swatdb.h

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/*
 * SwatDB
 *
 * @authors: See Contributors.doc for code contributors
 *
 * Copyright (c) 2020 Swarthmore College Computer Science Department
 * Swarthmore PA, Professors Tia Newhall, Ameet Soni
 */

#pragma once

#include "swatdb_types.h"

class BufferManager;
class DiskManager;
class FileManager;
class Catalog;
class Schema;

class SwatDB {

  public:

    SwatDB();

    SwatDB(std::string metadata_filename);

    ~SwatDB();

     // TODO: do we want version of destroyDB and saveDB that
     // actually do the destroying and saving at other times
     // in the execution rather than just set the state to
     // do the right thing on shutdown???
    void setDestroyDB();

    void setSaveDB(std::string filename);

    Catalog *getCatalog( ) { return cat; }

    DiskManager *getDiskMgr( ) { return disk_mgr; }

    BufferManager *getBufMgr( ) { return buf_mgr; }

    FileManager   *getFileMgr( ) { return file_mgr; }

    // TODO: do we want to export some information about the DB here
    //       statistics, sizes, etc.
    // TODO: do we want any other interface functions that are
    //       called externally?


  private:  // or protected

    Catalog *cat;

    DiskManager *disk_mgr;


    BufferManager *buf_mgr;

    FileManager *file_mgr;

    bool saved;

    std::string inited_file_name;

    std::string saved_file_name;
};