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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: cacheupdatelistener.hxx,v $
* $Revision: 1.7 $
*
* 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 __FILTER_CONFIG_CACHEUPDATELISTENER_HXX_
#define __FILTER_CONFIG_CACHEUPDATELISTENER_HXX_
//_______________________________________________
// includes
#include "filtercache.hxx"
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/lang/XEventListener.hpp>
#include <com/sun/star/util/XChangesListener.hpp>
#include <salhelper/singletonref.hxx>
#include <cppuhelper/implbase1.hxx>
//_______________________________________________
// namespace
namespace filter{
namespace config{
//_______________________________________________
// definitions
//_______________________________________________
/** @short implements a listener, which will update the
global filter cache, if the underlying configuration
wa changed by other processes.
*/
class CacheUpdateListener : public BaseLock // must be the first one to guarantee right initialized mutex member!
, public ::cppu::WeakImplHelper1< css::util::XChangesListener >
{
//-------------------------------------------
// member
private:
/** @short reference to an uno service manager, which can be used
to create own needed services. */
css::uno::Reference< css::lang::XMultiServiceFactory > m_xSMGR;
/** @short reference to the singleton(!) filter cache implementation,
which should be updated by this thread. */
::salhelper::SingletonRef< FilterCache > m_rCache;
/** @short holds the configuration access, where we listen alive. */
css::uno::Reference< css::uno::XInterface > m_xConfig;
/** @short every instance of this update listener listen on
a special sub set of the filter configuration.
So it should know, which type of configuration entry
it must put into the filter cache, if the configuration notifys changes ... */
FilterCache::EItemType m_eConfigType;
//-------------------------------------------
// native interface
public:
//---------------------------------------
// ctor/dtor
/** @short initialize new instance of this class.
@descr Listening wont be started here. It can be done
by calling startListening() on this instance.
@see startListening()
@param xSMGR
reference to a service manager, which can be used to create
own needed uno services.
@param xConfigAccess
the configuration access, where this instance should listen for changes.
@param eConfigType
specify the type of configuration.
*/
CacheUpdateListener(const css::uno::Reference< css::lang::XMultiServiceFactory >& xSMGR ,
const css::uno::Reference< css::uno::XInterface >& xConfigAccess,
FilterCache::EItemType eConfigType );
//---------------------------------------
/** @short standard dtor.
*/
virtual ~CacheUpdateListener();
//---------------------------------------
/** @short starts listening.
*/
virtual void startListening();
//---------------------------------------
/** @short stop listening.
*/
virtual void stopListening();
//-------------------------------------------
// uno interface
public:
//---------------------------------------
// XChangesListener
virtual void SAL_CALL changesOccurred(const css::util::ChangesEvent& aEvent)
throw(css::uno::RuntimeException);
//---------------------------------------
// lang.XEventListener
virtual void SAL_CALL disposing(const css::lang::EventObject& aEvent)
throw(css::uno::RuntimeException);
};
} // namespace config
} // namespace filter
#endif // __FILTER_CONFIG_CACHEUPDATELISTENER_HXX_
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