indexscan.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                            
 */                                                                             
                                                                                
#ifndef  _SWATDB_INDEXSCAN_H_
#define  _SWATDB_INDEXSCAN_H_
 
                                                                                
#include <string>                                                               
#include <vector>                                                               
#include "swatdb_types.h"                                                       
#include "select.h"
 
class FileManager;
class Catalog;
class Schema;
class File;
class RelationFile;
class HeapFile;
class HeapFileScanner;
class Record;
class Data;
class Key;
class SearchKeyFormat;
class HashIndexFile;
                                                                                
class IndexScan : public Select {                                                
                                                                                
  public:                                                                       
    IndexScan(FileId rel_id, FileId index_id, FileId result_id, 
              std::vector<FieldId> fields, 
              std::vector<Comp> comps,
              std::vector<void *> values, Catalog *catalog); 
 
    ~IndexScan();
                                                                                
    void runOperation();                                                        
                                                                                
  private:                                                                      
                                                                                
    HashIndexFile *index_file;
                                                                                
};     
 
#endif