Examples of TDelete

org.apache.hadoop.hbase.thrift2.generated.TDelete
Used to perform Delete operations on a single row. The scope can be further narrowed down by specifying a list of columns or column families as TColumns. Specifying only a family in a TColumn will delete the whole family. If a timestamp is specified all versions with a timestamp less than or equal to this will be deleted. If no timestamp is specified the current time will be used. Specifying a family and a column qualifier in a TColumn will delete only this qualifier. If a timestamp is specified only versions equal to this timestamp will be deleted. If no timestamp is specified the most recent version will be deleted. To delete all previous versions, specify the DELETE_COLUMNS TDeleteType. The top level timestamp is only used if a complete row should be deleted (i.e. no columns are passed) and if it is specified it works the same way as if you had added a TColumn for every column family and this timestamp (i.e. all versions older than or equal in all column families will be deleted)

Examples of org.apache.hadoop.hbase.thrift2.generated.TDelete

    }
    return out;
  }


  public static TDelete deleteFromHBase(Delete in) {
    TDelete out = new TDelete(ByteBuffer.wrap(in.getRow()));


    List<TColumn> columns = new ArrayList<TColumn>();
    long rowTimestamp = in.getTimeStamp();
    if (rowTimestamp != HConstants.LATEST_TIMESTAMP) {
      out.setTimestamp(rowTimestamp);
    }


    // Map<family, List<KeyValue>>
    for (Map.Entry<byte[], List<org.apache.hadoop.hbase.Cell>> familyEntry:
        in.getFamilyCellMap().entrySet()) {
      TColumn column = new TColumn(ByteBuffer.wrap(familyEntry.getKey()));
      for (org.apache.hadoop.hbase.Cell cell: familyEntry.getValue()) {
        KeyValue kv = KeyValueUtil.ensureKeyValue(cell);
        byte[] family = kv.getFamily();
        byte[] qualifier = kv.getQualifier();
        long timestamp = kv.getTimestamp();
        if (family != null) {
          column.setFamily(family);
        }
        if (qualifier != null) {
          column.setQualifier(qualifier);
        }
        if (timestamp != HConstants.LATEST_TIMESTAMP) {
          column.setTimestamp(kv.getTimestamp());
        }
      }
      columns.add(column);
    }
    out.setColumns(columns);


    return out;
  }

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Examples of org.apache.hadoop.hbase.thrift2.generated.TDelete

    puts.add(new TPut(wrap(rowName2), columnValues));


    handler.putMultiple(table, puts);


    List<TDelete> deletes = new ArrayList<TDelete>();
    deletes.add(new TDelete(wrap(rowName1)));
    deletes.add(new TDelete(wrap(rowName2)));


    List<TDelete> deleteResults = handler.deleteMultiple(table, deletes);
    // 0 means they were all successfully applies
    assertEquals(0, deleteResults.size());

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Examples of org.apache.hadoop.hbase.thrift2.generated.TDelete


    put.setColumnValues(columnValues);


    handler.put(table, put);


    TDelete delete = new TDelete(wrap(rowName));
    List<TColumn> deleteColumns = new ArrayList<TColumn>();
    TColumn deleteColumn = new TColumn(wrap(familyAname));
    deleteColumn.setQualifier(qualifierAname);
    deleteColumns.add(deleteColumn);
    delete.setColumns(deleteColumns);


    handler.deleteSingle(table, delete);


    TGet get = new TGet(wrap(rowName));
    TResult result = handler.get(table, get);

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Examples of org.apache.hadoop.hbase.thrift2.generated.TDelete

    TGet get = new TGet(wrap(rowName));
    get.setMaxVersions(2);
    TResult result = handler.get(table, get);
    assertEquals(2, result.getColumnValuesSize());


    TDelete delete = new TDelete(wrap(rowName));
    List<TColumn> deleteColumns = new ArrayList<TColumn>();
    TColumn deleteColumn = new TColumn(wrap(familyAname));
    deleteColumn.setQualifier(qualifierAname);
    deleteColumns.add(deleteColumn);
    delete.setColumns(deleteColumns);
    delete.setDeleteType(TDeleteType.DELETE_COLUMNS); // This is the default anyway.


    handler.deleteSingle(table, delete);


    get = new TGet(wrap(rowName));
    result = handler.get(table, get);

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Examples of org.apache.hadoop.hbase.thrift2.generated.TDelete

    TGet get = new TGet(wrap(rowName));
    get.setMaxVersions(2);
    TResult result = handler.get(table, get);
    assertEquals(2, result.getColumnValuesSize());


    TDelete delete = new TDelete(wrap(rowName));
    List<TColumn> deleteColumns = new ArrayList<TColumn>();
    TColumn deleteColumn = new TColumn(wrap(familyAname));
    deleteColumn.setQualifier(qualifierAname);
    deleteColumns.add(deleteColumn);
    delete.setColumns(deleteColumns);
    delete.setDeleteType(TDeleteType.DELETE_COLUMN);


    handler.deleteSingle(table, delete);


    get = new TGet(wrap(rowName));
    result = handler.get(table, get);

