storage/TupleReference.hpp

/**
 * 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 QUICKSTEP_STORAGE_TUPLE_REFERENCE_HPP_
#define QUICKSTEP_STORAGE_TUPLE_REFERENCE_HPP_

#include "storage/StorageBlockInfo.hpp"

namespace quickstep {

class TupleStorageSubBlock;

/** \addtogroup Storage
 *  @{
 */

/**
 * @brief A reference to a particular tuple in a StorageBlock.
 **/
struct TupleReference {
  TupleReference()
      : block(0), tuple(-1) {
  }

  TupleReference(block_id block_in, tuple_id tuple_in)
      : block(block_in), tuple(tuple_in) {
  }

  block_id block;
  tuple_id tuple;
};

/** @} */

}  // namespace quickstep

#endif  // QUICKSTEP_STORAGE_TUPLE_REFERENCE_HPP_