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/*
 * Copyright (C) 2007-2012 Xagasoft, All rights reserved.
 *
 * This file is part of the libbu++ library and is released under the
 * terms of the license contained in the file LICENSE.
 */

#ifndef BU_CACHE_STORE_H
#define BU_CACHE_STORE_H

#include "bu/list.h"

namespace Bu
{
    /**
     * Handles I/O for data in the cache.  This also assigns ID's to the newly
     * created objects that are requested through this system.
     */
    template<class keytype, class obtype>
    class CacheStore
    {
    public:
        CacheStore()
        {
        }

        virtual ~CacheStore()
        {
        }

        virtual obtype *load( const keytype &key )=0;
        virtual void unload( obtype *pObj, const keytype &key )=0;
        virtual keytype create( obtype *pSrc )=0;
        virtual void sync()=0;
        virtual void sync( obtype *pObj, const keytype &key )=0;
        virtual void destroy( obtype *pObj, const keytype &key )=0;
        virtual void destroy( const keytype &key )=0;
        virtual bool has( const keytype &key )=0;
        virtual Bu::List<keytype> getKeys() { return Bu::List<keytype>(); }
        virtual int getSize() { return -1; }

    private:
    };
};

#endif