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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 CONFIGMGR_BACKEND_CACHEMULTICASTER_HXX
#define CONFIGMGR_BACKEND_CACHEMULTICASTER_HXX
#include "sal/config.h"
#include <list>
#include "osl/mutex.hxx"
#include "rtl/ref.hxx"
#include "utility.hxx"
namespace configmgr
{
class TreeManager;
namespace backend
{
class ComponentRequest;
class UpdateRequest;
// ---------------------------------------------------------------------------
/** Interface providing a multicasting service for changes to the cache
managed by a <type>CacheController</type>
*/
class CacheChangeMulticaster
{
public:
CacheChangeMulticaster();
virtual ~CacheChangeMulticaster();
/** notify a new component to all registered listeners.
<p> Must be called after the component has been created in the cache.</p>
*/
void notifyCreated(ComponentRequest const & _aComponentName) SAL_THROW(());
/** notify changed data to all registered listeners.
<p> Must be called after the change has been applied to the cache
and before any subsequent changes to the same component.</p>
*/
void notifyChanged(UpdateRequest const & _anUpdate) SAL_THROW(());
// notification support.
/// register a listener for observing changes to the cached data
void addListener(rtl::Reference<TreeManager> _xListener) SAL_THROW(());
/// unregister a listener previously registered
void removeListener(rtl::Reference<TreeManager> _xListener) SAL_THROW(());
private:
std::list< rtl::Reference<TreeManager> > copyListenerList();
osl::Mutex m_aMutex;
std::list< rtl::Reference<TreeManager> > m_aListeners;
};
// ---------------------------------------------------------------------------
} // namespace backend
// ---------------------------------------------------------------------------
} // namespace configmgr
#endif
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