columnar_scan_batch.h

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
#ifndef KUDU_CLIENT_COLUMNAR_SCAN_BATCH_H
#define KUDU_CLIENT_COLUMNAR_SCAN_BATCH_H

#ifdef KUDU_HEADERS_NO_STUBS
#include "kudu/gutil/macros.h"
#else
#include "kudu/client/stubs.h"
#endif

#include "kudu/util/kudu_export.h"
#include "kudu/util/status.h"

namespace kudu {
class Slice;

namespace client {

class KUDU_EXPORT KuduColumnarScanBatch {
 public:
  KuduColumnarScanBatch();
  ~KuduColumnarScanBatch();

  int NumRows() const;

  Status GetFixedLengthColumn(int idx, Slice* data) const;

  Status GetVariableLengthColumn(int idx, Slice* offsets, Slice* data) const;

  Status GetNonNullBitmapForColumn(int idx, Slice* data) const;

 private:
  class KUDU_NO_EXPORT Data;

  friend class KuduScanner;

  Data* data_;
  DISALLOW_COPY_AND_ASSIGN(KuduColumnarScanBatch);
};


} // namespace client
} // namespace kudu

#endif