IScanOperator.h Source File

00001 /*
00002  *  IScanOperator.h
00003  *  DavisDB
00004  *
00005  *  Created by Todd J. Green on 5/13/10.
00006  *  Copyright 2010 University of California, Davis. All rights reserved.
00007  *
00008  */
00009 
00010 #ifndef _ISCANOPERATOR_H
00011 #define _ISCANOPERATOR_H
00012 
00013 #include "Common.h"
00014 #include "IQueryOperator.h"
00015 
00035 class IScanOperator : public IQueryOperator {
00036 public:
00048         virtual ReturnCode openScan(int nAttribute, ComparisonOp op, const TypedValue* value) = 0;
00049         
00055         virtual ReturnCode closeScan() = 0;
00056         
00064         virtual ~IScanOperator() {};
00065 };
00066 
00067 #endif // _ISCANOPERATOR_H