/************************************************************************* * * 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 * * 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 */