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Examples of org.apache.hadoop.hbase.thrift2.generated.TDelete

    putB.setColumnValues(columnValuesB);


    // put putB so that we know whether the row has been deleted or not
    handler.put(table, putB);


    TDelete delete = new TDelete(wrap(rowName));


    assertFalse(handler.checkAndDelete(table, wrap(rowName), wrap(familyAname),
      wrap(qualifierAname), wrap(valueAname), delete));


    TGet get = new TGet(wrap(rowName));

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Examples of org.apache.hadoop.hbase.thrift2.generated.TDelete

    TScan tScan = new TScan();
    tScan.setAttributes(attributes);
    Scan scan = scanFromThrift(tScan);
    assertArrayEquals(scan.getAttribute("attribute1"), attributeValue);


    TDelete tDelete = new TDelete(wrap(rowName));
    tDelete.setAttributes(attributes);
    Delete delete = deleteFromThrift(tDelete);
    assertArrayEquals(delete.getAttribute("attribute1"), attributeValue);
  }

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Examples of org.apache.hadoop.hbase.thrift2.generated.TDelete

        wrap(valueBname));
    columnValuesB.add(columnValueB);
    TPut putB = new TPut(wrap(rowName), columnValuesB);
    putB.setColumnValues(columnValuesB);


    TDelete delete = new TDelete(wrap(rowName));
    List<TColumn> deleteColumns = new ArrayList<TColumn>();
    TColumn deleteColumn = new TColumn(wrap(familyAname));
    deleteColumn.setQualifier(qualifierAname);
    deleteColumns.add(deleteColumn);
    delete.setColumns(deleteColumns);


    List<TMutation> mutations = new ArrayList<TMutation>();
    TMutation mutationA = TMutation.put(putB);
    mutations.add(mutationA);

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Examples of org.apache.hadoop.hbase.thrift2.generated.TDelete

    columnValues.add(new TColumnValue(wrap(familyAname), wrap(qualifierAname), wrap(valueAname)));


    List<TColumnIncrement> incrementColumns = new ArrayList<TColumnIncrement>();
    incrementColumns.add(new TColumnIncrement(wrap(familyAname), wrap(qualifierAname)));


    TDelete tDelete = new TDelete(wrap(rowName));


    //if not setting writeToWal, check for default value
    Delete delete = deleteFromThrift(tDelete);
    assertEquals(delete.getDurability(), Durability.USE_DEFAULT);


    //if setting writeToWal to true, durability should be CF default
    tDelete.setWriteToWal(true);
    delete = deleteFromThrift(tDelete);
    assertEquals(delete.getDurability(), Durability.USE_DEFAULT);


    //if setting writeToWal to false, durability should be SKIP_WAL
    tDelete.setWriteToWal(false);
    delete = deleteFromThrift(tDelete);
    assertEquals(delete.getDurability(), Durability.SKIP_WAL);




    tDelete.setDurability(TDurability.SKIP_WAL);
    delete = deleteFromThrift(tDelete);
    assertEquals(delete.getDurability(), Durability.SKIP_WAL);


    tDelete.setDurability(TDurability.ASYNC_WAL);
    delete = deleteFromThrift(tDelete);
    assertEquals(delete.getDurability(), Durability.ASYNC_WAL);


    tDelete.setDurability(TDurability.SYNC_WAL);
    delete = deleteFromThrift(tDelete);
    assertEquals(delete.getDurability(), Durability.SYNC_WAL);


    tDelete.setDurability(TDurability.FSYNC_WAL);
    delete = deleteFromThrift(tDelete);
    assertEquals(delete.getDurability(), Durability.FSYNC_WAL);


    TPut tPut = new TPut(wrap(rowName), columnValues);

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Examples of org.apache.hadoop.hbase.thrift2.generated.TDelete

    }
    return out;
  }


  public static TDelete deleteFromHBase(Delete in) {
    TDelete out = new TDelete(ByteBuffer.wrap(in.getRow()));


    List<TColumn> columns = new ArrayList<TColumn>();
    long rowTimestamp = in.getTimeStamp();
    if (rowTimestamp != HConstants.LATEST_TIMESTAMP) {
      out.setTimestamp(rowTimestamp);
    }


    // Map<family, List<KeyValue>>
    for (Map.Entry<byte[], List<org.apache.hadoop.hbase.Cell>> familyEntry:
        in.getFamilyCellMap().entrySet()) {
      TColumn column = new TColumn(ByteBuffer.wrap(familyEntry.getKey()));
      for (org.apache.hadoop.hbase.Cell cell: familyEntry.getValue()) {
        KeyValue kv = KeyValueUtil.ensureKeyValue(cell);
        byte[] family = kv.getFamily();
        byte[] qualifier = kv.getQualifier();
        long timestamp = kv.getTimestamp();
        if (family != null) {
          column.setFamily(family);
        }
        if (qualifier != null) {
          column.setQualifier(qualifier);
        }
        if (timestamp != HConstants.LATEST_TIMESTAMP) {
          column.setTimestamp(kv.getTimestamp());
        }
      }
      columns.add(column);
    }
    out.setColumns(columns);


    return out;
  }

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