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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _STORE_STORCACH_HXX
#define _STORE_STORCACH_HXX "$Revision: 1.6.8.2 $"
#include "sal/types.h"
#include "rtl/ref.hxx"
#include "store/types.h"
#include "storbase.hxx"
namespace store
{
/*========================================================================
*
* PageCache interface.
*
*======================================================================*/
class PageCache : public rtl::IReference
{
public:
/** load.
*/
storeError lookupPageAt (
PageHolder & rxPage,
sal_uInt32 nOffset);
/** insert.
*/
storeError insertPageAt (
PageHolder const & rxPage,
sal_uInt32 nOffset);
/** update, or insert.
*/
storeError updatePageAt (
PageHolder const & rxPage,
sal_uInt32 nOffset);
/** remove (invalidate).
*/
storeError removePageAt (
sal_uInt32 nOffset);
private:
/** Implementation (abstract).
*/
virtual storeError lookupPageAt_Impl (
PageHolder & rxPage,
sal_uInt32 nOffset) = 0;
virtual storeError insertPageAt_Impl (
PageHolder const & rxPage,
sal_uInt32 nOffset) = 0;
virtual storeError updatePageAt_Impl (
PageHolder const & rxPage,
sal_uInt32 nOffset) = 0;
virtual storeError removePageAt_Impl (
sal_uInt32 nOffset) = 0;
};
/*========================================================================
*
* PageCache factory.
*
*======================================================================*/
storeError
PageCache_createInstance (
rtl::Reference< store::PageCache > & rxCache,
sal_uInt16 nPageSize
);
/*========================================================================
*
* The End.
*
*======================================================================*/
} // namespace store
#endif /* !_STORE_STORCACH_HXX */
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