/* -*- 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 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 */
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