ndbt_dataset.hpp

mysql-5.0.22.tar.gz源码包

/* Copyright (C) 2003 MySQL AB

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#ifndef NDBT_DATA_SET_HPP
#define NDBT_DATA_SET_HPP

#include "NDBT_Table.hpp"
#include <NdbApi.hpp>

class NDBT_DataSet;

class NDBT_DataSetFactory {
public:
  NDBT_DataSet * createEmpty(const NDBT_Table & table, 
			     const char * columns[]);
  
  NDBT_DataSet * createRandom(const NDBT_DataSet & table, 
			      const char * columns[],
			      int rows);
  
  NDBT_DataSet * createXXX(int noOfDS, const NDBT_DataSet ** datasets);
};

class NDBT_DataSet {
  friend class NDBT_DataSetFactory;
public:
  /**
   * Rows in the data set
   */
  void setRows(int rows);
  void addRows(int rows);
  
  int getNoOfRows() const;

  /**
   * Columns for a row in the data set
   */
  int getNoOfColumns() const;
  int getNoOfPKs() const;
  
  const NDBT_Attribute * getColumn(int index);
  const NDBT_Attribute * getColumn(const char * name);
  
  /**
   * Data status in dataset
   */
  bool hasPK(int row);
  bool hasData(int row);

  /**
   * Do all rows in the dataset have a PK
   */
  bool hasPK();
  
  /**
   * Do all rows in the dataset has data
   */
  bool hasData();
  
  /**
   * Getters for data
   */
  Uint32 getUInt(int row, int index) const;
  Uint32 getUInt(int row, const char * attribute) const;
  
  Int32 getInt(int row, int index) const;
  Int32 getInt(int row, const char * attribute) const;
  
  const char * getString(int row, int index) const;
  const char * getString(int row, const char * attribute) const;

  bool getIsNull(int row, int index) const;
  bool getIsNull(int row, const char * attribute) const;
  
  /**
   * Setters for data
   */
  void set(int row, int index, Int32 value);
  void set(int row, const char * attr, Int32 value);
  
  void set(int row, int index, Uint32 value);
  void set(int row, const char * attr, Uint32 value);
  
  void set(int row, int index, const char * value);
  void set(int row, const char * attr, const char * value);

  /**
   * Comparators
   */

  /**
   * Is this dataset identical to other dataset
   *
   * If either of the datasets have "undefined" rows the answer is false
   */
  bool equal(const NDBT_DataSet & other) const;
  
  /**
   * Do these dataset have identical PK's
   *
   * I.e noOfRows equal
   *
   * and for each row there is a corresponding row in the other ds
   *     with the same pk
   */
  bool equalPK(const NDBT_DataSet & other) const;

private:
  NDBT_Attribute * columns;
  
  Uint32 noOfRows;
  Uint32 noOfPKs;
  
  Uint32 * pks;
  Uint32 * columnSizes;
  
  char * pkData;
  char * data;

  char * pk(int row, int pkIndex);
  char * column(int row, int columnIndex);

  Uint32 * hasPK;
  Uint32 * hasData;
};

#endif