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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_UCBHELPER_RESULTSETHELPER_HXX
#define INCLUDED_UCBHELPER_RESULTSETHELPER_HXX
#include <mutex>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/ucb/XDynamicResultSet.hpp>
#include <com/sun/star/ucb/OpenCommandArgument2.hpp>
#include <comphelper/interfacecontainer4.hxx>
#include <cppuhelper/implbase.hxx>
#include <ucbhelper/ucbhelperdllapi.h>
namespace com::sun::star::uno { class XComponentContext; }
namespace cppu {
class OInterfaceContainerHelper;
}
namespace ucbhelper {
inline constexpr OUString DYNAMICRESULTSET_SERVICE_NAME = u"com.sun.star.ucb.DynamicResultSet"_ustr;
/**
* This is an abstract base class for implementations of the service
* com.sun.star.ucb.DynamicResultSet, which is the result of the command
* "open" executed at a UCB folder content.
*
* Features of the base class implementation:
* - standard interfaces ( XInterface, XTypeProvider, XServiceInfo )
* - all required interfaces for service css::ucb::DynamicResultSet
*/
class UCBHELPER_DLLPUBLIC ResultSetImplHelper :
public cppu::WeakImplHelper<
css::lang::XServiceInfo,
css::ucb::XDynamicResultSet>
{
comphelper::OInterfaceContainerHelper4<css::lang::XEventListener> m_aDisposeEventListeners;
bool m_bStatic;
bool m_bInitDone;
protected:
std::mutex m_aMutex;
css::ucb::OpenCommandArgument2 m_aCommand;
css::uno::Reference< css::uno::XComponentContext > m_xContext;
// Resultset #1
css::uno::Reference< css::sdbc::XResultSet > m_xResultSet1;
// Resultset #2
css::uno::Reference< css::sdbc::XResultSet > m_xResultSet2;
// Resultset changes listener.
css::uno::Reference< css::ucb::XDynamicResultSetListener > m_xListener;
private:
UCBHELPER_DLLPRIVATE void init( bool bStatic );
/**
* Your implementation of this method has to fill the protected member
* m_xResultSet1. This resultset must implement a complete static
* resultset ( service com.sun.star.ucb.ContentResultSet ). This method
* will be called at most once in the life of your implementation object.
* After this method was called, the type of this resultset will be
* "static". There is no way to change the type afterwards.
* If this method gets called the client wants to use your resultset
* exclusively statically. You may deploy this factum to optimize your
* implementation (i.e. "switch off" all changes detection code in
* your implementation).
* Note that you may use the class ucb::ResultSet to implement the
* static resultset, that is required here.
*/
UCBHELPER_DLLPRIVATE virtual void initStatic() = 0;
/**
* Your implementation of this method has to fill the protected members
* m_xResultSet1 and m_xResultSet2 of this base class. Each of these
* resultsets must implement a complete static resultset
* ( service com.sun.star.ucb.ContentResultSet ). This method will be
* called at most once in the life of your implementation object.
* After this method was called, the type of this resultset will be
* "dynamic". There is no way to change the type afterwards.
* If this method gets called the client wants to use your resultset
* exclusively dynamically. This means, it is interested in getting
* notifications on changes of data of the resultset contents. ( These
* changes are to propagate by your implementation throw the member
* m_xListener of this base class ).
* If your implementation cannot detect changes of relevant data, you
* may fill m_xResultSet1 and m_xResultSet2 with the same static resultset
* implementation object. This normally will be the same instance you put
* into m_xResultSet1 when initStatic() is called.
*/
UCBHELPER_DLLPRIVATE virtual void initDynamic() = 0;
public:
/**
* Constructor.
*
* @param rxContext is a Service Manager.
* @param rCommand is the parameter for the open command that produces
* this resultset.
*/
ResultSetImplHelper(
css::uno::Reference<
css::uno::XComponentContext > xContext,
css::ucb::OpenCommandArgument2 aCommand );
/**
* Destructor.
*/
virtual ~ResultSetImplHelper() override;
// XServiceInfo
virtual OUString SAL_CALL getImplementationName() override;
virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
// XComponent ( base class of XDynamicResultSet )
virtual void SAL_CALL
dispose() override;
virtual void SAL_CALL
addEventListener( const css::uno::Reference< css::lang::XEventListener >& Listener ) override;
virtual void SAL_CALL
removeEventListener( const css::uno::Reference< css::lang::XEventListener >& Listener ) override;
// XDynamicResultSet
virtual css::uno::Reference< css::sdbc::XResultSet > SAL_CALL
getStaticResultSet() override;
virtual void SAL_CALL
setListener( const css::uno::Reference< css::ucb::XDynamicResultSetListener >& Listener ) override;
virtual void SAL_CALL
connectToCache( const css::uno::Reference< css::ucb::XDynamicResultSet > & xCache ) override;
/**
* The implementation of this method always returns 0. Override this
* method, if necessary.
*/
virtual sal_Int16 SAL_CALL
getCapabilities() override;
};
}
#endif /* ! INCLUDED_UCBHELPER_RESULTSETHELPER_HXX */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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