGet", "hadPrePut", "hadPostPut",

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    );


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


    verifyMethodResult(SimpleRegionObserver.class,
        new String[] {"hadPreGet", "hadPostGet", "hadPrePut", "hadPostPut",
            "hadPreBatchMutate", "hadPostBatchMutate", "hadDelete"},

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