operation.h

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/*
 * SwatDB
 *
 * @authors: See Contributors.doc for code contributors
 *
 * Copyright (c) 2020, 2025 Swarthmore College Computer Science Department
 * Swarthmore PA, Professors Tia Newhall, Ameet Soni
 */
 
#ifndef _SWATDB_OPERATION_H_
#define _SWATDB_OPERATION_H_
 
 
#include <string>
#include <vector>
#include "swatdb_types.h"
 
class FileManager;
class Catalog;
class Schema;
class File;
class RelationFile;
class HeapFile;
class HeapPage;
class Page;
class HeapFileScanner;
class Record;
class Data;
class Key;
 
// @@@@ SWATDB_ASSIGNMENT: NOTEMSG Do not modify this struct
 
struct fileState {
  File *file;
  FileId fid;
  Schema *schema;
  Record *rec;
  RecordId rid;
  Key *key;
};
// @@@@ SWATDB_ASSIGNMENT: NOTEMSG Do not modify this class definition
 
class Operation {
 
  public:
  
    Operation(FileId result_id, Catalog *catalog);
 
    virtual ~Operation();
 
    virtual void runOperation() = 0;
 
 
  protected:
    void _initState(FileId file_id, 
    std::vector<FieldId> fields, fileState *state); 
 
 
    void _delState(fileState *file_state); 
 
 
    /*
     * fileState struct for the result file
     */
    fileState result_state;
 
 
    /*
     * Catalog for SwatDB
     */
    Catalog *catalog;
 
};
 
#endif