PageIterator.h

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/*****************************************************************************
 *                                                                           *
 *  Copyright 2018 Rice University                                           *
 *                                                                           *
 *  Licensed under the Apache License, Version 2.0 (the "License");          *
 *  you may not use this file except in compliance with the License.         *
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 *      http://www.apache.org/licenses/LICENSE-2.0                           *
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 *  Unless required by applicable law or agreed to in writing, software      *
 *  distributed under the License is distributed on an "AS IS" BASIS,        *
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 *  See the License for the specific language governing permissions and      *
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/*
 * File:   PageIterator.h
 * Author: Jia
 *
 * Created on October 14, 2015, 10:18 AM
 */

#ifndef PAGEITERATOR_H
#define PAGEITERATOR_H

#include "PDBPage.h"

#include <memory>
using namespace std;

class PageIteratorInterface;
typedef shared_ptr<PageIteratorInterface> PageIteratorPtr;

class PageIteratorInterface {

public:
    /*
     * To support polymorphism.
     */
    virtual ~PageIteratorInterface(){};

    virtual PDBPagePtr next() = 0;

    virtual bool hasNext() = 0;
};


#endif /* PAGEITERATOR_H */