/*
 * Copyright (C) 2007-2010 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 bool has( const keytype &key )=0;
		virtual Bu::List<keytype> getKeys() { return Bu::List<keytype>(); }
		virtual int getSize() { return -1; }

	private:
	};
};

#endif