fileScanner.h

#pragma once

#include <string>
#include "include/types.h"
#include "include/page.h"
#include "include/buffer.h"
#include "include/file_iterator.h"
#include "include/page_iterator.h"

namespace wiscdb {

class FileScanner
{
 public:

  FileScanner(const std::string &name, BufferManager *bufMgr);

  ~FileScanner();

  //return RecordId of next record that satisfies the scan 
  void scanNext(RecordId& outRid);

  //read current record, returning pointer and length
  std::string getRecord();

  //marks current page of scan dirty
  void markDirty();

 private:
  PageFile      *file;

  BufferManager *bufMgr;

  Page*         curPage;

  FileIterator  filePageIter;
  PageIterator  pageRecordIter;

  bool          curDirtyFlag;
};

}