/Users/green/Documents/workspace/DavisDB_public/RecordFileScan.h

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/*
 * RecordFileScan.h
 *
 *  Created on: Mar 28, 2010
 *      Author: green
 */

#ifndef RECORDFILESCAN_H_
#define RECORDFILESCAN_H_

#include "RecordManager.h"
#include "Record.h"

enum AttributeType {
        INTEGER,        
        FLOAT,          
        STRING          
};

enum ComparisonOp {
        EQ_OP,  
        LT_OP,  
        GT_OP,  
        LE_OP,  
        GE_OP,  
        NE_OP,  
        NO_OP   
};

class RecordFileScan {
public:

        RecordFileScan();
        ~RecordFileScan();

    ReturnCode openScan(RecordFileHandle *fileHandle, AttributeType attrType,
             int attrLength, int attrOffset, ComparisonOp compOp, void* value);

    ReturnCode getNextRecord(Record *record);

    ReturnCode closeScan();

};


#endif /* RECORDFILESCAN_H_ */

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